INTERNATIONAL CONVENTION ON LOAD LINES, 1966
INTERNATIONAL CONVENTION ON LOAD LINES, 1966
Whole document
TABLE OF CONTENTS
INTERNATIONAL CONVENTION ON LOAD LINES, 1966
ANNEX I REGULATIONS FOR DETERMINING
LOAD LINES
ANNEX II ZONES, AREAS AND SEASONAL
PERIODS
ANNEX III CERTIFICATE
INTERNATIONAL CONVENTION ON LOAD LINES, 1966
The Contracting Governments,
DESIRING to establish uniform principles and rules with respect to the
limits to which ships on international voyages may be loaded having regard
to the need for safeguarding life and property at sea;
CONSIDERING that this end may best be achieved by conclusion of a
Convention;
HAVE AGREED as follows:
ARTICLE 1 General Obligation under the Convention
(1) The Contracting Governments undertake to give effect to the
provisions of the present Convention and the Annexes hereto, which shall
constitute an integral part of the present Convention. Every reference to
the present Convention constitutes at the same time a reference to the
Annexes.
(2) The Contracting Governments shall undertake all measures which may
be necessary to give effect to the present Convention.
ARTICLE 2 Definitions
For the purpose of the present Convention, unless expressly provided
otherwise:
(1) "Regulations" means the Regulations annexed to the present
Convention.
(2) "Administration" means the Government of the State whose flag
the ship is flying.
(3) "Approved" means approved by the Administration.
(4) "International voyage" means a sea voyage from a country to
which the present Convention applies to a port outside such country, or
conversely. For this purpose, every territory for the international
relations of which a Contracting Government is responsible or for which
the United Nations are the administering authority is regarded as a
separate country.
(5) A "fishing vessel" is a ship used for catching fish, whales,
seals, walrus or other living resources of the sea.
(6) "New ship" means a ship the keel of which is laid, or which is
at a similar stage of construction, on or after the date of coming into
force of the present Convention for each Contracting Government.
(7) "Existing ship" means a ship which is not a new ship.
(8) "Length" means 96 per cent of the total length on a waterline
at 85 per cent of the least moulded depth measured from the top of the
keel, or the length from the fore side of the stem to the axis of the
rudder stock on that waterline, if that be greater. In ships designed with
a rake of keel the waterline on which this length is measured shall be
parallel to the designed waterline.
ARTICLE 3 General Provisions
(1) No ship to which the present Convention applies shall proceed to
sea on an international voyage after the date on which the present
Convention comes into force unless it has been surveyed, marked and
provided with an International Load Line Certificate (1966) or, where
appropriate, an International Load Line Exemption Certificate in
accordance with the provisions of the present Convention.
(2) Nothing in this Convention shall prevent an Administration from
assigning a greater freeboard than the minimum freeboard determined in
accordance with Annex I.
ARTICLE 4 Application
(1) The present Convention shall apply to:
(a) ships registered in countries the Governments of which are
Contracting Governments;
(b) ships registered in territories to which the present
Convention is extended under Article 32; and
(c) unregistered ships flying the flag of a State, the Government
of which is a Contracting Government.
(2) The present Convention shall apply to ships engaged on
international voyages.
(3) The Regulations contained in Annex I are specifically applicable
to new ships.
(4) Existing ships which do not fully comply with the requirements of
the Regulations contained in Annex I or any part thereof shall meet at
least such lesser related requirements as the Administration applied to
ships on international voyages prior to the coming into force of the
present Convention; in no case shall such ships be required to increase
their freeboards. In order to take advantage of any reduction in freeboard
from that previously assigned, existing ships shall comply with all the
requirements of the present Convention.
(5) The Regulations contained in Annex II are applicable to new and
existing ships to which the present Convention applies.
ARTICLE 5 Exceptions
(1) The present Convention shall not apply to:
(a) ships of war;
(b) new ships of less than 24 metres (79 feet) in length;
(c) existing ships of less than 150 tons gross;
(d) pleasure yachts not engaged in trade;
(e) fishing vessels.
(2) Nothing herein shall apply to ships solely navigating:
(a) the Great Lakes of North America and the River St. Lawrence as
far east as a rhumb line drawn from Cap des Rosiers to West Point,
Anticosti Island, and, on the north side of Anticosti Island, the meridian
of longitude 63¡ãW;
(b) the Caspian Sea;
(c) the Plate, Parana and Uruguay Rivers as far east as a rhumb
line drawn between Punta Norte, Argentina, and Punta del Este, Uruguay.
ARTICLE 6 Exemptions
(1) Ships when engaged on international voyages between the near
neighbouring ports of two or more States may be exempted by the
Administration from the provisions of the present Convention, so long as
they shall remain engaged on such voyages, if the Governments of the
States in which such ports are situated shall be satisfied that the
sheltered nature or conditions of such voyages between such ports make it
unreasonable or impracticable to apply the provisions of the present
Convention to ships engaged on such voyages.
(2) The Administration may exempt any ship which embodies features of
a novel kind from any of the provisions of this Convention the application
of which might seriously impede research into the development of such
features and their incorporation in ships engaged on international
voyages. Any such ship shall, however, comply with safety requirements
which, in the opinion of that Administration, are adequate for the
service for which it is intended and are such as to ensure the overall
safety of the ship and which are acceptable to the Governments of the
States to be visited by the ship.
(3) The Administration which allows any exemption under paragraphs (1)
and (2) of this Article shall communicate to the Inter-Governmental
Maritime Consultative Organization (hereinafter called the Organization)
particulars of the same and reasons therefor which the Organization shall
circulate to the Contracting Governments for their information.
(4) A ship which is not normally engaged on international voyages but
which, in exceptional circumstances, is required to undertake a single
international voyage may be exempted by the Administration from any of the
requirements of the present Convention, provided that it complies with
safety requirements which, in the opinion of that Administration, are
adequate for the voyage which is to be undertaken by the ship.
ARTICLE 7 Force Majeure
(1) A ship which is not subject to the provisions of the present
Convention at the time of its departure on any voyage shall not become
subject to such provisions on account of any deviation from its intended
voyage due to stress of weather or any other cause of force majeure.
(2) In applying the provisions of the present Convention, the
Contracting Government shall give due consideration to any deviation or
delay caused to any ship owing to stress of weather or any other cause of
force majeure.
ARTICLE 8 Equivalents
(1) The Administration may allow any fitting, material, appliance or
apparatus to be fitted, or any other provision to be made in a ship,
other than that required by the present Convention, if it is satisfied by
trial thereof or otherwise that such fitting, material, appliance or
apparatus, or provision, is at least as effective as that required by the
Convention.
(2) The Administration which allows a fitting, material, appliance or
apparatus, or provision, other than that required by the present
Convention, shall communicate to the Organization for circulation to the
Contracting Governments particulars thereof, together with a report on any
trials made.
ARTICLE 9 Approvals for Experimental Purposes
(1) Nothing in the present Convention shall prevent an Administration
from making specific approvals for experimental purposes in respect of a
ship to which the Convention applies.
(2) An Administration which makes any such approval shall communicate
to the Organization for circulation to the Contracting Governments
particulars thereof.
ARTICLE 10 Repairs, Alterations and Modifications
(1) A ship which undergoes repairs, alterations, modifications and
outfitting related thereto shall continue to comply with at least the
requirements previously applicable to the ship. An existing ship in such a
case shall not, as a rule, comply to a lesser extent with the requirements
for a new ship than it did before.
(2) Repairs, alterations and modifications of a major character and
outfitting related thereto should meet the requirements for a new ship in
so far as the Administration deems reasonable and practicable.
ARTICLE 11 Zones and Areas
(1) A ship to which the present Convention applies shall comply with
the requirements applicable to that ship in the zones and areas described
in Annex II.
(2) A port standing on the boundary line between two zones or areas
shall be regarded as within the zone or area from or into which the ship
arrives or departs.
ARTICLE 12 Submersion
(1) Except as provided in paragraphs (2) and (3) of this Article, the
appropriate load lines on the sides of the ship corresponding to the
season of the year and the zone or area in which the ship may be shall not
be submerged at any time when the ship puts to sea, during the voyage or
on arrival.
(2) When a ship is in fresh water of unit density the appropriate load
line may be submerged by the amount of the fresh water allowance shown on
the International Load Line Certificate (1966). Where the density is other
than unity, an allowance shall be made proportional to the difference
between 1.025 and the actual density.
(3) When a ship departs from a port situated on a river or inland
waters, deeper loading shall be permitted corresponding to the weight of
fuel and all other materials required for consumption between the point of
departure and the sea.
ARTICLE 13 Survey, Inspection and Marking
The survey, inspection and marking of ships, as regards the
enforcement of the provisions of the present Convention and the granting
of exemptions therefrom, shall be carried out by officers of the
Administration. The Administration may, however, entrust the survey,
inspection and marking either to surveyors nominated for the purpose or to
organizations recognized by it. In every case the Administration concerned
fully guarantees the completeness and efficiency of the survey, inspection
and marking.
ARTICLE 14 Initial and Periodical Surveys and Inspections
(1) A ship shall be subjected to the surveys and inspections specified
below:
(a) A survey before the ship is put in service, which shall
include a complete inspection of its structure and equipment insofar as
the ship is covered by the present Convention. This survey shall be such
at to ensure that the arrangements, material, and scantlings fully comply
with the requirements of the present Convention.
(b) A periodical survey at intervals specified by the
Administration, but not exceeding five years, which shall be such as to
ensure that the structure, equipment, arrangements, material and
scantlings fully comply with the requirements of the present Convention.
(c) A periodical inspection within three months either way of each
annual anniversary date of the certificate, to ensure that alterations
have not been made to the hull or superstructures which would affect the
calculations determining the position of the load line and so as to ensure
the maintenance in an effective condition of fittings and appliances for:
(i) protection of openings;
(ii) guard rails;
(iii) freeing ports; and
(iv) means of access to crew's quarters.
(2) The periodical inspections referred to in paragraph (1) (c) of
this Article shall be endorsed on the International Load Line Certificate
(1966) or on the International Load Line Exemption Certificate issued to a
ship exempted under paragraph (2) of Article 6 of the present Convention.
ARTICLE 15 Maintenance of Conditions after Survey
After any survey of the ship under Article 14 has been completed, no
change shall be made in the structure, equipment, arrangements, material
or scantlings covered by the survey, without the sanction of the
Administration.
ARTICLE 16 Issue of Certificates
(1) An International Load Line Certificate (1966) shall be issued to
every ship which has been surveyed and marked in accordance with the
present Convention.
(2) An International Load Line Exemption Certificate shall be issued
to any ship to which an exemption has been granted under and in accordance
with paragraph (2) or (4) of Article 6.
(3) Such certificates shall be issued by the Administration or by any
person or organization duly authorized by it. In every case, the
Administration assumes full responsibility for the certificate.
(4) Notwithstanding any other provision of the present Convention, any
international load line certificate which is current when the present
Convention comes into force in respect of the Government of the State
whose flag the ship is flying shall remain valid for two years or until it
expires, whichever is earlier. After that time an International Load Line
Certificate (1966) shall be required.
ARTICLE 17 Issue of Certificate by another Government
(1) A Contracting Government may, at the request of another
Contracting Government, cause a ship to be surveyed and, if satisfied
that the provisions of the present Convention are complied with, shall
issue or authorize the issue of an International Load Line Certificate
(1966) to the ship in accordance with the present Convention.
(2) A copy of the certificate, a copy of the survey report used for
computing the freeboard, and a copy of the computations shall be
transmitted as early as possible to the requesting Government.
(3) A certificate so issued must contain a statement to the effect
that it has been issued at the request of the Government of the state
whose flag the ship is or will be flying and it shall have the same force
and receive the same recognition as a certificate issued under Article 16.
(4) No International Load Line Certificate (1966) shall be issued to a
ship which is flying the flag of a State the Government of which is not a
Contracting Government.
ARTICLE 18 Form of Certificates
(1) The certificates shall be drawn up in the official language or
languages of the issuing country. If the language used is neither English
nor French, the text shall include a translation into one of these
languages.
(2) The form of the certificates shall be that of the models given in
Annex III. The arrangement of the printed part of each model certificate
shall be exactly reproduced in any certificates issued, and in any
certified copies thereof.
ARTICLE 19 Duration of Certificates
(1) An International Load Line Certificate (1966) shall be issued for
a period specified by the Administration, which shall not exceed five
years from the date of issue.
(2) If, after the periodical survey referred to in paragraph (1) (b)
of Article 14, a new certificate cannot be issued to the ship before the
expiry of the certificate originally issued, the person or organization
carrying out the survey may extend the validity of the original
certificate for a period which shall not exceed five months. This
extension shall be endorsed on the certificate, and shall be granted only
where there have been no alterations in the structure, equipment,
arrangements, material or scantlings which affect the ship's freeboard.
(3) An International Load Line Certificate (1966) shall be cancelled
by the Administration if any of the following circumstances exist:
(a) material alterations have taken place in the hull or
superstructures of the ship such as would necessitate the assignment of an
increased freeboard;
(b) the fittings and appliances mentioned in subparagraph (c) of
paragraph (1) of Article 14 are not maintained in an effective condition;
(c) the certificate is not endorsed to show that the ship has been
inspected as provided in subparagraph (c) of paragraph (1) of Article 14;
(d) the structural strength of the ship is lowered to such an
extent that the ship is unsafe.
(4) (a) The duration of an International Load Line Exemption
Certificate issued by an Administration to a ship exempted under paragraph
(2) of Article 6 shall not exceed five years from the date of issue. Such
certificate shall be subject to a renewal, endorsement and cancellation
procedure similar to that provided for an International Load Line
Certificate (1966) under this Article.
(b) The duration of an International Load Line Exemption
Certificate issued to a ship exempted under paragraph (4) of Article 6
shall be limited to the single voyage for which it is issued.
(5) A certificate issued to a ship by an Administration shall cease to
be valid upon the transfer of such a ship to the flag of another State.
ARTICLE 20 Acceptance of Certificates
The certificate issued under the authority of a Contracting Government
in accordance with the present Convention shall be accepted by the other
Contracting Governments and regarded for all purposes covered by the
present Convention as having the same force as certificates issued by
them.
ARTICLE 21 Control
(1) Ships holding a certificate issued under Article 16 or Article 17
are subject, when in the ports of other Contracting Governments, to
control by officers duly authorized by such Governments. Contracting
Governments shall ensure that such control is exercised as far as is
reasonable and practicable with a view to verifying that there is on board
a valid certificate under the present Convention. If there is a valid
International Load Line Certificate (1966) on board the ship, such control
shall be limited to the purpose of determining that:
(a) the ship is not loaded beyond the limits allowed by the
certificate;
(b) the position of the load line of the ship corresponds with the
certificate; and
(c) the ship has not been so materially altered in respect to the
matters set out in subparagraphs (a) and (b) of paragraph (3) of Article
19 that the ship is manifestly unfit to proceed to sea without danger to
human life.
If there is a valid International Load Line Exemption Certificate on
board, such control shall be limited to the purpose of determining that
any conditions stipulated in that certificate are complied with.
(2) If such control is exercised under sub-paragraph (c) of paragraph
(1) of this Article, it shall only be exercised in so far as may be
necessary to ensure that the ship shall not sail until it can proceed to
sea without danger to the passengers or the crew.
(3) In the event of the control provided for in this Article giving
rise to intervention of any kind, the officer carrying out the control
shall immediately inform in writing the Consul or the diplomatic
representative of the State whose flag the ship is flying of this decision
and of all the circumstances in which intervention was deemed to be
necessary.
ARTICLE 22 Privileges
The privileges of the present Convention may not be claimed in favour
of any ship unless it holds a valid certificate under the Convention.
ARTICLE 23 Casualties
(1) Each Administration undertakes to conduct an investigation of any
casualty occurring to ships for which it is responsible and which are
subject to the provisions of the present Convention when it judges that
such an investigation may assist in determining what changes in the
Convention might be desirable.
(2) Each Contracting Government undertakes to supply the Organization
with the pertinent information concerning the findings of such
investigations. No reports or recommendations of the Organization based
upon such information shall disclose the identity or nationality of the
ships concerned or in any manner fix or imply responsibility upon any ship
or person.
ARTICLE 24 Prior Treaties and Conventions
(1) All other treaties, conventions and arrangements relating to load
line matters at present in force between Governments parties to the
present Convention shall continue to have full and complete effect during
the terms thereof as regards:
(a) ships to which the present Convention does not apply; and
(b) ships to which the present Convention applies, in respect of
matters for which it has not expressly provided.
(2) To the extent, however, that such treaties, conventions or
arrangements conflict with the provisions of the present Convention, the
provisions of the present Convention shall prevail.
ARTICLE 25 Special Rules Drawn up by Agreement
When in accordance with the present Convention special rules are drawn
up by agreement among all or some of the Contracting Governments, such
rules shall be communicated to the Organization for circulation to all
Contracting Governments.
ARTICLE 26 Communication of Information
(1) The Contracting Governments undertake to communicate to and
deposit with the Organization:
(a) a sufficient number of specimens of their certificates issued
under the provisions of the present Convention for circulation to the
Contracting Governments;
(b) the text of the laws, decrees, orders, regulations and other
instruments which shall have been promulgated on the various matters
within the scope of the present Convention; and
(c) a list of non-governmental agencies which are authorized to
act in their behalf in the administration of load line matters for
circulation to the Contracting Governments.
(2) Each Contracting Government agrees to make its strength standards
available to any other Contracting Government, upon request.
ARTICLE 27 Signature, Acceptance and Accession
(1) The present Convention shall remain open for signature for three
months from 5 April 1966 and shall thereafter remain open for accession.
Governments of States members of the United Nations, or of any of the
Specialized Agencies, or of the International Atomic Energy Agency, or
parties to the Statute of the International Court of Justice may become
parties to the Convention by:
(a) signature without reservation as to acceptance;
(b) signature subject to acceptance followed by acceptance; or
(c) accession.
(2) Acceptance or accession shall be effected by the deposit of an
instrument of acceptance or accession with the Organization which shall
inform all Governments that have signed the Convention or acceded to it of
each new acceptance or accession and of the date of its deposit.
ARTICLE 28 Coming into Force
(1) The present Convention shall come into force twelve months after
the date on which not less than fifteen Governments of the States,
including seven each with not less than one million gross tons of
shipping, have signed without reservation as to acceptance or deposited
instruments of acceptance or accession in accordance with Article 27. The
Organization shall inform all Governments which have signed or acceded to
the present Convention of the date on which it comes into force.
(2) For Governments which have deposited an instrument of acceptance
of or accession to the present Convention during the twelve months
mentioned in paragraph (1) of this Article, the acceptance or accession
shall take effect on the coming into force of the present Convention or
three months after the date of deposit of the instrument of acceptance or
accession, whichever is the later date.
(3) For Governments which have deposited an instrument of acceptance
of or accession to the present Convention after the date on which it comes
into force, the Convention shall come into force three months after the
date of the deposit of such instrument.
(4) After the date on which all the measures required to bring an
amendment to the present Convention into force have been completed, or all
necessary acceptances are deemed to have been given under sub-paragraph
(b) of paragraph (2) of Article 29 in case of amendment by unanimous
acceptance, any instrument of acceptance or accession deposited shall be
deemed to apply to the Convention as amended.
ARTICLE 29 Amendments
(1) The present Convention may be amended upon the proposal of a
Contracting Government by any of the procedures specified in this Article.
(2) Amendment by unanimous acceptance
(a) Upon the request of a Contracting Government, any amendment
proposed by it to the present Convention shall be communicated by the
Organization to all Contracting Governments for consideration with a view
to unanimous acceptance.
(b) Any such amendment shall enter into force twelve months after
the date of its acceptance by all Contracting Governments unless an
earlier date is agreed upon. A Contracting Government which does not
communicate its acceptance or rejection of the amendment to the
Organization within three years of its first communication by the latter
shall be deemed to have accepted the amendment.
(c) Any proposed amendment shall be deemed to be rejected if it is
not accepted under sub-paragraph (b) of the present paragraph within three
years after it has been first communicated to all Contracting Governments
by the Organization.
(3) Amendment after consideration in the Organization
(a) Upon the request of a Contracting Government, any amendment
proposed by it to the present Convention will be considered in the
Organization. If adopted by a majority of two-thirds of those present and
voting in the Maritime Safety Committee of the Organization, such
amendment shall be communicated to all Members of the Organization and all
Contracting Governments at least six months prior to its consideration by
the Assembly of the Organization.
(b) If adopted by a two-thirds majority of those present and
voting in the Assembly, the amendment shall be communicated by the
Organization to all Contracting Governments for their acceptance.
(c) Such amendment shall come into force twelve months after the
date on which it is accepted by two-thirds of the Contracting Governments.
The amendment shall come into force with respect to all Contracting
Governments except those which, before it comes into force, make a
declaration that they do not accept the amendment.
(d) The Assembly, by a two-thirds majority of those present and
voting, including two-thirds of the Governments represented on the
Maritime Safety Committee and present and voting in the Assembly, may
propose a determination at the time of its adoption that an amendment is
of such an important nature that any Contracting Government which makes a
declaration under sub-paragraph (c), and which does not accept the
amendment within a period of twelve months after it comes into force,
shall cease to be a party to the present Convention upon the expiry of
that period. This determination shall be subject to the prior acceptance
of two-thirds of the Contracting Governments to the present Convention.
(e) Nothing in this paragraph shall prevent the Contracting
Government which first proposed action under this paragraph on an
amendment to the present Convention from taking at any time such
alternative action as it deems desirable in accordance with paragraph (2)
or (4) of this Article.
(4) Amendment by a conference
(a) Upon the request of a Contracting Government, concurred in by
at least one-third of the Contracting Governments, a conference of
Governments will be convened by the Organization to consider amendments to
the present Convention.
(b) Every amendment adopted by such a conference by a two-thirds
majority of those present and voting of the Contracting Governments shall
be communicated by the Organization to all Contracting Governments for
their acceptance.
(c) Such amendment shall come into force twelve months after the
date on which it is accepted by two-thirds of the Contracting Governments.
The amendment shall come into force with respect to all Contracting
Governments except those which, before it comes into force, make a
declaration that they do not accept the amendment.
(d) By a two-thirds majority of those present and voting, a
conference convened under sub-paragraph (a) may determine at the time of
its adoption that an amendment is of such an important nature that any
Contracting Government which makes a declaration under subparagraph (c),
and which does not accept the amendment within a period of twelve months
after it comes into force, shall cease to be a party to the present
Convention upon the expiry of that period.
(5) Any amendments to the present Convention made under this Article
which relate to the structure of a ship shall apply only to ships the
keels of which are laid, or which are at a similar stage of construction,
on or after the date on which the amendment comes into force.
(6) The Organization shall inform all Contracting Governments of any
amendments which come into force under this Article, together with the
date on which each such amendment will come into force.
(7) Any acceptance or declaration under this Article shall be made by
a notification in writing to the Organization which shall notify all
Contracting Governments of the receipt of the acceptance or declaration.
ARTICLE 30 Denunciation
(1) The present Convention may be denounced by any Contracting
Government at any time after the expiry of five years from the date on
which the Convention comes into force for that Government.
(2) Denunciation shall be effected by a notification in writing
addressed to the Organization which shall inform all the other Contracting
Governments of any such notification received and of the date of its
receipt.
(3) A denunciation shall take effect one year, or such longer period
as may be specified in the notification, after its receipt by the
Organization.
ARTICLE 31 Suspension
(1) In case of hostilities or other extraordinary circumstances which
affect the vital interests of a State the Government of which is a
Contracting Government, that Government may suspend the operation of the
whole or any part of the present Convention. The suspending Government
shall immediately give notice of any such suspension to the Organization.
(2) Such suspension shall not deprive other Contracting Governments of
any right of control under the present Convention over the ships of the
suspending Government when such ships are within their ports.
(3) The suspending Government may at any time terminate such
suspension and shall immediately give notice of such termination to the
Organization.
(4) The Organization shall notify all Contracting Governments of any
suspension or termination of suspension under this Article.
ARTICLE 32 Territories
(1) (a) The United Nations, in cases where they are the administering
authority for a territory, or any Contracting Government responsible for
the international relations of a territory, shall as soon as possible
consult with such territory in an endeavour to extend the present
Convention to that territory and may at any time by notification in
writing to the Organization declare that the present Convention shall
extend to such territory.
(b) The present Convention shall, from the date of the receipt of
the notification or from such other date as may be specified in the
notification, extend to the territory named therein.
(2) (a) The United Nations, or any Contracting Government which has
made a declaration under sub-paragraph (a) of paragraph (1) of this
Article, at any time after the expiry of a period of five years from the
date on which the Convention has been so extended to any territory, may by
notification in writing to the Organization declare that the present
Convention shall cease to extend to any such territory named in the
notification.
(b) The present Convention shall cease to extend to any territory
mentioned in such notification one year, or such longer period as may be
specified therein, after the date of receipt of the notification by the
Organization.
(3) The Organization shall inform all the Contracting Governments of
the extension of the present Convention to any territories under paragraph
(1) of this Article, and of the termination of any such extension under
the provisions of paragraph (2), stating in each case the date from which
the present Convention has been or will cease to be so extended.
ARTICLE 33 Registration
(1) The present Convention shall be deposited with the Organization
and the Secretary-General of the Organization shall transmit certified
true copies thereof to all Signatory Governments and to all Governments
which accede to the present Convention.
(2) As soon as the present Convention comes into force it shall be
registered by the Organization in accordance with Article 102 of the
Charter of the United Nations.
ARTICLE 34 Languages
The present Convention is established in a single copy in the English
and French languages, both texts being equally authentic. Official
translations in the Russian and Spanish languages shall be prepared and
deposited with the signed original.
IN WITNESS WHEREOF the undersigned * being duly authorized by their
respective Governments for that purpose have signed the present
Convention.
[* Signature omitted.]
DONE at London this fifth day of April 1966.
ANNEX I: REGULATIONS FOR DETERMINING LOAD LINES
CHAPTER I GENERAL
The Regulations assume that the nature and stowage of the cargo,
ballast, etc., are such as to secure sufficient stability of the ship and
the avoidance of excessive structural stress.
The Regulations also assume that where there are international
requirements relating to stability or subdivision, these requirements have
been complied with.
REGULATION 1 Strength of Hull
The Administration shall satisfy itself that the general structural
strength of the hull is sufficient for the draught corresponding to the
freeboard assigned. Ships built and maintained in conformity with the
requirements of a classification society recognized by the Administration
may be considered to possess adequate strength.
REGULATION 2 Application
(1) Ships with mechanical means of propulsion or lighters, barges or
other ships without independent means of propulsion, shall be assigned
freeboards in accordance with the provisions of Regulations 1-40 inclusive
of this Annex.
(2) Ships carrying timber deck cargoes may be assigned, in addition to
the freeboards prescribed in paragraph (1) of this Regulation, timber
freeboards in accordance with the provisions of Regulations 41-45 of this
Annex.
(3) Ships designed to carry sail, whether as the sole means of
propulsion or as a supplementary means, and tugs, shall be assigned
freeboards in accordance with the provisions of Regulations 1-40 inclusive
of this Annex. Such additional freeboard shall be required as determined
by the Administration.
(4) Ships of wood or of composite construction, or of other materials
the use of which the Administration has approved, or ships whose
constructional features are such as to render the application of the
provisions of this Annex unreasonable or impracticable, shall be assigned
freeboards as determined by the Administration.
(5) Regulations 10 to 26 inclusive of this Annex shall apply to every
ship to which a minimum freeboard is assigned. Relaxations from these
requirements may be granted to a ship to which a greater than minimum
freeboard is assigned on condition that the Administration is satisfied
with the safety conditions provided.
REGULATION 3 Definitions of Terms used in the Annexes
(1) Length. The length (L) shall be taken as 96 per cent of the total
length on a waterline at 85 per cent of the least moulded depth measured
from the top of the keel, or as the length from the fore side of the stem
to the axis of the rudder stock on that waterline, if that be greater. In
ships designed with a rake of keel the waterline on which this length is
measured shall be parallel to the designed waterline.
(2) Perpendiculars. The forward and after perpendiculars shall be
taken at the forward and after ends of the length (L). The forward
perpendicular shall coincide with the foreside of the stem on the
waterline on which the length is measured.
(3) Amidships. Amidships is at the middle of the length (L).
(4) Breadth. Unless expressly provided otherwise, the breadth (B) is
the maximum breadth of the ship, measured amidships to the moulded line of
the frame in a ship with a metal shell and to the outer surface of the
hull in a ship with a shell of any other material.
(5) Moulded Depth
(a) The moulded depth is the vertical distance measured from the
top of the keel to the top of the freeboard deck beam at side. In wood and
composite ships the distance is measured from the lower edge of the keel
rabbet. Where the from at the lower part of the midship section is of a
hollow character, or where thick garboards are fitted, the distance is
measured from the point where the line of the flat of the bottom continued
inwards cuts the side of the keel.
(b) In ships having rounded gunwales, the moulded depth shall be
measured to the point of intersection of the moulded lines of the deck and
side shell plating, the lines extending as though the gunwale were of
angular design.
(c) Where the freeboard deck is stepped and the raised part of the
deck extends over the point at which the moulded depth is to be
determined, the moulded depth shall be measured to a line of reference
extending from the lower part of the deck along a line parallel with the
raised part.
(6) Depth for Freeboard (D)
(a) The depth for freeboard (D) is the moulded depth amidships,
plus the thickness of the freeboard deck stringer plate, where fitted,
|--|
| T(L-S) |
where fitted, plus | --- | if the exposed free board deck is sheathed,
| L |
|--|
where
T is the mean thickness of the exposed sheathing clear of deck
openings, and
S is the total length of superstructures as defined in sub-paragraph
(10) (d) of this Regulation.
(b) The depth for freeboard (D) in a ship having a rounded gunwale
with a radius greater than 4 per cent of the breadth (B) or having
topsides of unusual form is the depth for freeboard of a ship having a
midship section with vertical topsides and with the same round of beam and
area of topside section equal to that provided by the actual midship
section. |---|
(7) Block Coefficient. The block coefficient | (C ) | is given by
| b |
section. |---|
|-----|
| ¡÷ |
| C = ---; | where
| b |
| L¡¤B¡¤d |
| 1 |
|-----|
¡÷ is the volume of the moulded displacement of the ship, excluding
bossing, in a ship with a metal shell, and is the volume of displacement
to the outer surface of the hull in a ship with a shell of any other
|--|
material, both taken at a moulded draught of | d | ; and where
| 1 |
|--|
|--|
| d | is 85 per cent of the least moulded depth.
| 1 |
|--|
(8) Freeboard. The freeboard assigned is the distance measured
vertically downwards amidships from the upper edge of the deck line to the
upper edge of the related load line.
(9) Freeboard Deck. The freeboard deck is normally the uppermost
complete deck exposed to weather and sea, which has permanent means of
closing all openings in the weather part thereof, and below which all
openings in the sides of the ship are fitted with permanent means of
watertight closing. In a ship having a discontinuous freeboard deck, the
lowest line of the exposed deck and the continuation of that line parallel
to the upper part of the deck is taken as the freeboard deck. At the
option of the owner and subject to the approval of the Administration, a
lower deck may be designated as the freeboard deck, provided it is a
complete and permanent deck continuous in a fore and aft direction at
least between the machinery space and peak bulkheads and continuous
athwartships. When this lower deck is stepped the lowest line of the deck
and the continuation of that line parallel to the upper part of the deck
is taken as the freeboard deck. When a lower deck is designated as the
freeboard deck, that part of the hull which extends above the freeboard
deck is treated as a superstructure so far as concerns the application of
the conditions of assignment and the calculation of freeboard. It is from
this deck that the freeboard is calculated.
(10) Superstructure
(a) A superstructure is a decked structure on the freeboard deck,
extending from side to side of the ship or with the side plating not being
inboard of the shell plating more than 4 per cent of the breadth (B). A
raised quarter-deck is regarded as a superstructure.
(b) An enclosed superstructure is a superstructure with:
(i) enclosing bulkheads of efficient construction;
(ii) access openings, if any, in these bulkheads fitted with
doors complying with the requirements of Regulation 12;
(iii) all other openings in sides or ends of the
superstructure fitted with efficient weathertight means of closing.
A bridge or poop shall not be regarded as enclosed unless
access is provided for the crew to reach machinery and other working
spaces inside these superstructures by alternative means which are
available at all times when bulkhead openings are closed.
(c) The height of a superstructure is the least vertical height
measured at side from the top of the superstructure deck beams to the top
of the freeboard deck beams.
(d) The length of a superstructure (S) is the mean length of the
part of the superstructure which lies within the length (L).
(11) Flush Deck Ship. A flush deck ship is one which has no
superstructure on the freeboard deck.
(12) Weathertight. Weathertight means that in any sea conditions water
will not penetrate into the ship.
REGULATION 4 Deck Line
The deck line is a horizontal line 300 millimetres (12 inches) in
length and 25 millimetres (1 inch) in breadth. It shall be marked
amidships on each side of the ship, and its upper edge shall normally pass
through the point where the continuation outwards of the upper surface of
the freeboard deck intersects the outer surface of the shell (as
illustrated in Figure 1), provided that the deck line may be placed with
reference to another fixed point on the ship on condition that the
freeboard is correspondingly corrected. The location of the reference
point and the identification of the freeboard deck shall in all cases be
indicated on the International Load Line Certificate (1966).
REGULATION 5 Load Line Mark
The Load Line Mark shall consist of a ring 300 millimetres (12 inches)
in outside diameter and 25 millimetres (1 inch) wide which is intersected
by a horizontal line 450 millimetres (18 inches) in length and 25
millimetres (1 inch) in breadth, the upper edge of which passes through
the centre of the ring. The centre of the ring shall be placed amidships
and at a distance equal to the assigned summer freeboard measured
vertically below the upper edge of the deck line (as illustrated in Figure
2).
REGULATION 6 Lines to be used with the Load Line Mark
(1) The lines which indicate the load line assigned in accordance with
these Regulations shall be horizontal lines 230 millimetres (9 inches) in
length and 25 millimetres (1 inch) in breadth which extend forward of,
unless expressly provided otherwise, and at right angles to, a vertical
line 25 millimetres (1 inch) in breadth marked at a distance 540
millimetres (21 inches) forward of the centre of the ring (as illustrated
in Figure 2).
(2) The following load lines shall be used:
(a) The Summer Load Line indicated by the upper edge of the line
which passes through the centre of the ring and also by a line marked S.
(b) The Winter Load Line indicated by the upper edge of a line
marked W.
(c) The Winter North Atlantic Load Line indicated by the upper
edge of a line marked WNA.
(d) The Tropical Load Line indicated by the upper edge of a line
marked T.
(e) The Fresh Water Load Line in summer indicated by the upper
edge of a line marked F. The Fresh Water Load Line in summer is marked
abaft the vertical line. The difference between the Fresh Water Load Line
in summer and the Summer Load Line is the allowance to be made for loading
in fresh water at the other load lines.
(f) The Tropical Fresh Water Load Line indicated by the upper edge
of a line marked TF, and marked abaft the vertical line.
(3) If timber freeboards are assigned in accordance with these
Regulations, the timber load lines shall be marked in addition to ordinary
load lines. These lines shall be horizontal lines 230 millimetres (9
inches) in length and 25 millimetres (1 inch) in breadth which extend
abaft unless expressly provided otherwise, and are at right angles to, a
vertical line 25 millimetres (1 inch) in breadth marked at a distance 540
millimetres (21 inches) abaft the centre of the ring (as illustrated in
Figure 3).
(4) The following timber load lines shall be used:
(a) The Summer Timber Load Line indicated by the upper edge of a
line marked LS.
(b) The Winter Timber Load Line indicated by the upper edge of a
line marked LW.
(c) The Winter North Atlantic Timber Load Line indicated by the
upper edge of a line marked LWNA.
(d) The Tropical Timber Load Line indicated by the upper edge of a
line marked LT.
(e) The Fresh Water Timber Load Line in summer indicated by the
upper edge of a line marked LF and marked forward of the vertical line.
The difference between the Fresh Water Timber
Load Line in summer and the Summer Timber Load Line is the
allowance to be made for loading in fresh water at the other timber load
lines.
(f) The Fresh Water Timber Load Line in the Tropical Zone
indicated by the upper edge of a line marked LTF and marked forward of the
vertical line.
(5) Where the characteristics of a ship or the nature of the ship's
service or navigational limits make any of the seasonal lines
inapplicable, these lines may be omitted.
(6) Where a ship is assigned a greater than minimum freeboard so that
the load line is marked at a position corresponding to, or lower than, the
lowest seasonal load line assigned at minimum freeboard in accordance with
the present Convention, only the Fresh Water Load Line need be marked.
(7) On sailing ships only the Fresh Water Load Line and the Winter
North Atlantic Load Line need be marked (as illustrated in Figure 4).
(8) Where a Winter North Atlantic Load Line is identical with the
Winter Load Line corresponding to the same vertical line, this load line
shall be marked W.
(9) Additional load lines required by other international conventions
in force may be marked at right angles to and abaft the vertical line
specified in paragraph (1) of this Regulation.
REGULATION 7 Mark of Assigning Authority
The mark of the Authority by whom the load lines are assigned may be
indicated alongside the load line ring above the horizontal line which
passes through the centre of the ring, or above and below it. This mark
shall consist of not more than four initials to identify the Arthority's
name, each measuring approximately 115 millimetres (4.5 inches) in height
and 75 millimetres (3 inches) in width.
REGULATION 8 Details of Marking
The ring, lines and letters shall be painted in white or yellow on a
dark ground or in black on a light ground. They shall also be permanently
marked on the sides of the ships to the satisfaction of the
Administration. The marks shall be plainly visible and, if necessary,
special arrangements shall be made for this purpose.
REGULATION 9 Verification of Marks
The International Load Line Certificate (1966), shall not be delivered
to the ship until the officer or surveyor acting under the provisions of
Article 13 of the present Convention has certified that the marks are
correctly and permanently indicated on the ship's sides.
CHAPTER II CONDITIONS OF ASSIGNMENT OF FREEBOARD
REGULATION 10 Information to be Supplied to the Master
(1) The master of every new ship shall be supplied with sufficient
information, in an approved form, to enable him to arrange for the loading
and ballasting of his ship in such a way as to avoid the creation of any
unacceptable stresses in the ship's structure, provided that this
requirement need not apply to any particular length, design or class of
ship where the Administration consider it to be unnecessary.
(2) The master of every new ship which is not already provided with
stability information under an international convention for the safety of
life at sea in force shall be supplied with sufficient information in an
approved form to give him guidance as to the stability of the ship under
varying conditions of service, and a copy shall be furnished to the
Administration.
REGULATION 11 Superstructure End Bulkheads
Bulkheads at exposed ends of enclosed superstructures shall be of
efficient construction and shall be to the satisfaction of the
Administration.
REGULATION 12 Doors
(1) All access openings in bulkheads at ends of enclosed
superstructures shall be fitted with doors of steel or other equivalent
material, permanently and strongly attached to the bulkhead, and framed,
stiffened and fitted so that the whole structure is of equivalent strength
to the unpierced bulkhead and weathertight when closed. The means for
securing these doors weathertight shall consist of gaskets and clamping
devices or other equivalent means and shall be permanently attached to the
bulkhead or to the doors themselves, and the doors shall be so arranged
than they can be operated from both sides of the bulkhead.
(2) Except as otherwise provided in these Regulations, the height of
the sills of access openings in bulkheads at ends of enclosed
superstructures shall be at least 380 millimetres (15 inches) above the
deck.
REGULATION 13 Position of Hatchways, Doorways and Ventilators
For the purpose of the Regulations, two positions of hatchways,
doorways and ventilators are defined as follows:
Position 1-Upon exposed freeboard and raised quarter decks, and
upon exposed superstructure decks situated forward of a point located a
quarter of the ship's length from the forward perpendicular.
Position 2-Upon exposed superstructure decks situated abaft a
quarter of the ship's length from the forward perpendicular.
REGULATION 14 Cargo and other Hatchways
(1) The construction and the means for securing the weathertightness
of cargo and other hatchways in positions 1 and 2 shall be at least
equivalent to the requirements of Regulations 15 and 16 of this Annex.
(2) Coamings and hatchway covers to exposed hatchways on decks above
the superstructure deck shall comply with the requirements of the
Administration.
REGULATION 15 Hatchways Closed by Portable Covers and SecuredWeathertight by Tarpaulins and Battening Devices
Hatchway Coamings
(1) The coamings of hatchways closed by portable covers secured
weathertight by tarpaulins and battening devices shall be of substantial
construction, and their height above the deck shall be at least as
follows:
600 millimetres (23.5 inches) if in position 1.
450 millimetres (17.5 inches) if in position 2.
Hatchway Covers
(2) The width of each bearing surface for hatchway covers shall be at
least 65 millimetres (2.5 inches).
(3) Where covers are made of wood, the finished thickness shall be at
least 60 millimetres (2.375 inches) in association with a span of not more
than 1.5 metres (4.9 feet).
(4) Where covers are made of mild steel the strength shall be
calculated with assumed loads not less than 1.75 metric tons per square
metre (358 pounds per square foot) on hatchways in position 1, and not
less than 1.30 metric tons per square metre (266 pounds per square foot)
on hatchways in position 2, and the product of the maximum stress thus
calculated and the factor 4.25 shall not exceed the minimum ultimate
strength of the material. They shall be so designed as to limit the
deflection to not more than 0.0028 times the span under these loads.
(5) The assumed loads on hatchways in position 1 may be reduced to 1
metric ton per square metre (205 pounds per square foot) for ships 24
metres (79 feet) in length and shall be not less than 1.75 metric tons per
square metre (358 pounds per square foot) for ships 100 metres (328 feet)
in length. The corresponding loads on hatchways in position 2 may be
reduced to 0.75 metric tons per square metre (154 pounds per square foot)
and 1.30 metric tons per square metre (266 pounds per square foot)
respectively. In all cases values at intermediate lengths shall be
obtained by interpolation.
Portable Beams
(6) Where portable beams for supporting hatchway covers are made of
mild steel the strength shall be calculated with assumed loads not less
than 1.75 metric tons per square metre (358 pounds per square foot) on
hatchways in position 1 and not less than 1.30 metric tons per square
metre (266 pounds per square foot) on hatchways in position 2 and the
product of the maximum stress thus calculated and the factor 5 shall not
exceed the minimum ultimate strength of the material. They shall be so
designed as to limit the deflection to not more than 0.0022 times the span
under these loads. For ships of not more than 100 metres (328 feet) in
length the requirements of paragraph (5) of this Regulation shall be
applicable.
Pontoon Covers
(7) Where pontoon covers used in place of portable beams and covers
are made of mild steel the strength shall be calculated with the assumed
loads given in paragraph (4) of this Regulation, and the product of the
maximum stress thus calculated and the factor 5 shall not exceed the
minimum ultimate strength of the material. They shall be so designed as to
limit the deflection to not more than 0.0022 times the span. Mild steel
plating forming the tops of covers shall be not less in thickness than one
per cent of the spacing of stiffeners or 6 millimetres (0.24 inches) if
that be greater. For ships of not more than 100 metres (328 feet) in
length the requirements of paragraph (5) of this Regulation are
applicable.
(8) The strength and stiffness of covers made of materials other than
mild steel shall be equivalent to those of mild steel to the satisfaction
of the Administration.
Carriers or Sockets
(9) Carriers or sockets for portable beams shall be of substantial
construction, and shall provide means for the efficient fitting and
securing of the beams. Where rolling types of beams are used, the
arrangements shall ensure than the beams remain properly in position when
the hatchway is closed.
Cleats
(10) Cleats shall be set to fit the taper of the wedges. They shall be
at least 65 millimetres
(2.5 inches) wide and spaced not more than 600 millimetres (23.5 inches)
centre to centre; the cleats along each side or end shall be not more than
150 millimetres (6 inches) from the hatch corners.
Battens and Wedges
(11) Battens and wedges shall be efficient and in good condition.
Wedges shall be of tough wood or other equivalent material. They shall
have a taper of not more than 1 in 6 and shall be not less than 13
millimetres (.5 inch) thick at the toes.
Tarpaulins
(12) At least two layers of tarpaulin in good condition shall be
provided for each hatchway in position 1 or 2. The tarpaulins shall be
waterproof and of ample strength. They shall be of a material of at least
an approved standard weight and quality.
Security of hatchway Covers
(13) For all hatchways in position 1 or 2 steel bars or other
equivalent means shall be provided in order efficiently and independently
to secure each section of hatchway covers after the tarpaulins are
battened down. Hatchway covers of more than 1.5 metres (4.9 feet) in
length shall be secured by at least two such securing appliances.
REGULATION 16 Hatchways Closed by Weathertight Covers of Steel orOther Equivalent Material Fitted with Gas ketsand Clamping Devices
Hatchway Coamings
(1) At position 1 and 2 the height above the deck of hatchway coamings
fitted with weathertight hatch covers of steel or other equivalent
material fitted with gaskets and clamping devices shall be as specified in
Regulation 15 (1). The height of these coamings may be reduced, or the
coamings omitted entirely, on condition that the Administration is
satisfied that the safety of the ship is not thereby impaired in any sea
conditions. Where coamings are provided they shall be of substantial
construction.
Weathertight Covers
(2) Where weathertight covers are of mild steel the strength shall be
calculated with assumed loads not less than 1.75 metric tons per square
metre (358 pounds per square foot) on hatchways in position 1, and not
less than 1.30 metric tons per square metre (266 pounds per square foot)
on hatchways in position 2, and the product of the maximum stress thus
calculated and the factor of 4.25 shall not exceed the minimum ultimate
strength of the material. They shall be so designed as to limit the
deflection to not more than 0.0028 times the span under these loads. Mild
steel plating forming the tops of covers shall be not less in thickness
than one per cent of the spacing of stiffeners or 6 millimetres (0.24
inches) if that be greater. The provisions of Regulation 15 (5) are
applicable for ships of not more than 100 metres (328 feet) in length.
(3) The strength and stiffness of covers made of materials other than
mild steel shall be equivalent to those of mild steel to the satisfaction
of the Administration.
Means for Securing Weathertightness
(4) The means for securing and maintaining weathertightness shall be
to the satisfaction of the Administration. The arrangements shall ensure
that the tightness can be maintained in any sea conditions, and for this
purpose tests for tightness shall be required at the initial survey, and
may be required at periodical surveys and at annual inspections or at more
frequent intervals.
REGULATION 17 Machinery Space Openings
(1) Machinery space openings in position 1 or 2 shall be properly
framed and efficiently enclosed by steel casings of ample strength, and
where the casings are not protected by other structures their strength
shall be specially considered. Access openings in such casings shall be
fitted with doors complying with the requirements of Regulation 12 (1),
the sills of which shall be at least 600 millimetres (23.5 inches) above
the deck if in position 1, and at least 380 millimetres (15 inches) above
the deck if in position 2. Other openings in such casings shall be fitted
with equivalent covers, permanently attached in their proper positions.
(2) Coamings of any fiddley, funnel or machinery space ventilator in
an exposed position on the freeboard or superstructure deck shall be as
high above the deck as is reasonable and practicable. Fiddley openings
shall be fitted with strong covers of steel or other equivalent material
permanently attached in their proper positions and capable of being
secured weathertight.
REGULATION 18 Miscellaneous Openings in Freeboard and Superstruc-ture Decks
(1) Manholes and flush scuttles in position 1 or 2 or within
superstructures other than enclosed superstructures shall be closed by
substantial covers capable of being made watertight. Unless secured by
closely spaced bolts, the covers shall be permanently attached.
(2) Openings in freeboard decks other than hatchways, machinery space
openings, manholes and flush scuttles shall be protected by an enclosed
superstructure, or by a deckhouse or companionway of equivalent strength
and weathertightness. Any such opening in an exposed superstructure deck
or in the top of a deckhouse on the freeboard deck which gives access to a
space below the freeboard deck or a space within an enclosed
superstructure shall be protected by an efficient deckhouse or
companionway. Doorways in such deckhouses or companionways shall be fitted
with doors complying with the requirements of Regulation 12 (1).
(3) In position 1 the height above the deck of sills to the doorways
in companionways shall be at least 600 millimetres (23.5 inches). In
position 2 they shall be at least 380 millimetres
(15 inches).
REGULATION 19 Ventilators
(1) Ventilators in position 1 or 2 to spaces below freeboard decks or
decks of enclosed superstructures shall have coamings of steel or other
equivalent material, substantially constructed and efficiently connected
to the deck. Where the coaming of any ventilator exceeds 900 millimetres
(35.5 inches) in height it shall be specially supported.
(2) Ventilators passing through superstructures other than enclosed
superstructures shall have substantially constructed coamings of steel or
other equivalent material at the freeboard deck.
(3) Ventilators in position 1 the coamings of which extend to more
than 4.5 metres (14.8 feet) above the deck, and in position 2 the coamings
of which extend to more than 2.3 metres (7.5 feet) above the deck, need
not be fitted with closing arrangements unless specifically required by
the Administration.
(4) Except as provided in paragraph (3) of this Regulation, ventilator
openings shall be provided with efficient weathertight closing appliances.
In ships of not more than 100 metres (328 feet) in length the closing
appliances shall be permanently attached; where not so provided in other
ships, they shall be conveniently stowed near the ventilators to which
they are to be fitted. Ventilators in position 1 shall have coamings of a
height of at least 900 millimetres (35.5 inches) above the deck; in
position 2 the coamings shall be of a height at least 760 millimetres
(30 inches) above the deck.
(5) In exposed positions, the height of coamings may be required to be
increased to the satisfaction of the Administration.
REGULATION 20 Air Pipes
Where air pipes to ballast and other tanks extend above the freeboard
or superstructure decks, the exposed parts of the pipes shall be of
substantial construction; the height from the deck to the point where
water may have access below shall be at least 760 millimetres (30 inches )
on the freeboard deck and 450 millimetres (17.5 inches) on the
superstructure deck. Where these heights may interfere with the working of
the ship, a lower height may be approved, provided the Administration is
satisfied that the closing arrangements and other circumstances justify a
lower height. Satisfactory means permanently attached, shall be provided
for closing the openings of the air pipes.
REGULATION 21 Cargo Ports and Other Similar Openings
(1) Cargo ports and other similar openings in the sides of ships below
the freeboard deck shall be fitted with doors so designed as to ensure
weathertightness and structural integrity commensurate with the
surrounding shell plating. The number of such openings shall be the
minimum compatible with the design and proper working of the ship.
(2) Unless permitted by the Administration, the lower edge of such
openings shall not be below a line drawn parallel to the freeboard deck at
side, which has at its lowest point the upper edge of the uppermost load
line.
REGULATION 22 Scuppers, Inlets and Discharges
(1) Discharges led through the shell either from spaces below the
freeboard deck or from within superstructures and deckhouses on the
freeboard deck fitted with doors complying with the requirements of
Regulation 12 shall be fitted with efficient and accessible means for
preventing water from passing inboard. Normally each separate discharge
shall have one automatic nonreturn valve with a positive means of closing
it from a position above the freeboard deck. Where, however, the vertical
distance from the summer load water line to the inboard end of the
discharge pipe exceeds 0.01 L, the discharge may have two automatic
non-return valves without positive means of closing, provided that the
inboard valve is always accessible for examination under service
conditions; where that vertical distance exceeds 0.02 L a single automatic
non-return valve without positive means of closing may be accepted subject
to the approval of the Administration. The means for operating the
positive action valve shall be readily accessible and provided with an
indicator showing whether the valve is open or closed.
(2) In manned machinery spaces main and auxiliary sea inlets and
discharges in connection with the operation of machinery may be controlled
locally. The controls shall be readily accessible and shall be provided
with indicators showing whether the valves are open or closed.
(3) Scuppers and discharge pipes originating at any level and
penetrating the shell either more than 450 millimetres (17.5 inches) below
the freeboard deck or less than 600 millimetres (23.5 inches) above the
summer load waterline shall be provided with a non-return valve at the
shell. This valve, unless required by paragraph (1), may be omitted if the
piping is of substantial thickness.
(4) Scuppers leading from superstructures or deckhouses not fitted
with doors complying with the requirements of Regulation 12 shall be led
overboard.
(5) All valves and shell fittings required by this Regulation shall be
of steel, bronze or other approved ductile material. Valves of ordinary
cast iron or similar material are not acceptable. All pipes to which this
Regulation refers shall be of steel or other equivalent material to the
satisfaction of the Administration.
REGULATION 23 Side Scuttles
(1) Side scuttles to spaces below the freeboard deck or to spaces
within enclosed superstructures shall be fitted with efficient hinged
inside deadlights arranged so that they can be effectively closed and
secured watertight.
(2) No side scuttle shall be fitted in a position so that its sill is
below a line drawn parallel to the freeboard deck at side and having its
lowest point 2.5 per cent of the breadth (B) above the load waterline, or
500 millimetres (19.5 inches), whichever is the greater distance.
(3) The side scuttles, together with their glasses, if fitted, and
deadlights, shall be of substantial and approved construction.
REGULATION 24 Freeing Ports
(1) Where bulwarks on the weather portions of freeboard or
superstructure decks form wells, ample provision shall be made for rapidly
freeing the decks of water and for draining them. Except as provided in
paragraphs (2) and (3) of this Regulation, the minimum freeing port area
(A) on each side of the ship for each well on the freeboard deck shall be
that given by the following formulae in cases where the sheer in way of
the well is standard or greater than standard. The minimum area for each
well on superstructure decks shall be one-half of the area given by the
formulae.
Where the length of bulwark (l) in the well is 20 metres or less
A=0.7+0.035 l (square metres)
Where l exceeds 20 metres
A=0.07 l (square metres)
l need in no case be taken as greater than 0.7L.
If the bulwark is more than 1.2 metres in average height the
required area shall be increased by 0.004 square metre per metre of length
of well for each 0.1 metre difference in height. If the bulwark is less
than 0.9 metre in average height, the required area may be decreased by
0.004 square metre per metre of length of well for each 0.1 metre
difference in height.
Or
Where the length of the bulwark (l) in the well is 66 feet or less
A=7.6+0.115 l (square feet)
Where l exceeds 66 feet
A=0.23 l (square feet)
l need in no case be taken as greater than 0.7L.
If the bulwark is more than 3.9 feet in average height the
required area shall be increased by 0.04 square feet per foot of length of
well for each foot difference in height. If the bulwark is less than 3
feet in average height, the required area may be decreased by 0.04 square
feet per foot of length for each foot difference in height.
(2) In ships with no sheer the calculated area shall be increased by
50 per cent. Where the sheer is less than the standard the percentage
shall be obtained by interpolation.
(3) Where a ship is fitted with a trunk which does not comply with the
requirements of Regulation 36 (1) (e) or where continuous or substantially
continuous hatchway side coamings are fitted between detached
superstructures the minimum area of the freeing port openings shall be
calculated from the following Table:
|-------------------
| Breadth of hatchway or | Area of freeing ports in |
| trunk in relation to | relation to the total |
| the breadth of ship | area of the bulwarks |
|--------|----------|
| |
| 40% or less | 20% |
| |
| 75% or more | 10% |
| |
|-------------------
The area of freeing ports at intermediate breadths shall be obtained by
linear interpolation.
(4) In ships having superstructures which are open at either or both
ends, adequate provision for freeing the space within such superstructures
shall be provided to the satisfaction of the Administration.
(5) The lower edges of the freeing ports shall be as near the deck as
practicable. Two-thirds of the freeing port area required shall be
provided in the half of the well nearest the lowest point of the sheer
curve.
(6) All such openings in the bulwarks shall be protected by rails or
bars spaced approximately 230 millimetres (9 inches) apart. If shutters
are fitted to freeing ports, ample clearance shall be provided to prevent
jamming. Hinges shall have pins or bearings of non-corrodible material. If
shutters are fitted with securing appliances, these appliances shall be of
approved construction.
REGULATION 25 Protection of the Crew
(1) The strength of the deckhouses used for the accommodation of the
crew shall be to the satisfaction of the Administration.
(2) Efficient guard rails or bulwarks shall be fitted on all exposed
parts of the freeboard and superstructure decks. The height of the
bulwarks or guard rails shall be at least 1 metre (39.5 inches) from the
deck, provided that where this height would interfere with the normal
operation of the ship, a lesser height may be approved if the
Administration is satisfied that adequate protection is provided.
(3) The opening below the lowest course of the guard rails shall not
exceed 230 millimetres (9 inches). The other courses shall be not more
than 380 millimetres (15 inches) apart. In the case of ships with rounded
gunwales the guard rail supports shall be placed on the flat of the deck.
(4) Satisfactory means (in the form of guard rails, life lines,
gangways or underdeck passages, etc.), shall be provided for the
protection of the crew in getting to and from their quarters, the
machinery space and all other parts used in the necessary work of the
ship.
(5) Deck cargo carried on any ship shall be so stowed that any opening
which is in way of the cargo and which gives access to and from the crew's
quarters, the machinery space and all other parts used in the necessary
work of the ship, can be properly closed and secured against the admission
of water. Effective protection for the crew in the form of guard rails or
life lines shall be provided above the deck cargo if there is no
convenient passage on or below the deck of the ship.
REGULATION 26 Special Conditions of Assignment for Type `A' Ships
Machinery Casings
(1) Machinery casings on Type `A' ships as defined in Regulation 27
shall be protected by an enclosed poop or bridge of at least standard
height, or by a deckhouse of equal height and equivalent strength,
provided that machinery casings may be exposed if there are no openings
giving direct access from the freeboard deck to the machinery space. A
door complying with the requirements of Regulation 12 may, however, be
permitted in the machinery casing, provided that it leads to a space or
passageway which is as strongly constructed as the casing and is separated
from the stairway to the engine room by a second weathertight door of
steel or other equivalent material.
Gangway and Access
(2) An efficiently constructed fore and aft permanent gangway of
sufficient strength shall be fitted on Type `A' ships at the level of the
superstructure deck between the poop and the midship bridge or deckhouse
where fitted, or equivalent means of access shall be provided to carry out
the purpose of the gangway, such as passages below deck. Elsewhere, and on
Type `A' ships without a midship bridge, arrangements to the satisfaction
of the Administration shall be provided to safeguard the crew in reaching
all parts used in the necessary work of the ship.
(3) Safe and satisfactory access from the gangway level shall be
available between separate crew accommodations and also between crew
accommodations and the machinery space.
Hatchways
(4) Exposed hatchways on the freeboard and forecastle decks or on the
tops of expansion trunks on Type `A' ships shall be provided with
efficient watertight covers of steel or other equivalent material.
Freeing Arrangements
(5) Type `A' ships with bulwarks shall have open rails fitted for at
least half the length of the exposed parts of the weather deck or other
effective freeing arrangements. The upper edge of the sheer strake shall
be kept as low as practicable.
(6) Where superstructures are connected by trunks, open rails shall be
fitted for the whole length of the exposed parts of the freeboard deck.
CHAPTER III FREEBOARDS
REGULATION 27 Types of Ships
(1) For the purposes of freeboard computation ships shall be divided
into Type `A' and Type `B'.
Type `A' Ships
(2) A type `A' ship is one which is designed to carry only liquid
cargoes in bulk, and in which cargo tanks have only small access openings
closed by watertight gasketed covers of steel or equivalent material. Such
a ship necessarily has the following inherent features:
(a) high integrity of the exposed deck; and
(b) high degree of safety against flooding, resulting from the low
permeability of loaded cargo spaces and the degree of sub-division usually
provided.
(3) A type `A' ship, if over 150 metres (492 feet) in length, and
designed to have empty compartments when loaded to her summer load water
line, shall be able to withstand the flooding of any one of these empty
compartments at an assumed permeability of 0.95, and remain afloat in a
condition of equilibrium considered to be satisfactory by the
Administration. In such a ship, over 225 metres (738 feet) in length, the
machinery space shall be treated as a floodable compartment but with a
permeability of 0.85.
For the guidance of Administrations the following limits may be
regarded as satisfactory:
(a) The final water line after flooding is below the lower edge of
any opening through which progressive flooding may take place.
(b) The maximum angle of heel due to unsymmetrical flooding is of
the order of 15 ¡ã.
(c) The metacentric height in the flooded condition is positive.
(4) A Type `A' ship shall be assigned a freeboard not less than that
based on Table A of Regulation 28.
Type `B' Ships
(5) All ships which do not come within the provisions regarding Type
`A' ships in paragraphs (2) and (3) of this Regulation shall be considered
as Type `B' ships.
(6) Type `B' ships, which in position 1 have hatchways fitted with
hatch covers complying with the requirements of Regulations 15 (7) or 16
shall, except as provided in paragraphs (7) to (10) inclusive of this
Regulation, be assigned freeboards based on Table B of Regulation 28.
(7) Any Type `B' ships of over 100 metres (328 feet) in length may be
assigned freeboards less than those required under paragraph (6) of this
Regulation provided that, in relation to the amount of reduction granted,
the Administration is satisfied that:
(a) the measures provided for the protection of the crew are
adequate;
(b) the freeing arrangements are adequate;
(c) the covers in positions 1 and 2 comply with the provisions of
Regulation 16 and have adequate strength; special care being given to
their sealing and securing arrangements;
(d) the ship, when loaded to her summer load water line, will
remain afloat in a satisfactory condition of equilibrium after flooding of
any single damaged compartment at an assumed permeability of 0.95
excluding the machinery space; and
(e) in such a ship, over 225 metres (738 feet) in length, the
machinery space shall be treated as a floodable compartment but with a
permeability of 0.85.
For the guidance of Administrations in applying sub-paragraphs (d) and
(e) of this paragraph the limits given in sub-paragraphs (3) (a), (b) and
(c) may be regarded as satisfactory.
The relevant calculations may be based upon the following main
assumptions:
-the vertical extent of damage is equal to the depth of the ship;
-the penetration of damage is not more than B/5;
-no main transverse bulkhead is damaged;
-the height of the centre of gravity above the base line is
assessed allowing for homogeneous loading of cargo holds, and for 50 per
cent of the designed capacity of consumable fluids and stores, etc.
(8) In calculating the freeboards for Type `B' ships which comply with
the requirements of paragraph (7) of this Regulation, the values from
Table B of Regulation 28 shall not be reduced by more than 60 per cent of
the difference between the `B' and `A' tabular values for the appropriate
ship lengths.
TABLE FREEBOARD INCREASE OVER TABULAR FREEBOARD FOR TYPE `B'SHIPS, FOR SHIPS WITH HATCH COVERS NOT COMPLYING WITH REGULATIONS 15 (7)OR 16
|---------------------------
| Length of | Freeboard | Length of | Freeboard | Length of | Freeboard |
| ship | increase | ship | increase | ship | increase |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 108 | 50 | 139 | 175 | 170 | 290 |
| and below | | |
| 109 | 52 | 140 | 181 | 171 | 292 |
| 110 | 55 | 141 | 186 | 172 | 294 |
| 111 | 57 | 142 | 191 | 173 | 297 |
| 112 | 59 | 143 | 196 | 174 | 299 |
| 113 | 62 | 144 | 201 | 175 | 301 |
| 114 | 64 | 145 | 206 | 176 | 304 |
| 115 | 68 | 146 | 210 | 177 | 306 |
| 116 | 70 | 147 | 215 | 178 | 308 |
| 117 | 73 | 148 | 219 | 179 | 311 |
| 118 | 76 | 149 | 224 | 180 | 313 |
| 119 | 80 | 150 | 228 | 181 | 315 |
| 120 | 84 | 151 | 232 | 182 | 318 |
|---------------------------
|---------------------------
| 121 | 87 | 152 | 236 | 183 | 320 |
| 122 | 91 | 153 | 240 | 184 | 322 |
| 123 | 95 | 154 | 244 | 185 | 325 |
| 124 | 99 | 155 | 247 | 186 | 327 |
| 125 | 103 | 156 | 251 | 187 | 329 |
| 126 | 108 | 157 | 254 | 188 | 332 |
| 127 | 112 | 158 | 258 | 189 | 334 |
| 128 | 116 | 159 | 261 | 190 | 336 |
| 129 | 121 | 160 | 264 | 191 | 339 |
| 130 | 126 | 161 | 267 | 192 | 341 |
| 131 | 131 | 162 | 270 | 193 | 343 |
| 132 | 136 | 163 | 273 | 194 | 346 |
| 133 | 142 | 164 | 275 | 195 | 348 |
| 134 | 147 | 165 | 278 | 196 | 350 |
| 135 | 153 | 166 | 280 | 197 | 353 |
| 136 | 159 | 167 | 283 | 198 | 355 |
| 137 | 164 | 168 | 285 | 199 | 357 |
| 138 | 170 | 169 | 287 | 200 | 358 |
|---------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation. Ships above 200 metres in length shall be dealt with
by the Administrations.
(9) The reduction in tabular freeboard allowed under paragraph (8) of
this Regulation may be increased up to the total difference between the
values in Table A and those in Table B of Regulation 28 on condition that
the ship complies with the requirements of Regulation 26 (1), (2), (3),
(5) and (6), as if it were a type `A' ship, and further complies with the
provisions of paragraph 7 (a) to (d) inclusive of this Regulation except
that the reference in subparagraph (d) to the flooding of any single
damaged compartment shall be treated as a reference to the flooding of any
two adjacent fore and aft compartments, neither of which is the machinery
space. Also any such ship of over 225 metres (738 feet) in length, when
loaded to her summer load water line, shall remain afloat in a
satisfactory condition of equilibrium after flooding of the machinery
space, taken alone, at an assumed permeability of 0.85.
(10) Type `B' ships, which in position 1 have hatchways fitted with
hatch covers which comply with the requirements of Regulation 15, other
than paragraph (7), shall be assigned freeboards based upon the values
given in Table B of Regulation 28 increased by the values given in the
following table:
(11) A lighter, barge or other ship without independent means of
propulsion shall be assigned a freeboard in accordance with the provisions
of these Regulations. However, in the case of barges which are unmanned
the requirements of Regulations 25, 26 (2) and (3) and 39 shall not apply.
Such unmanned barges which have on the freeboard deck only small access
openings closed by weathertight gasketed covers of steel or equivalent
material may be assigned freeboards 25 per cent less than those calculated
in accordance with these Regulations.
TABLE FREEBOARD INCREASE OVER TABULAR FREEBOARD FOR TYPE `B'SHIPS, FOR SHIPS WITH HATCH COVERS NOT COMPLYING WITH REGULATIONS 15 (7)OR 16
|-------------------
| Length of | Freeboard | Length of | Freeboard |
| ship | increase | ship | increase |
| (feet) | (inches) | (feet) | (inches) |
|----|-----|----|-----|
| 350 | 2.0 | 510 | 9.6 |
| and below | |
| 360 | 2.3 | 520 | 10.0 |
| 370 | 2.6 | 530 | 10.4 |
| 380 | 2.9 | 540 | 10.7 |
| 390 | 3.3 | 550 | 11.0 |
| 400 | 3.7 | 560 | 11.4 |
| 410 | 4.2 | 570 | 11.8 |
| 420 | 4.7 | 580 | 12.1 |
| 430 | 5.2 | 590 | 12.5 |
| 440 | 5.8 | 600 | 12.8 |
| 450 | 6.4 | 610 | 13.1 |
| 460 | 7.0 | 620 | 13.4 |
| 470 | 7.6 | 630 | 13.6 |
| 480 | 8.2 | 640 | 13.9 |
| 490 | 8.7 | 650 | 14.1 |
| 500 | 9.2 | 660 | 14.3 |
|-------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation. Ships above 660 feet in length shall be dealt with
by the Administrations.
REGULATION 28 Freeboard Tables
Type `A' ships
(1) The tabular freeboard for type `A' ships shall be determined from
the following table:
TABLE A FREEBOARD TABLE FOR TYPE `A' SHIPS
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 24 | 200 | 49 | 432 | 74 | 760 |
| 25 | 208 | 50 | 443 | 75 | 773 |
| 26 | 217 | 51 | 455 | 76 | 786 |
| 27 | 225 | 52 | 467 | 77 | 800 |
| 28 | 233 | 53 | 478 | 78 | 814 |
| 29 | 242 | 54 | 490 | 79 | 828 |
| 30 | 250 | 55 | 503 | 80 | 841 |
| 31 | 258 | 56 | 516 | 81 | 855 |
| 32 | 267 | 57 | 530 | 82 | 369 |
| 33 | 275 | 58 | 544 | 83 | 883 |
| 34 | 283 | 59 | 559 | 84 | 897 |
| 35 | 292 | 60 | 573 | 85 | 911 |
| 36 | 300 | 61 | 587 | 86 | 926 |
|---------------------------
|---------------------------
| 37 | 308 | 62 | 600 | 87 | 940 |
| 38 | 316 | 63 | 613 | 88 | 955 |
| 39 | 325 | 64 | 626 | 89 | 969 |
| 40 | 334 | 65 | 639 | 90 | 984 |
| 41 | 344 | 66 | 653 | 91 | 999 |
| 42 | 354 | 67 | 666 | 92 | 1014 |
| 43 | 364 | 68 | 680 | 93 | 1029 |
| 44 | 374 | 69 | 693 | 94 | 1044 |
| 45 | 385 | 70 | 706 | 95 | 1059 |
| 46 | 396 | 71 | 720 | 96 | 1074 |
| 47 | 408 | 72 | 733 | 97 | 1089 |
| 48 | 420 | 73 | 746 | 98 | 1105 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 99 | 1120 | 132 | 1667 | 165 | 2198 |
| 100 | 1135 | 133 | 1684 | 166 | 2212 |
| 101 | 1151 | 134 | 1702 | 167 | 2226 |
| 102 | 1166 | 135 | 1719 | 168 | 2240 |
| 103 | 1181 | 136 | 1736 | 169 | 2254 |
| 104 | 1196 | 137 | 1753 | 170 | 2268 |
| 105 | 1212 | 138 | 1770 | 171 | 2281 |
| 106 | 1228 | 139 | 1787 | 172 | 2294 |
| 107 | 1244 | 140 | 1803 | 173 | 2307 |
| 108 | 1260 | 141 | 1820 | 174 | 2320 |
| 109 | 1276 | 142 | 1837 | 175 | 2332 |
| 110 | 1293 | 143 | 1853 | 176 | 2345 |
| 111 | 1309 | 144 | 1870 | 177 | 2357 |
| 112 | 1326 | 145 | 1886 | 178 | 2369 |
|---------------------------
|---------------------------
| 113 | 1342 | 146 | 1903 | 179 | 2381 |
| 114 | 1359 | 147 | 1919 | 180 | 2393 |
| 115 | 1376 | 148 | 1935 | 181 | 2405 |
| 116 | 1392 | 149 | 1952 | 182 | 2416 |
| 117 | 1409 | 150 | 1968 | 183 | 2428 |
| 118 | 1426 | 151 | 1984 | 184 | 2440 |
| 119 | 1442 | 152 | 2000 | 185 | 2451 |
| 120 | 1459 | 153 | 2016 | 186 | 2463 |
| 121 | 1476 | 154 | 2032 | 187 | 2474 |
| 122 | 1494 | 155 | 2048 | 188 | 2486 |
| 123 | 1511 | 156 | 2064 | 189 | 2497 |
| 124 | 1528 | 157 | 2080 | 190 | 2508 |
| 125 | 1546 | 158 | 2096 | 191 | 2519 |
| 126 | 1563 | 159 | 2111 | 192 | 2530 |
| 127 | 1580 | 160 | 2126 | 193 | 2541 |
| 128 | 1598 | 161 | 2141 | 194 | 2552 |
| 129 | 1615 | 162 | 2155 | 195 | 2562 |
| 130 | 1632 | 163 | 2169 | 196 | 2572 |
| 131 | 1650 | 164 | 2184 | 197 | 2582 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 198 | 2592 | 232 | 2888 | 266 | 3106 |
| 199 | 2602 | 233 | 2895 | 267 | 3112 |
| 200 | 2612 | 234 | 2903 | 268 | 3117 |
| 201 | 2622 | 235 | 2910 | 269 | 3123 |
| 202 | 2632 | 236 | 2918 | 270 | 3128 |
| 203 | 2641 | 237 | 2925 | 271 | 3133 |
| 204 | 2650 | 238 | 2932 | 272 | 3138 |
| 205 | 2659 | 239 | 2939 | 273 | 3143 |
| 206 | 2669 | 240 | 2946 | 274 | 3148 |
| 207 | 2678 | 241 | 2953 | 275 | 3153 |
| 208 | 2687 | 242 | 2959 | 276 | 3158 |
| 209 | 2696 | 243 | 2966 | 277 | 3163 |
| 210 | 2705 | 244 | 2973 | 278 | 3167 |
| 211 | 2714 | 245 | 2979 | 279 | 3172 |
|---------------------------
|---------------------------
| 212 | 2723 | 246 | 2986 | 280 | 3176 |
| 213 | 2732 | 247 | 2993 | 281 | 3181 |
| 214 | 2741 | 248 | 3000 | 282 | 3185 |
| 215 | 2749 | 249 | 3006 | 283 | 3189 |
| 216 | 2758 | 250 | 3012 | 284 | 3194 |
| 217 | 2767 | 251 | 3018 | 285 | 3198 |
| 218 | 2775 | 252 | 3024 | 286 | 3202 |
| 219 | 2784 | 253 | 3030 | 287 | 3207 |
| 220 | 2792 | 254 | 3036 | 288 | 3211 |
| 221 | 2801 | 255 | 3042 | 289 | 3215 |
| 222 | 2809 | 256 | 3048 | 290 | 3220 |
| 223 | 2817 | 257 | 3054 | 291 | 3224 |
| 224 | 2825 | 258 | 3060 | 292 | 3228 |
| 225 | 2833 | 259 | 3066 | 293 | 3233 |
| 226 | 2841 | 260 | 3072 | 294 | 3237 |
| 227 | 2849 | 261 | 3078 | 295 | 3241 |
| 228 | 2857 | 262 | 3084 | 296 | 3246 |
| 229 | 2865 | 263 | 3089 | 297 | 3250 |
| 230 | 2872 | 264 | 3095 | 298 | 3254 |
| 231 | 2880 | 265 | 3101 | 299 | 3258 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 300 | 3262 | 322 | 3337 | 344 | 3392 |
| 301 | 3266 | 323 | 3339 | 345 | 3394 |
| 302 | 3270 | 324 | 3342 | 346 | 3396 |
| 303 | 3274 | 325 | 3345 | 347 | 3399 |
| 304 | 3278 | 326 | 3347 | 348 | 3401 |
| 305 | 3281 | 327 | 3350 | 349 | 3403 |
| 306 | 3285 | 328 | 3353 | 350 | 3406 |
| 307 | 3288 | 329 | 3355 | 351 | 3408 |
| 308 | 3292 | 330 | 3358 | 352 | 3410 |
| 309 | 3295 | 331 | 3361 | 353 | 3412 |
| 310 | 3298 | 332 | 3363 | 354 | 3414 |
| 311 | 3302 | 333 | 3366 | 355 | 3416 |
| 312 | 3305 | 334 | 3368 | 356 | 3418 |
| 313 | 3308 | 335 | 3371 | 357 | 3420 |
|---------------------------
|---------------------------
| 314 | 3312 | 336 | 3373 | 358 | 3422 |
| 315 | 3315 | 337 | 3375 | 359 | 3423 |
| 316 | 3318 | 338 | 3378 | 360 | 3425 |
| 317 | 3322 | 339 | 3380 | 361 | 3427 |
| 318 | 3325 | 340 | 3382 | 362 | 3428 |
| 319 | 3328 | 341 | 3385 | 363 | 3430 |
| 320 | 3331 | 342 | 3387 | 364 | 3432 |
| 321 | 3334 | 343 | 3389 | 365 | 3433 |
|---------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation. Ships above 365 metres in length shall be dealt with
by the Administrations.
TABLE A FREEBOARD TABLE FOR TYPE `A' SHIPS
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (feet) | (inches) | (feet) | (inches) | (feet) | (inches) |
|----|-----|----|-----|----|-----|
| 80 | 8.0 | 140 | 14.2 | 200 | 22.9 |
| 90 | 8.9 | 150 | 15.5 | 210 | 24.5 |
| 100 | 9.8 | 160 | 16.9 | 220 | 26.2 |
| 110 | 10.8 | 170 | 18.3 | 230 | 27.8 |
| 120 | 11.9 | 180 | 19.8 | 240 | 29.5 |
| 130 | 13.0 | 190 | 21.3 | 250 | 31.1 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (feet) | (inches) | (feet) | (inches) | (feet) | (inches) |
|----|-----|----|-----|----|-----|
| 260 | 32.8 | 580 | 92.6 | 900 | 124.0 |
| 270 | 34.6 | 590 | 94.1 | 910 | 124.6 |
| 280 | 36.3 | 600 | 95.5 | 920 | 125.2 |
| 290 | 38.0 | 610 | 96.9 | 930 | 125.7 |
| 300 | 39.7 | 620 | 98.3 | 940 | 126.2 |
| 310 | 41.4 | 630 | 99.6 | 950 | 126.7 |
| 320 | 43.2 | 640 | 100.9 | 960 | 127.2 |
| 330 | 45.0 | 650 | 102.1 | 970 | 127.7 |
| 340 | 46.9 | 660 | 103.3 | 980 | 128.1 |
| 350 | 48.8 | 670 | 104.4 | 990 | 128.6 |
| 360 | 50.7 | 680 | 105.5 | 1000 | 129.0 |
| 370 | 52.7 | 690 | 106.6 | 1010 | 129.4 |
| 380 | 54.7 | 700 | 107.7 | 1020 | 129.9 |
| 390 | 56.8 | 710 | 108.7 | 1030 | 130.3 |
|---------------------------
|---------------------------
| 400 | 58.8 | 720 | 109.7 | 1040 | 130.7 |
| 410 | 60.9 | 730 | 110.7 | 1050 | 131.0 |
| 420 | 62.9 | 740 | 111.7 | 1060 | 131.4 |
| 430 | 65.0 | 750 | 112.6 | 1070 | 131.7 |
| 440 | 67.0 | 760 | 113.5 | 1080 | 132.0 |
| 450 | 69.1 | 770 | 114.4 | 1090 | 132.3 |
| 460 | 71.1 | 780 | 115.3 | 1100 | 132.6 |
| 470 | 73.1 | 790 | 116.1 | 1110 | 132.9 |
| 480 | 75.1 | 800 | 117.0 | 1120 | 133.2 |
| 490 | 77.1 | 810 | 117.8 | 1130 | 133.5 |
| 500 | 79.0 | 820 | 118.6 | 1140 | 133.8 |
| 510 | 80.9 | 830 | 119.3 | 1150 | 134.0 |
| 520 | 82.7 | 840 | 120.1 | 1160 | 134.3 |
| 530 | 84.5 | 850 | 120.7 | 1170 | 134.5 |
| 540 | 86.3 | 860 | 121.4 | 1180 | 134.7 |
| 550 | 88.0 | 870 | 122.1 | 1190 | 135.0 |
| 560 | 89.6 | 880 | 122.7 | 1200 | 135.2 |
| 570 | 91.1 | 890 | 123.4 | |
|---------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation. Ships above 1200 feet in length shall be dealt with
by the Administrations.
Type `B' ships
(2) The tabular freeboard for type `B' ships shall be determined from
the following table:
TABLE B FREEBOARD TABLE FOR TYPE `B' SHIPS
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 24 | 200 | 57 | 530 | 90 | 1075 |
| 25 | 208 | 58 | 544 | 91 | 1096 |
| 26 | 217 | 59 | 559 | 92 | 1116 |
| 27 | 225 | 60 | 573 | 93 | 1135 |
| 28 | 233 | 61 | 587 | 94 | 1154 |
| 29 | 242 | 62 | 601 | 95 | 1172 |
| 30 | 250 | 63 | 615 | 96 | 1190 |
| 31 | 258 | 64 | 629 | 97 | 1209 |
| 32 | 267 | 65 | 644 | 98 | 1229 |
| 33 | 275 | 66 | 659 | 99 | 1250 |
| 34 | 283 | 67 | 674 | 100 | 1271 |
| 35 | 292 | 68 | 689 | 101 | 1293 |
| 36 | 300 | 69 | 705 | 102 | 1315 |
| 37 | 308 | 70 | 721 | 103 | 1337 |
|---------------------------
|---------------------------
| 38 | 316 | 71 | 738 | 104 | 1359 |
| 39 | 325 | 72 | 754 | 105 | 1380 |
| 40 | 334 | 73 | 769 | 106 | 1401 |
| 41 | 344 | 74 | 784 | 107 | 1421 |
| 42 | 354 | 75 | 800 | 108 | 1440 |
| 43 | 364 | 76 | 816 | 109 | 1459 |
| 44 | 374 | 77 | 833 | 110 | 1479 |
| 45 | 385 | 78 | 850 | 111 | 1500 |
| 46 | 396 | 79 | 868 | 112 | 1521 |
| 47 | 408 | 80 | 887 | 113 | 1543 |
| 48 | 420 | 81 | 905 | 114 | 1565 |
| 49 | 432 | 82 | 923 | 115 | 1587 |
| 50 | 443 | 83 | 942 | 116 | 1609 |
| 51 | 455 | 84 | 960 | 117 | 1630 |
| 52 | 467 | 85 | 978 | 118 | 1651 |
| 53 | 478 | 86 | 996 | 119 | 1671 |
| 54 | 490 | 87 | 1015 | 120 | 1690 |
| 55 | 503 | 88 | 1034 | 121 | 1709 |
| 56 | 516 | 89 | 1054 | 122 | 1729 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 123 | 1750 | 157 | 2460 | 191 | 3116 |
| 124 | 1771 | 158 | 2480 | 192 | 3134 |
| 125 | 1793 | 159 | 2500 | 193 | 3151 |
| 126 | 1815 | 160 | 2520 | 194 | 3167 |
| 127 | 1837 | 161 | 2540 | 195 | 3185 |
| 128 | 1859 | 162 | 2560 | 196 | 3202 |
| 129 | 1880 | 163 | 2580 | 197 | 3219 |
| 130 | 1901 | 164 | 2600 | 198 | 3235 |
| 131 | 1921 | 165 | 2620 | 199 | 3249 |
| 132 | 1940 | 166 | 2640 | 200 | 3264 |
| 133 | 1959 | 167 | 2660 | 201 | 3280 |
| 134 | 1979 | 168 | 2680 | 202 | 3296 |
| 135 | 2000 | 169 | 2698 | 203 | 3313 |
| 136 | 2021 | 170 | 2716 | 204 | 3330 |
|---------------------------
|---------------------------
| 137 | 2043 | 171 | 2735 | 205 | 3347 |
| 138 | 2065 | 172 | 2754 | 206 | 3363 |
| 139 | 2087 | 173 | 2774 | 207 | 3380 |
| 140 | 2109 | 174 | 2795 | 208 | 3397 |
| 141 | 2130 | 175 | 2815 | 209 | 3413 |
| 142 | 2151 | 176 | 2835 | 210 | 3430 |
| 143 | 2171 | 177 | 2855 | 211 | 3445 |
| 144 | 2190 | 178 | 2875 | 212 | 3460 |
| 145 | 2209 | 179 | 2895 | 213 | 3475 |
| 146 | 2229 | 180 | 2915 | 214 | 3490 |
| 147 | 2250 | 181 | 2933 | 215 | 3505 |
| 148 | 2271 | 182 | 2952 | 216 | 3520 |
| 149 | 2293 | 183 | 2970 | 217 | 3537 |
| 150 | 2315 | 184 | 2988 | 218 | 3554 |
| 151 | 2334 | 185 | 3007 | 219 | 3570 |
| 152 | 2354 | 186 | 3025 | 220 | 3586 |
| 153 | 2375 | 187 | 3044 | 221 | 3601 |
| 154 | 2396 | 188 | 3062 | 222 | 3615 |
| 155 | 2418 | 189 | 3080 | 223 | 3630 |
| 156 | 2440 | 190 | 3098 | 224 | 3645 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 225 | 3660 | 259 | 4139 | 293 | 4548 |
| 226 | 3675 | 260 | 4152 | 294 | 4560 |
| 227 | 3690 | 261 | 4165 | 295 | 4572 |
| 228 | 3705 | 262 | 4177 | 296 | 4583 |
| 229 | 3720 | 263 | 4189 | 297 | 4595 |
| 230 | 3735 | 264 | 4201 | 298 | 4607 |
| 231 | 3750 | 265 | 4214 | 299 | 4618 |
| 232 | 3765 | 266 | 4227 | 300 | 4630 |
| 233 | 3780 | 267 | 4240 | 301 | 4642 |
| 234 | 3795 | 268 | 4252 | 302 | 4654 |
| 235 | 3808 | 269 | 4264 | 303 | 4665 |
| 236 | 3821 | 270 | 4276 | 304 | 4676 |
| 237 | 3835 | 271 | 4289 | 305 | 4686 |
| 238 | 3849 | 272 | 4302 | 306 | 4695 |
|---------------------------
|---------------------------
| 239 | 3864 | 273 | 4315 | 307 | 4704 |
| 240 | 3880 | 274 | 4327 | 308 | 4714 |
| 241 | 3893 | 275 | 4339 | 309 | 4725 |
| 242 | 3906 | 276 | 4350 | 310 | 4736 |
| 243 | 3920 | 277 | 4362 | 311 | 4748 |
| 244 | 3934 | 278 | 4373 | 312 | 4757 |
| 245 | 3949 | 279 | 4385 | 313 | 4768 |
| 246 | 3965 | 280 | 4397 | 314 | 4779 |
| 247 | 3978 | 281 | 4408 | 315 | 4790 |
| 248 | 3992 | 282 | 4420 | 316 | 4801 |
| 249 | 4005 | 283 | 4432 | 317 | 4812 |
| 250 | 4018 | 284 | 4443 | 318 | 4823 |
| 251 | 4032 | 285 | 4455 | 319 | 4834 |
| 252 | 4045 | 286 | 4467 | 320 | 4844 |
| 253 | 4058 | 287 | 4478 | 321 | 4855 |
| 254 | 4072 | 288 | 4490 | 322 | 4866 |
| 255 | 4085 | 289 | 4502 | 323 | 4878 |
| 256 | 4098 | 290 | 4513 | 324 | 4890 |
| 257 | 4112 | 291 | 4525 | 325 | 4899 |
| 258 | 4125 | 292 | 4537 | 326 | 4909 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres) |
|----|-----|----|-----|----|-----|
| 327 | 4920 | 340 | 5055 | 353 | 5190 |
| 328 | 4931 | 341 | 5065 | 354 | 5200 |
| 329 | 4943 | 342 | 5075 | 355 | 5210 |
| 330 | 4955 | 343 | 5086 | 356 | 5220 |
| 331 | 4965 | 344 | 5097 | 357 | 5230 |
| 332 | 4975 | 345 | 5108 | 358 | 5240 |
| 333 | 4985 | 346 | 5119 | 359 | 5250 |
| 334 | 4995 | 347 | 5130 | 360 | 5260 |
| 335 | 5005 | 348 | 5140 | 361 | 5268 |
| 336 | 5015 | 349 | 5150 | 362 | 5276 |
| 337 | 5025 | 350 | 5160 | 363 | 5285 |
| 338 | 5035 | 351 | 5170 | 364 | 5294 |
| 339 | 5045 | 352 | 5180 | 365 | 5303 |
|---------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation. Ships above 365 metres in length shall be dealt with
by the Administrations.
TABLE B FREEBOARD TABLE FOR TYPE `B' SHIPS
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (feet) | (inches) | (feet) | (inches) | (feet) | (inches) |
|----|-----|----|-----|----|-----|
| 80 | 8.0 | 170 | 18.3 | 260 | 34.4 |
| 90 | 8.9 | 180 | 19.8 | 270 | 36.5 |
| 100 | 9.8 | 190 | 21.3 | 280 | 38.7 |
| 110 | 10.8 | 200 | 22.9 | 290 | 41.0 |
| 120 | 11.9 | 210 | 24.7 | 300 | 43.3 |
| 130 | 13.0 | 220 | 26.6 | 310 | 45.7 |
| 140 | 14.2 | 230 | 28.5 | 320 | 48.2 |
| 150 | 15.5 | 240 | 30.4 | 330 | 50.7 |
| 160 | 16.9 | 250 | 32.4 | 340 | 53.2 |
|---------------------------
|---------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (feet) | (inches) | (feet) | (inches) | (feet) | (inches) |
|----|-----|----|-----|----|-----|
| 350 | 55.7 | 640 | 125.3 | 930 | 174.7 |
| 360 | 58.2 | 650 | 127.3 | 940 | 176.1 |
| 370 | 60.7 | 660 | 129.3 | 950 | 177.5 |
| 380 | 63.2 | 670 | 131.3 | 960 | 178.9 |
| 390 | 65.7 | 680 | 133.3 | 970 | 180.3 |
| 400 | 68.2 | 690 | 135.3 | 980 | 181.7 |
| 410 | 70.7 | 700 | 137.1 | 990 | 183.1 |
| 420 | 73.2 | 710 | 139.0 | 1000 | 184.4 |
| 430 | 75.7 | 720 | 140.9 | 1010 | 185.8 |
| 440 | 78.2 | 730 | 142.7 | 1020 | 187.2 |
| 450 | 80.7 | 740 | 144.5 | 1030 | 188.5 |
| 460 | 83.1 | 750 | 146.3 | 1040 | 189.8 |
| 470 | 85.6 | 760 | 148.1 | 1050 | 191.0 |
| 480 | 88.1 | 770 | 149.8 | 1060 | 192.3 |
|---------------------------
|---------------------------
| 490 | 90.6 | 780 | 151.5 | 1070 | 193.5 |
| 500 | 93.1 | 790 | 153.2 | 1080 | 194.8 |
| 510 | 95.6 | 800 | 154.8 | 1090 | 196.1 |
| 520 | 98.1 | 810 | 156.4 | 1100 | 197.3 |
| 530 | 100.6 | 820 | 158.0 | 1110 | 198.6 |
| 540 | 103.0 | 830 | 159.6 | 1120 | 199.9 |
| 550 | 105.4 | 840 | 161.2 | 1130 | 201.2 |
| 560 | 107.7 | 850 | 162.8 | 1140 | 202.3 |
| 570 | 110.0 | 860 | 164.3 | 1150 | 203.5 |
| 580 | 112.3 | 870 | 165.9 | 1160 | 204.6 |
| 590 | 114.6 | 880 | 167.4 | 1170 | 205.8 |
| 600 | 116.8 | 890 | 168.9 | 1180 | 206.9 |
| 610 | 119.0 | 900 | 170.4 | 1190 | 208.1 |
| 620 | 121.1 | 910 | 171.8 | 1200 | 209.3 |
| 630 | 123.2 | 920 | 173.3 | |
|---------------------------
Freeboards at intermediate lengths of ship shall be obtained by
linear interpolation. Ships above 1200 feet in length shall be dealt with
by the Administrations.
REGULATION 29 Correction to the Freeboard for Ships under 100metres (328 feet) in length
The tabular freeboard for a type `B' ship of between 24 metres (79
feet) and 100 metres (328 feet) in length having enclosed superstructures
with an effective length of up to 35 per cent of the length of the ship
shall be increased by:
E
7.5 (100-L) (0.35- --) millimetres
L
where L=length of ship in metres
E=effective length of superstructure in metres as defined in
Regulation 35
E
0.09 (328-L) (0.35- --) inches
L
where L=length of ship in feet
E=effective length of superstructure in feet as defined in
Regulation 35.
REGULATION 30 Correction for Block Coefficient
Where the block coefficient (C ) exceeds 0.68, the tabular freeboard
b
specified in Regulation 28 as modified, if applicable, by Regulations
27 (8), 27 (10) and 29 shall be multiplied by the factor
|-------|
| C + 0.68 |
| b |
| -----. |
| 1.36 |
|-------|
REGULATION 31 Correction for Depth
L L
(1) Where D exceeds -- the freeboard shall be increased by (D- --) R
15 15
L
millimetres where R is --- at lengths less than 120 metres and 250 at
0.48
120 metres length and above, or:
L L
(D - --) R inches, where R is --- at lengths less than 393.6 feet and
15 131.2
3 at 393.6 feet length and above.
L
(2) Where D is less than -- no reduction shall be made except in a
15
ship with an enclosed superstructure covering at least 0.6 L amidships,
with a complete trunk, or combination of detached enclosed superstructures
and trunks which extend all fore and aft, where the freeboard shall be
reduced at the rate prescribed in paragraph (1) of this Regulation.
(3) Where the height of superstructure or trunk is less than the
standard height, the reduction shall be in the ratio of the actual to the
standard height as defined in Regulation 33.
REGULATION 32 Correction for Position of Deck Line
Where the actual depth to the upper edge of the deck line is greater
or less than D, the difference between the depths shall be added to or
deducted from the freeboard.
REGULATION 33 Standard Height of Superstructure
The standard height of a superstructure shall be as given in the
following table:
TABLE STANDARD HEIGHT (IN METERS)
|-----------------
| L | Raised | All other |
| (metres) | quarter deck | superstructures |
|----|------|------|
| 30 or less | 0.90 | 1.80 |
| 75 | 1.20 | 1.80 |
| 125 or more | 1.80 | 2.30 |
|-----------------
TABLE STANDARD HEIGHT (IN FEET)
|-----------------
| L | Raised | All other |
| (feet) | quarter deck | superstructures |
|----|------|------|
| 98.5 or less | 3.0 | 5.9 |
| 246 | 3.9 | 5.9 |
| 410 or more | 5.9 | 7.5 |
|-----------------
The standard heights at intermediate lengths of the ship shall be
obtained by linear interpolation.
REGULATION 34 Length of Superstructure
(1) Except as provided in paragraph (2) of this Regulation, the length
of a superstructure (S) shall be the mean length of the parts of the
superstructure which lie within the length (L).
(2) Where the end bulkhead of an enclosed superstructure extends in a
fair convex curve beyond its intersection with the superstructure sides,
the length of the superstructure may be increased on the basis of an
equivalent plane bulkhead. This increase shall be two-thirds of the fore
and aft extent of the curvature. The maximum curvature which may be taken
into account in determining this increase is one-half the breadth of the
superstructure at the point of intersection of the curved end of the
superstructure with its side.
REGULATION 35 Effective Length of Superstructure
(1) Except as provided for in paragraph (2) of this Regulation, the
effective length (E) of an enclosed superstructure of standard height
shall be its length.
(2) In all cases where an enclosed superstructure of standard height
is set in from the sides of the ship as permitted in Regulation 3 (10),
the effective length shall be the length modified by the ratio of b/Bs,
where
`b' is the breadth of the superstructure at the middle of its length;
and
`Bs' is the breadth of the ship at the middle of the length of the
superstructure. Where a superstructure is set in for a part of its length,
this modification shall be applied only to the set in part.
(3) Where the height of an enclosed superstructure is less than the
standard height, the effective length shall be its length reduced in the
ratio of the actual height to the standard height. Where the height
exceeds the standard, no increase shall be made to the effective length of
the superstructure.
(4) The effective length of a raised quarter deck, if fitted with an
intact front bulkhead, shall be its length up to a maximum of 0.6 L.
Where the bulkhead is not intact, the raised quarter deck shall be treated
as a poop of less than standard height.
(5) Superstructures which are not enclosed shall have no effective
length.
REGULATION 36 Trunks
(1) A trunk or similar structure which does not extend to the sides of
the ship shall be regarded as efficient on the following conditions:
(a) the trunk is at least as strong as a superstructure;
(b) the hatchways are in the trunk deck, and the hatchway coamings
and covers comply with the requirements of Regulations 13 to 16 inclusive
and the width of the trunk deck stringer provides a satisfactory gangway
and sufficient lateral stiffness. However, small access openings with
watertight covers may be permitted in the freeboard deck;
(c) a permanent working platform fore and aft fitted with guard
rails is provided by the trunk deck, or by detached trunks connected to
superstructures by efficient permanent gangways;
(d) ventilators are protected by the trunk, by watertight covers
or by other equivalent means;
(e) open rails are fitted on the weather parts of the freeboard
deck in way of the trunk for at least half their length;
(f) the machinery casings are protected by the trunk, by a
superstructure of at least standard height, or by a deckhouse of the same
height and of equivalent strength;
(g) the breadth of the trunk is at least 60 per cent of the
breadth of the ship; and
(h) where there is no superstructure, the length of the trunk is
at least 0.6 L.
(2) The full length of an efficient trunk reduced in the ratio of its
mean breadth to B shall be its effective length.
(3) The standard height of a trunk is the standard height of a
superstructure other than a raised quarter deck.
(4) Where the height of a trunk is less than the standard height, its
effective length shall be reduced in the ratio of the actual to the
standard height. Where the height of hatchway coamings on the trunk deck
is less than that required under Regulation 15 (1), a reduction from the
actual height of trunk shall be made which corresponds to the difference
between the actual and the required height of coaming.
REGULATION 37 Deduction for Superstructures and Trunks
(1) Where the effective length of superstructures and trunks is 1.0 L,
the deduction from the freeboard shall be 350 millimetres at 24 metres
length of ship, 860 millimetres at 85 metres length, and 1070 millimetres
at 122 metres length and above (14 inches at 79 feet length of ship, 34
inches at 279 feet length, and 42 inches at 400 feet length and above);
deductions at intermediate lengths shall be obtained by linear
interpolation.
(2) Where the total effective length of superstructures and trunks is
less than 1.0 L the deduction shall be a percentage obtained from one of
the following tables:
TABEL PERCENTAGE OF DEDUCTION FOR TYPE `A' SHIPS
|-----------------------------
| Total effective length of superstructures and trunks |
|------------------------|
| 0 | 0.1L | 0.2L | 0.3L | 0.4L | 0.5L | 0.6L | 0.7L | 0.8L | 0.9L | 1.0L |
|-----|---|--|--|--|--|--|--|--|--|--|--|
| Percentage | | | | | |
| of deduction | | | | | |
| for all | 0 | 7 | 14 | 21 | 31 | 41 | 52 | 63 | 75.5 | 87.7 | 100 |
| types of | | | | | |
| superstructures | | | | | |
|-----------------------------
Percentages at intermediate lengths of superstructures shall
be obtained by linear interpolation.
(3) For ships of type `B':
(a) Where the effective length of a bridge is less than 0.2 L, the
percentages shall be obtained by linear interpolation between lines I and
II.
(b) Where the effective length of a forecastle is more than 0.4 L,
the percentages shall be obtained from line II.
(c) Where the effective length of a forecastle is less than 0.07
L, the above percentages
TABLE PERCENTAGE OF DEDUCTION FOR TYPE `B' SHIPS
|-------------------------------
| Total effective length of superstructures and trunks |
|---------------------------|
| Line | 0 | 0.1L | 0.2L | 0.3L | 0.4L | 0.5L | 0.6L | 0.7L | 0.8L | 0.9L | 1.0L |
|-----|---|---|--|--|--|--|--|--|--|--|--|--|
| Ships | | | | | | |
| with | | | | | | |
| forecastle | I | 0 | 5 | 10 | 15 | 23.5 | 32 | 46 | 63 | 75.3 | 87.7 | 100 |
| and | | | | | | |
| without | | | | | | |
| detached | | | | | | |
| bridge | | | | | | |
|-----|---|---|--|--|--|--|--|--|--|--|--|--|
| Ships | | | | | | |
| with | | | | | | |
| forecastle | II | 0 | 6.3 | 12.7 | 19 | 27.5 | 36 | 46 | 63 | 75.3 | 87.7 | 100 |
| and | | | | | | |
| detached | | | | | | |
| bridge | | | | | | |
|-------------------------------
Percentages at intermediate lengths of superstructures shall be
obtained by linear interpolation. shall be reduced by:
(0.07L-f)
5 ¡Á---
0.07L
where f is the effective length of the forecastle.
REGULATION 38 Sheer
General
(1) The sheer shall be measured from the deck at side to a line of
reference drawn parallel to the keel through the sheer line at amidships.
(2) In ships designed with a rake of keel, the sheer shall be measured
in relation to a reference line drawn parallel to the design load
waterline.
(3) In flush deck ships and in ships with detached superstructures the
sheer shall be measured at the freeboard deck.
(4) In ships with topsides of unusual form in which there is a step or
break in the topsides, the sheer shall be considered in relation to the
equivalent depth amidships.
(5) In ships with a superstructure of standard height which extends
over the whole length of the freeboard deck, the sheer shall be measured
at the superstructure deck. Where the height exceeds the standard the
least difference (Z) between the actual and standard heights shall be
added to each end ordinate. Similarly, the intermediate ordinates at
distances of 1/6 L and 1/3 L from each perpendicular shall be increased by
0.444 Z and 0.111 Z respectively.
(6) Where the deck of an enclosed superstructure has at least the same
sheer as the exposed freeboard deck, the sheer of the enclosed portion of
the freeboard deck shall not be taken into account.
(7) Where an enclosed poop or forecastle is of standard height with
greater sheer than that of the freeboard deck, or is of more than standard
height, an addition to the sheer of the freeboard deck shall be made as
provided in paragraph (12) of this Regulation.
Standard Sheer Profile
(8) The ordinates of the standard sheer profile are given in the
following table.
TABLE STANDARD SHEER PROFILE (Where L is in metres)
|-----------------------
| | Ordinate |
| Station | Factor |
| | (in millimetres) |
|-----|----------|-------|---|
| | L |
| After half | After perpendicular ¡¡¡¡¡¡¡ | 25 (--+10) | 1 |
| | 3 |
| 1 | L |
| --L from A.P.¡¡¡¡¡¡¡¡¡¡ | 11.1(--+10) | 3 |
| 6 | 3 |
| 1 | L |
| --L from A.P.¡¡¡¡¡¡¡¡¡¡ | 2.8(--+10) | 3 |
| 3 | 3 |
| Amidships ¡¡¡¡¡¡¡¡¡¡¡¡ | 0 | 1 |
|-----|----------|-------|---|
| | |
| Forward half | Amidships ¡¡¡¡¡¡¡¡¡¡¡¡ | 0 | 1 |
| | L |
| 1 | 5.6(--+10) | 3 |
| --L from F.P.¡¡¡¡¡¡¡¡¡¡ | 3 |
| 3 | L |
| 1 | 22.2(--+10) | 3 |
| --L from F.P.¡¡¡¡¡¡¡¡¡¡ | 3 |
| 6 | L |
| Forward perpendicular ¡¡¡¡¡¡ | 50(--+10) | 1 |
| | 3 |
|-----------------------
TABLE STANDARD SHEER PROFILE (Where L is in feet)
|-----------------------
| | Ordinate |
| Station | Factor |
| | (in inches) |
|-----|----------|-------|---|
| | |
| After half | After perpendicular ¡¡¡¡¡¡¡ | 0.1 L+10 | 1 |
| | |
| 1 | |
| --L from A.P.¡¡¡¡¡¡¡¡¡¡ | 0.0444L+4.44 | 3 |
| 6 | |
| 1 | |
| --L from A.P.¡¡¡¡¡¡¡¡¡¡ | 0.0111L+1.11 | 3 |
| 3 | |
| Amidships ¡¡¡¡¡¡¡¡¡¡¡¡ | 0 | 1 |
|-----|----------|-------|---|
| | |
| Forward half | Amidships ¡¡¡¡¡¡¡¡¡¡¡¡ | 0 | 1 |
| | |
| 1 | 0.0222L+2.22 | 3 |
| --L from F.P.¡¡¡¡¡¡¡¡¡¡ | |
| 3 | |
| 1 | 0.0888L+8.88 | 3 |
| --L from F.P.¡¡¡¡¡¡¡¡¡¡ | |
| 6 | |
| | |
| Forward perpendicular ¡¡¡¡¡¡ | 0.2 L+20 | 1 |
|-----------------------
Measurement of Variation from Standard Sheer. Profile
(9) Where the sheer profile differs from the standard, the four
ordinates of each profile in the forward or after half shall be multiplied
by the appropriate factors given in the Table of ordinates. The difference
between the sums of the respective products and those of the standard
divided by 8 measures the deficiency or excess of sheer in the forward or
after half. The arithmetical mean of the excess or deficiency in the
forward and after halves measures the excess or deficiency of sheer.
(10) Where the after half of the sheer profile is greater than the
standard and the forward half is less than the standard, no credit shall
be allowed for the part in excess and deficiency only shall be measured.
(11) Where the forward half of the sheer profile exceeds the standard,
and the after portion of the sheer profile is not less than 75 per cent of
the standard, credit shall be allowed for the part in excess; where the
after part is less than 50 per cent of the standard no credit shall be
given for the excess sheer forward. Where the after sheer is between 50
per cent and 75 per cent of the standard, intermediate allowances may be
granted for excess sheer forward.
(12) Where sheer credit is given for a poop or forecastle the
following formula shall be used:
|-----|
| y L' |
| s=-- -- |
| 3 L |
|-----|
Where s=sheer credit, to be deducted from the deficiency or added to
the excess of
sheer.
y=difference between actual and standard height of
superstructure at the end of
sheer.
L'=mean enclosed length of poop or forecastle up to a maximum
length of 0.5 L.
L =length of ship as defined in Regulation 3 (1) of this Annex.
The above formula provides a curve in the from of a parabola tangent
to the actual sheer curve at the freeboard deck and intersecting the end
ordinate at a point below the superstructure deck a distance equal to the
standard height of a superstructure. The superstructure deck shall not be
less than standard height above this curve at any point. This curve shall
be used in determining the sheer profile for forward and after halves of
the ship.
Correction for Variations from Standard Sheer Profile
(13) The correction for sheer shall be the deficiency or excess of
sheer (see paragraphs (9) to (11) inclusive of this Regulation),
multiplied by
S
0.75- --
2L
where S is the total length of enclosed superstructures.
Addition for Deficiency in Sheer
(14) Where the sheer is less than the standard, the correction for
deficiency in sheer (see paragraph (13) of this Regulation) shall be added
to the freeboard.
Deduction for Excess Sheer
(15) In ships where an enclosed superstructure covers 0.1 L before and
0.1 L abaft amidships, the correction for excess of sheer as calculated
under the provisions of paragraph (13) of this Regulation shall be
deducted from the freeboard; in ships where no enclosed superstructure
covers amidships, no deduction shall be made from the freeboard; where an
enclosed superstructure covers less than 0.1 L before and 0.1 L abaft
amidships, the deduction shall be obtained by linear interpolation. The
maximum deduction for excess sheer shall be at the rate of 125 millimetres
per 100 metres of length (1.5 inches per 100 feet of length).
REGULATION 39 Minimum Bow Height
(1) The bow height defined as the vertical distance at the forward
perpendicular between the waterline corresponding to the assigned summer
freeboard and the designed trim and the top of the exposed deck at side
shall be not less than:
for ships below 250 metres in length,
|-------|
| L 1.36 |
| 56L (1- --) -- | millimetres;
| 500 C +0.68 |
| b |
|-------|
for ships of 250 metres and above in length,
|-------|
| 1.36 |
| 7000 -- | millimetres;
| C +0.68 |
| b |
|-------|
where L is the length of the ship in metres,
|---|
| C | is the block coefficient which is to be taken as not less
| b |
|---|
than 0.68 or, for ships below 820 feet in length,
|--------|
| L 1.36 |
| 0.672L (1- ---) -- | inches;
| 1640 C +0.68 |
| b |
|--------|
for ships of 820 feet and above in length,
|-------|
| 1.36 |
| 275.6 -- | inches;
| C +0.68 |
| b |
|-------|
where L is the length of the ship in feet,
|---|
| C | is the block coefficient which is to be taken as not less
| b |
|---|
than 0.68.
(2) Where the bow height required in paragraph (1) of this Regulation
is obtained by sheer, the sheer shall extend for at least 15 per cent of
the length of the ship measured from the forward perpendicular. Where it
is obtained by fitting a superstructure, such superstructure shall extend
from the stem to a point at least 0.07 L abaft the forward perpendicular,
and it shall comply with the following requirements:
(a) for ships not over 100 metres (328 feet) in length it shall be
enclosed as defined in Regulation 3 (10), and
(b) for ships over 100 metres (328 feet) in length it need not
comply with Regulations 3 (10), but shall be fitted with closing
appliances to the satisfaction of the Administration.
(3) Ships which, to suit exceptional operational requirements, cannot
meet the requirements of paragraphs (1) and (2) of this Regulation may be
given special consideration by the Administration.
REGULATION 40 Minimum Freeboards
Summer Freeboard
(1) The minimum freeboard in summer shall be the freeboard derived
from the Tables in Regulation 28 as modified by the corrections in
Regulations 27, as applicable, 29, 30, 31, 32, 37, 38 and, if applicable,
39.
(2) The freeboard in salt water, as calculated in accordance with
paragraph (1) of this Regulation, but without the correction for deck
line, as provided by Regulation 32, shall not be less than 50 millimetres
(2 inches). For ships having in position 1 hatchways with covers which do
not comply with the requirements of Regulations 15 (7), 16 or 26, the
freeboard shall be not less than 150 millimetres (6 inches).
Tropical Freeboard
(3) The minimum freeboard in the Tropical Zone shall be the freeboard
obtained by a deduction from the summer freeboard of one forty-eighth of
the summer draught measured from the top of the keel to the centre of the
ring of the load line mark.
(4) The freeboard in salt water, as calculated in accordance with
paragraph (1) of this Regulation, but without the correction for deck
line, as provided by Regulation 32, shall not be less than 50 millimetres
(2 inches). For ships having in position 1 hatchways with covers which do
not comply with the requirements of Regulations 15 (7), 16 or 26, the
freeboard shall be not less than 150 millimetres (6 inches).
Winter Freeboard
(5) The minimum freeboard in winter shall be the freeboard obtained by
an addition to the summer freeboard of one forty-eighth of summer draught,
measured from the top of the keel to the centre of the ring of the load
line mark.
Winter North Atlantic Freeboard
(6) The minimum freeboard for ships of not more than 100 metres (328
feet) in length which enter any part of the North Atlantic defined in
Regulation 52 (Annex II), during the winter seasonal period shall be the
winter freeboard plus 50 millimetres (2 inches). For other ships, the
Winter North Atlantic Freeboard shall be the winter freeboard.
Fresh Water Freeboard
(7) The minimum freeboard in fresh water of unit density shall be
obtained by deducting from the minimum freeboard in salt water:
¡÷
-- centimetres (inches)
40T
where ¡÷=displacement in salt water in tons at the summer load
water line;
T=tons per centimetres (inch) immersion in salt water at the
summer load water line.
(8) Where the displacement at the summer load water line cannot be
certified, the deduction shall be one forty-eighth of summer draught,
measured from the top of the keel to the centre of the ring of the load
line mark.
CHAPTER IV SPECIAL REQUIREMENTS FOR SHIPS ASSIGNED TIMBER FREE-BOARDS
REGULATION 41 Application of this Chapter
Regulations 42 to 45 inclusive apply only to ships to which timber
load lines are assigned.
REGULATION 42 Definitions
(1) Timber Deck Cargo. The term "timber deck cargo" means a cargo of
timber carried on an uncovered part of a freeboard or superstructure deck.
The term does not include wood pulp or similar cargo.
(2) Timber Load Line. A timber deck cargo may be regarded as giving a
ship a certain additional buoyancy and a greater degree of protection
against the sea. For that reason, ships carrying a timber deck cargo may
be granted a reduction of freeboard calculated according to the provisions
of Regulation 45 and marked on the ship's side in accordance with the
provisions of Regulation 6 (3) and (4). However, in order that such
special freeboard may be granted and used, the timber deck cargo shall
comply with certain conditions which are laid down in Regulation 44, and
the ship itself shall also comply with certain conditions relating to its
construction which are set out in Regulation 43.
REGULATION 43 Construction of Ship
Superstructure
(1) Ships shall have a forecastle of at least standard height and a
length of at least 0.07 L. In addition, if the ship is less than 100
metres (328 feet) in length, a poop of at least standard height, or a
raised quarter-deck with either a deckhouse or a strong steel hood of at
least the same total height shall be fitted aft.
Double Bottom Tanks
(2) Double bottom tanks where fitted within the midship half length of
the ship shall have adequate watertight longitudinal sub-division.
Bulwarks
(3) The ship shall be fitted either with permanent bulwarks at least 1
metre (39.5 inches) in height, specially stiffened on the upper edge and
supported by strong bulwark stays attached to the deck and provided with
necessary freeing ports, or with efficient rails of the same height and of
specially strong construction.
REGULATION 44 Stowage
General
(1) Openings in the weather deck over which cargo is stowed shall be
securely closed and battened down. The ventilators shall be efficiently
protected.
(2) Timber deck cargo shall extend over at least the entire available
length which is the total length of the well or wells between
superstructures. Where there is no limiting superstructure at the after
end, the timber shall extend at least to the after end of the aftermost
hatchway. The timber shall be stowed as solidly as possible to at least
the standard height of the superstructure.
(3) On a ship within a seasonal winter zone in winter, the height of
the deck cargo above the weather deck shall not exceed one-third of the
extreme breadth of the ship.
(4) The timber deck cargo shall be compactly stowed, lashed and
secured. It shall not interfere in any way with the navigation and
necessary work of the ship.
Uprights
(5) Uprights, when required by the nature of the timber, shall be of
adequate strength considering the breadth of the ship; the spacing shall
be suitable for the length and character of timber carried, but shall not
exceed 3 metres (9.8 feet). Strong angles or metal sockets or equally
efficient means shall be provided for securing the uprights.
Lashings
(6) Timber deck cargo shall be efficiently secured throughout its
length by independent over-all lashings spaced not more than 3 metres (9.8
feet) apart. Eye plates for these lashings shall be efficiently attached
to the sheer strake or to the deck stringer plate at intervals of not more
than 3 metres (9.8 feet). The distance from an end bulkhead of a
superstructure to the first eye plate shall be not more than 2 metres (6.6
feet). Eye plates and lashings shall be provided
0.6 metres (23.5inches) and 1.5 metres (4.9 feet) from the ends of timber
deck car goes where there is no bulkhead.
(7) Lashings shall be not less than 19 millimetres (0.75 inch) close
link chain or flexible wire rope of equivalent strength, fitted with
sliphooks and turnbuckles, which shall be accessible at all times. Wire
rope lashings shall have a short length of long link chain to permit the
length of lashings to be regulated.
(8) When timber is in lengths less than 3.6 metres (11.8 feet) the
spacing of the lashings shall be reduced or other suitable provisions made
to suit the length of timber.
(9) All fittings required for securing the lashings shall be of
strength corresponding to the strength of the lashings.
Stability
(10) Provision shall be made for a safe margin of stability at all
stages of the voyage, regard being given to additions of weight, such as
those due to absorption of water and icing and to losses of weight such as
those due to consumption of fuel and stores.
Protection of Crew, Access to Machinery Spaces, etc.
(11) In addition to the requirements of Regulation 25 (5) of this
Annex guard rails or life lines spaced not more than 33 centimetres (13
inches) apart vertically shall be provided on each side of the deck cargo
to a height of at least 1 metre (39.5 inches) above the cargo.
Steering Arrangements
(12) Steering arrangements shall be effectively protected from damage
by cargo and, as far as practicable, shall be accessible, Efficient
provision shall be made for steering in the event of a breakdown in the
main steering arrangements.
REGULATION 45 Computation for Freeboard
(1) The minimum summer freeboards are computed in accordance with
Regulations 27 (5), 27 (6), 27 (11), 28, 29, 30, 31, 32, 37 and 38, except
that Regulation 37 is modified by substituting the following percentages
for those given in Regulation 37:
(2) The Winter Timber Freeboard shall be obtained by adding to the
Summer Timber Freeboard one thirty-sixth of the moulded summer timber
draught.
(3) The Winter North Atlantic Timber Freeboard shall be the same as
the Winter North Atlantic Freeboard prescribed in Regulation 40 (6).
|-----------------------------
| Total effective length of superstructures |
|------------------------|
| 0 | 0.1L | 0.2L | 0.3L | 0.4L | 0.5L | 0.6L | 0.7L | 0.8L | 0.9L | 1.0L |
|-----|---|--|--|--|--|--|--|--|--|--|--|
| Percentage of | | | | | |
| deduction | | | | | |
| for all | 20 | 31 | 42 | 53 | 64 | 70 | 76 | 82 | 88 | 94 | 100 |
| types of | | | | | |
| superstructure | | | | | |
|-----------------------------
Percentages at intermediate lengths of superstructures shall
be obtained by linear interpolation.
(4) The Tropical Timber Freeboard shall be obtained by deducting from
the Summer Timber Freeboard one forty-eighth of the moulded summer timber
draught.
(5) The Fresh Water Timber Freeboard shall be computed in accordance
with Regulation 40 (7) based on the summer timber load water line.
ANNEX II: ZONES, AREAS AND SEASONAL PERIODS
The zones and areas in this Annex are, in general, based on the
following criteria:
Summer-not more than 10 per cent winds of force 8 Beaufort (34 knots)
or more.
Tropical-not more than 1 per cent winds of force 8 Beaufort (34
knots) or more. Not more than one tropical storm in 10 years in an area of
5 ¡ãsquare in any one separate calendar month.
In certain special areas, for practical reasons, some degree of
relaxation has been found acceptable.
A chart is attached to this Annex to illustrate the zones and areas
defined below.
REGULATION 46 Northern Winter Seasonal Zones and Area
(1) North Atlantic Winter Seasonal Zones I and II
(a) The North Atlantic Winter Seasonal Zone I lies within the meridian
of longitude 50¡ãW from the coast of Greenland to latitude 45¡ãN, thence
the parallel of latitude 45 ¡ãN to longitude 15 ¡ãW, thence the meridian
of longitude 15¡ãW to latitude 60¡ãN, thence the parallel of latitude 60
¡ãN to the Greenwich Meridian, thence this meridian northwards.
Seasonal periods:
Winter: 16 October to 15 April.
Summer: 16 April to 15 October.
(b) The North Atlantic Winter Seasonal Zone II lies Within the
meridian of longitude 68 ¡ã30¡äW from the coast of the United States to
latitude 40¡ãN, thence the rhumb line to the point latitude 36 ¡ãN,
longitude 73 ¡ãW, thence the parallel of latitude 36 ¡ãN to longitude 25
¡ãW and thence the rhumb line to Cape Torinnana.
Excluded from this zone are the North Atlantic Winter Seasonal Zone I
and the Baltic Sea bounded by the parallel of the latitude of The Skaw in
the Skagerrak.
Seasonal periods:
Winter: 1 November to 31 March.
Summer: 1 April to 31 October.
(2) North Atlantic Winter Seasonal Area
The boundary of the North Atlantic Winter Seasonal Area is
the meridian of longitude 68 ¡ã30¡äW from the coast of the United
States to latitude 40¡ãN, thence the rhumb line to the southernmost
intersection of the meridian of longitude 61¡ãW with the coast of Canada
and thence the east coasts of Canada and the United States.
Seasonal periods:
For ships over 100 metres (328 feet) in length:
Winter: 16 December to 15 February.
Summer: 16 February to 15 December.
For ships of 100 metres (328 feet) and under in length:
Winter: 1 November to 31 March.
Summer: 1 April to 31 October.
(3) North Pacific Winter Seasonal Zone
The southern boundary of the North Pacific Winter Seasonal Zone is
the parallel of latitude 50¡ãN from the east coast of the USSR to
the west coast of Sakhalin, thence the west coast of Sakhalin to the
southern extremity of Kurilion, thence the rhumb line to Wakkanai,
Hokkaido, Japan, thence the east and south coasts of Hokkaido to longitude
145¡ãE, thence the meridian of longitude 145 ¡ãE to latitude 35¡ãN, thence
the parallel of latitude 35 ¡ãN to longitude 150¡ãW and thence the rhumb
line to the southern extremity of Dall Island, Alaska.
Seasonal periods:
Winter: 16 October to 15 April.
Summer: 16 April to 15 October.
REGULATION 47 Southern Winter Seasonal Zone
The northern boundary of the Southern Winter Seasonal Zone is
the rhumb line from the east coast of the American continent at
Cape Tres Puntas to the point latitude 34¡ãS, longitude 50 ¡ãW, thence the
parallel of latitude 34 ¡ãS to longitude 17 ¡ãE, thence the rhumb line to
the point latitude 35 ¡ã10¡äS, longitude 20 ¡ãE, thence the rhumb line to
the point latitude 34 ¡ãS, longitude 28 ¡ãE, thence along the rhumb line
to the point latitude 35 ¡ã30¡äS, longitude 118¡ãE, and thence the rhumb
line to Cape Grim on the northwest coast of Tasmania; thence along the
north and east coasts of Tasmania to the southernmost point of Bruny
Island, thence the rhumb line to Black Rock Point on Stewart Island,
thence the rhumb line to the point latitude 47 ¡ãS, longitude 170¡ãE,
thence along the rhumb line to the point latitude 33 ¡ãS, longitude 170¡ã
W, and thence the parallel of latitude 33 ¡ãS to the west coast of the
American continent.
Seasonal Periods:
Winter: 16 April to 15 October.
Summer: 16 October to 15 April.
REGULATION 48 Tropical Zone
(1) Northern Boundary of the Tropical Zone
The northern boundary of the Tropical Zone is
the parallel of latitude 13¡ãN from the east coast of the American
continent to longitude 60 ¡ãW, thence the rhumb line to the point latitude
10 ¡ãN, longitude 58 ¡ãW, thence the parallel of latitude 10 ¡ãN to
longitude 20 ¡ãW, thence the meridian of longitude 20¡ãW to latitude 30¡ãN
and thence the parallel of latitude 30¡ãN to the west coast of Africa;
from the east coast of Africa the parallel of latitude 8¡ãN to longitude
70 ¡ãE, thence the meridian of longitude 70¡ãE to latitude 13¡ãN, thence
the parallel of latitude 13 ¡ãN to the west coast of India; thence the
south coast of India to latitude 10¡ã30¡äN on the east coast of India,
thence the rhumb line to the point latitude 9 ¡ãN, longitude 82 ¡ãE,
thence the meridian of longitude 82 ¡ãE to latitude 8 ¡ãN, thence the
parallel of latitude 8¡ãN to the west coast of Malaysia, thence the coast
of South-East Asia to the east coast of Vietnam at latitude 10¡ãN, thence
the parallel of latitude 10 ¡ãN to longitude 145¡ãE, thence the meridian
of longitude 145 ¡ãE to latitude 13¡ãN and thence the parallel of latitude
13¡ãN to the west coast of the American continent.
Saigon is to be considered as being on the boundary line of the
Tropical Zone and the Seasonal Tropical Area.
(2) Southern Boundary of the Tropical Zone
The southern boundary of the Tropical Zone is
the rhumb line from the Port of Santos, Brazil, to the point where
the meridian of longitude 40¡ãW intersects the Tropic of Capricorn; thence
the Tropic of Capricorn to the west coast of Africa; from the east coast
of Africa the parallel of latitude 20 ¡ãS to the west coast of Madagascar,
thence the west and north coasts of Madagascar to longitude 50 ¡ãE, thence
the meridian of longitude 50¡ãE to latitude 10¡ãS, thence the parallel of
latitude 10 ¡ãS to longitude 98 ¡ãE, thence the rhumb line to Port Darwin,
Australia, thence the coasts of Australia and Wessel Island eastwards to
Cape Wessel, thence the parallel of latitude 11¡ãS to the west side of
Cape York; from the east side of Cape York the parallel of latitude 11¡ãS
to longitude 150¡ãW, thence the rhumb line to the point latitude 26 ¡ãS,
longitude 75 ¡ãW, and thence the rhumb line to the west coast of the
American continent at latitude 30 ¡ãS.
Coquimbo and Santos are to be considered as being on the boundary line
of the Tropical and Summer Zones.
(3) Areas to be included in the Tropical Zone
The following areas are to be treated as included in the Tropical Zone
(a) The Suez Canal, the Red Sea and the Gulf of Aden, from Port
Said to the meridian of longitude 45 ¡ãE.
Aden and Berbera are to be considered as being on the boundary
line of the Tropical Zone and the Seasonal Tropical Area.
(b) The Persian Gulf to the meridian of longitude 59¡ãE.
(c) The area bounded by the parallel of latitude 22 ¡ãS from the
east coast of Australia to the Great Barrier Reef, thence the Great
Barrier Reef to latitude 11¡ãS. The northern boundary of the area is the
southern boundary of the Tropical Zone.
REGULATION 49 Seasonal Tropical Areas
The following are Seasonal Tropical Areas:
(1) In the North Atlantic
An area bounded
on the north by the rhumb line from Cape Catoche, Yucatan, to Cape
San Antonio, Cuba, the north coast of Cuba to latitude 20¡ãN and thence
the parallel of latitude 20¡ãN to longitude 20 ¡ãW;
on the west by the coast of the American continent;
on the south and east by the northern boundary of the Tropical
Zone.
Seasonal periods:
Tropical: 1 November to 15 July.
Summer: 16 July to 31 October.
(2) In the Arabian Sea
An area bounded
on the west by the coast of Africa, the meridian of longitude 45 ¡ã
E in the Gulf of Aden, the coast of South Arabia and the meridian of
longitude 59¡ãE in the Gulf of Oman;
on the north and east by the coasts of Pakistan and India;
on the south by the northern boundary of the Tropical Zone.
Seasonal periods:
Tropical: 1 September to 31 May.
Summer: 1 June to 31 August.
(3) In the Bay of Bengal
The Bay of Bengal north of the northern boundary of the Tropical
Zone.
Seasonal periods:
Tropical: 1 December to 30 April.
Summer: 1 May to 30 November.
(4) In the South Indian Ocean
(a) An area bounded
on the north and west by the southern boundary of the Tropical
Zone and the east coast of Madagascar;
on the south by the parallel of latitude 20 ¡ãS;
on the east by the rhumb line from the point latitude 20¡ãS,
longitude 50 ¡ãE, to the point latitude 15 ¡ãS, longitude 51 ¡ã30¡äE, and
thence by the meridian of longitude 51 ¡ã30¡äE to latitude 10¡ãS.
Seasonal periods:
Tropical: 1 April to 30 November.
Summer: 1 December to 31 March.
(b) An area bounded
on the north by the southern boundary of the Tropical Zone;
on the east by the coast of Australia;
on the south by the parallel of latitude 15 ¡ãS from longitude
51 ¡ã30¡äE, to longitude 120 ¡ãE and thence the meridian of longitude 120
¡ãE to the coast of Australia;
on the west by the meridian of longitude 51 ¡ã30¡äE.
Seasonal periods:
Tropical: 1 May to 30 November.
Summer: 1 December to 30 April.
(5) In the China Sea
An area bounded
on the west and north by the coasts of Vietnam and China from
latitude 10¡ãN to Hong Kong;
on the east by the rhumb line from Hong Kong to the Port of Sual
(Luzon Island) and the west coasts of the Islands of Luzon, Samar and
Leyte to latitude 10 ¡ãN;
on the south by the parallel of latitude 10 ¡ãN.
Hong Kong and Sual are to be considered as being on the boundary
of the Seasonal Tropical Area and Summer Zone.
Seasonal periods:
Tropical: 21 January to 30 April.
Summer: 1 May to 20 January.
(6) In the North Pacific
(a) An area bounded
on the north by the parallel of latitude 25¡ãN;
on the west by the meridian of longitude 160¡ãE;
on the south by the parallel of latitude 13 ¡ãN;
on the east by the meridian of longitude 130¡ãW.
Seasonal periods:
Tropical: 1 April to 31 October.
Summer: 1 November to 31 March.
(b) An area bounded
on the north and east by the west coast of the American
continent;
on the west by the meridian of longitude 123¡ãW from the coast
of the American continent to latitude 33 ¡ãN and by the rhumb line from
the point latitude 33¡ãN, longitude 123¡ãW, to the point latitude 13 ¡ãN,
longitude 105¡ãW;
on the south by the parallel of latitude 13 ¡ãN.
Seasonal periods:
Tropical: 1 March to 30 June and
1 November to 30 November.
Summer: 1 July to 31 October and
1 December to 28/29 February.
(7) In the South Pacific
(a) The Gulf of Carpentaria south of latitude 11¡ãS.
Seasonal periods:
Tropical: 1 April to 30 November.
Summer: 1 December to 31 March.
(b) An area bounded
on the north and east by the southern boundary of the Tropical
Zone;
on the south by the Tropic of Capricorn from the east coast of
Australia to longitude 150 ¡ãW, thence by the meridian of longitude 150¡ãW
to latitude 20¡ãS and thence by the parallel of latitude 20 ¡ãS to the
point where it intersects the southern boundary of the Tropical Zone;
on the west by the boundaries of the area within the Great
Barrier Reef included in the Tropical Zone and by the east coast of
Australia.
Seasonal periods:
Tropical: 1 April to 30 November.
Summer: 1 December to 31 March.
REGULATION 50 Summer Zones
The remaining areas constitute the Summer Zones.
However, for ships of 100 metres (328 feet) and under in length, the
area bounded
on the north and west by the east coast of the United States;
on the east by the meridian of longitude 68 ¡ã30¡äW from the coast
of the United States to latitude 40¡ãN and thence by the rhumb line to the
point latitude 36 ¡ãN, longitude 73 ¡ãW;
on the south by the parallel of latitude 36 ¡ãN; is a Winter
Seasonal Area.
Seasonal periods:
Winter: 1 November to 31 March.
Summer: 1 April to 31 October.
REGULATION 51 Enclosed Seas
(1) Baltic Sea
This sea bounded by the parallel of latitude of The Skaw in the
Skagerrak is included in the Summer Zones.
However, for ships of 100 metres (328 feet) and under in length,
it is a Winter Seasonal Area.
Seasonal periods:
Winter: 1 November to 31 March.
Summer: 1 April to 31 October.
(2) Black Sea
This sea is included in the Summer Zone.
However, for ships of 100 metres (328 feet) and under in length,
the area north of latitude 44¡ãN is a Winter Seasonal Area.
Seasonal periods:
Winter: 1 December to 28/29 February.
Summer: 1 March to 30 November.
(3) Mediterranean
This sea is included in the Summer Zones.
However, for ships of 100 metres (328 feet) and under in length,
the area bounded
on the north and west by the coasts of France and Spain and the
meridian of longitude 3¡ãE from the coast of Spain to latitude 40¡ãN;
on the south by the parallel of latitude 40 ¡ãN from longitude
3¡ãE to the west coast of Sardinia;
on the east by the west and north coasts of Sardinia from
latitude 40 ¡ãN to longitude 9¡ãE, thence by the meridian of longitude 9¡ã
E to the south coast of Corsica, thence by the west and north coasts of
Corsica to longitude 9¡ãE and thence by the rhumb line to Cape Sicie; is
a Winter Seasonal Area.
Seasonal periods:
Winter: 16 December to 15 March.
Summer: 16 March to 15 December.
(4) Sea of Japan
This sea south of latitude 50 ¡ãN is included in the Summer Zones.
However, for ships of 100 metres (328 feet) and under in length,
the area between the parallel of latitude 50 ¡ãN and the rhumb line from
the east coast of Korea at latitude 38¡ãN to the west coast of Hokkaido,
Japan, at latitude 43¡ã12¡äN is a Winter Seasonal Area.
Seasonal periods:
Winter: 1 December to 28/29 February.
Summer: 1 March to 30 November.
REGULATION 52 The Winter North Atlantic Load Line
The part of the North Atlantic referred to in Regulation 40 (6) (Annex
I) comprises:
(a) that part of the North Atlantic Winter Seasonal Zone II which
lies between the meridians of 15¡ãW and 50¡ãW;
(b) the whole of the North Atlantic Winter Seasonal Zone I, the
Shetland Islands to be considered as being on the boundary.
ANNEX III: CERTIFICATES INTERNATIONAL LOAD LINE CERTIFICATE (1966)
(Official seal)
Issued under the provisions of the International Convention on Load
Lines, 1966, under the authority of the Government of
(full official designation of the country)
-------------------
by (full official designation of the competent person or
organization recognized under
-------------------
the provisions of the International Convention on Load Lines, 1966)
-------------------
|---------------------------
| Distinctive | Length (L) as |
| Name of ship | Port of registry |
| number or letters | defined in Article 2 (8) |
|------|-------|-------|-------|
| | |
| | |
| | |
|---------------------------
Freeboard assigned as: Type of ship
Type `A'
A new ship Type `B'
{ {Type `B' with reduced freeboard
An existing ship Type `B' with increased freeboard
Freeboard from deck line Load line
Tropical
mm. (inches) (T) mm. (inches) above (S)
Summer
mm. (inches) (S) Upper edge of line through centre of ring
Winter
mm. (inches) (W) mm. (inches) below (S)
Winter North Atlantic
mm. (inches) (WNA) mm. (inches) below (S)
Timber-Tropical
mm. (inches) (LT) mm. (inches) above (LS)
Timber-Summer
mm. (inches) (LS) mm. (inches) above (S)
Timber-Winter
mm. (inches) (LW) mm. (inches) below (LS)
Timber-Winter North Atlantic
mm. (inches) (LWNA) mm. (inches) below (LS)
Note: Freeboards and load lines which are not applicable need not be
entered on the certificate.
Allowance for fresh water for all freeboards other than timber
mm. (inches). For timber freeboard mm.
(inches).
The upper edge of the deck line from which these freeboards are
measured is mm. (inches) deck at side.
Date of initial or periodical survey .
This is to certify that this ship has been surveyed and that the
freeboards have been assigned and load lines shown above have been marked
in accordance with the International Convention on Load Lines, 1966.
This certificate is valid until , subject to
periodical inspections in accordance with Article 14 (1) (c) of the
Convention.
Issued at .
(place of issue of certificate)
19
(date of issue) (signature of official issuing the certificate) and/or
(seal of issuing authority)
If signed, the following paragraph is to be added:
The undersigned declares that he is duly authorized by the said
Government to issue this certificate.
(Signature)
Notes:
1. When a ship departs from a port situated on a river or inland
waters, deeper loading shall be permitted corresponding to the weight of
fuel and all other materials required for consumption between the point of
departure and the sea.
2. When a ship is in fresh water of unit density the appropriate load
line may be submerged by the amount of the fresh water allowance shown
above. Where the density is other than unity, an allowance shall be made
proportional to the difference between 1.025 and the actual density.
Reverse of Certificate
This is to certify that at a periodical inspection required by Article
14 (1) (c) of the Convention, this ship was found to comply with the
relevant provisions of the Convention.
| Place Date
| Signature and/or Seal of issuing authority.
| Place Date
| Signature and/or Seal of issuing authority.
| Place Date
| Signature and/or Seal of issuing authority.
| Place Date
| Signature and/or Seal of issuing authority.
The provisions of the Convention being fully complied with by this
ship, the validity of this certificate is, in accordance with Article 19
(2) of the Convention, extended until .
Place
Date
Signature and/or Seal of issuing authority.
INTERNATIONAL LOAD LINE EXEMPTION CERTIFICATE
(Official seal)
Issued under the provisions of the International Convention on Load
Lines, 1966, under the authority of the Government of
(full official designation of the country)
-------------------
by (full official designation of the competent person or
organization recognized under
-------------------
the provisions of the International Convention on Load Lines, 1966)
-------------------
|-------------------
| Distinctive |
| Name of ship | Port of registry |
| number or letters |
|------|-------|-------|
| |
| |
| |
|-------------------
This is to certify that the above-mentioned ship is exempted from the
provisions of the 1966 Convention, under the authority conferred by
Article 6 (2), Article 6 (4) of the Convention referred to above.
The provisions of the Convention from which the ship is exempted under
Article 6 (2) are:
|
|
|
|
The voyage for which exemption is granted under Article 6 (4) is:
From:
To:
Conditions, if any, on which the exemption is granted under either
Article 6 (2) or Article 6 (4):
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This certificate is valid until
, where appropriate, to periodical inspections in accordance
with Article 14 (1) (c) of the Convention.
Issued at
(place of issue of certificate)
| 19
(date of issue)
(Signature of official issuing the certificate) and/or
(seal of issuing authority)
If signed the following paragraph is to be added:
The undersigned declares that he is duly authorized by the said
Government to issue this certificate.
(Signature)
Reverse of Certificate
This is to certify that this ship continues to comply with the
conditions under which this exemption was granted.
| Place Date
| Signature and/or Seal of issuing authority.
| Place Date
| Signature and/or Seal of issuing authority.
| Place Date
| Signature and/or Seal of issuing authority.
| Place Date
| Signature and/or Seal of issuing authority.
This ship continues to comply with the conditions under which this
exemption was granted and the validity of this certificate is, in
accordance with Article 19 (4) (a) of the Convention, extended
until
| Place Date
Signature and/or Seal of issuing authority.
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