| 1 | 2 |
THE PROTOCOL OF 1988 RELATING TO THE INTERNATIONAL CONVENTION ONLOAD LINES, 1966 AND INTERNATIONAL CONVENTION ON LOAD LINES, 1966 REVISEDBY THE PROTOCOL OF 1988
THE PROTOCOL OF 1988 RELATING TO THE INTERNATIONAL CONVENTION ONLOAD LINES, 1966 AND INTERNATIONAL CONVENTION ON LOAD LINES, 1966 REVISEDBY THE PROTOCOL OF 1988
Whole document
TABLE OF CONTENTS
THE PROTOCOL OF 1988 RELATING TO THE INTERNATIONAL CONVENTION ON LOAD
LINES, 1966
INTERNATIONAL CONVENTION ON LOAD LINES, 1966 REVISED BY THE PROTOCOL OF
1988
ANNEX I REGULATIONS FOR DETERMINING LOAD LINES
CHAPTER I GENERAL
CHAPTER II CONDITIONS OF ASSIGNMENT OF
FREEBOARD
CHAPTER III FREEBOARDS
CHAPTER IV SPECIAL REQUIREMENTS FOR SHIPS
ASSIGNED TIMBER FREEBOARDS
ANNEX II ZONES, AREAS AND SEASONAL PERIODS
ANNEX III CERTIFICATES
INTERNATIONAL LOAD LINE CERTIFICATE
INTERNATIONAL LOAD LINE EXEMPTION CERTIFICATE
THE PROTOCOL OF 1988 RELATING TO THE INTERNATIONAL CONVENTION ON LOAD LINE
1966
as adopted by the Conference on 11 November 1988
THE PARTIES TO THE PRESENT PROTOCOL,
BEING PARTIES to the International Convention on Load Lines, 1966,
done at London on 5 April 1966,
RECOGNIZING the significant contribution which is made by the
above-mentioned Convention to the promotion of the safety of ships and
property at sea and the lives of persons on board,
RECOGNIZING ALSO the need to improve further the technical provisions
of the above-mentioned Convention,
RECOGNIZING FURTHER the need for the introduction into the
above-mentioned Convention of provisions for survey and certification
harmonized with corresponding provisions in other international
instruments,
CONSIDERING that these needs may best be met by the conclusion of a
Protocol relating to the International Convention on Load Lines, 1966,
HAVE AGREED as follows:
ARTICLE I General obligations
1 The Parties to the present Protocol undertake to give effect to the
provisions of the present Protocol and the Annexes hereto, which shall
constitute an integral part of the present Protocol. Every reference to
the present Protocol constitutes at the same time a reference to the
Annexes hereto.
2 As between the Parties to the present Protocol, the provisions of
the International Convention on Load Lines, 1966 (hereinafter referred to
as "the Convention"), except article 29, shall apply subject to the
modifications and additions set out in the present Protocol.
3 With respect to ships entitled to fly the flag of a State which is
not a Party to the Convention and the present Protocol, the Parties to the
present Protocol shall apply the requirements of the Convention and the
present Protocol as may be necessary to ensure that no more favourable
treatment is given to such ships.
ARTICLE II Existing certificates
1 Notwithstanding any other provisions of the present Protocol, any
International Load Line Certificate which is current when the present
Protocol enters into force in respect of the Government of the State whose
flag the ship is entitled to fly shall remain valid until it expires.
2 A Party to the present Protocol shall not issue certificates under,
and in accordance with, the provisions of the International Convention on
Load Lines, 1966, as adopted on 5 April 1966.
ARTICLE III Communication of information
The Parties to the present Protocol undertake to communicate to, and
deposit with, the Secretary-General of the International Maritime
Organization (hereinafter referred to as "the Organization"):
(a) the text of laws, decrees, orders and regulations and other
instruments which have been promulgated on the various matters within the
scope of the present Protocol;
(b) a list of nominated surveyors or recognized organizations
which are authorized to act on their behalf in the administration of load
line matters for circulation to the Parties for information of their
officers, and a notification of the specific responsibilities and
conditions of the authority delegated to those nominated surveyors or
recognized organizations; and
(c) a sufficient number of specimens of their certificates issued
under the provisions of the present Protocol.
ARTICLE IV Signature, ratification, acceptance, approval and ac-cession
1 The present Protocol shall be open for signature at the Headquarters
of the Organization from 1 March 1989 to 28 February 1990 and shall
thereafter remain open for accession. Subject to the provisions of
paragraph 3, States may express their consent to be bound by the present
Protocol by:
(a) signature without reservation as to ratification, acceptance
or approval; or
(b) signature subject to ratification, acceptance or approval,
followed by ratification, acceptance or approval; or
(c) accession.
2 Ratification, acceptance, approval or accession shall be effected by
the deposit of an instrument to that effect with the Secretary-General of
the Organization.
3 The present Protocol may be signed without reservation, ratified,
accepted, approved or acceded to only by States which have signed without
reservation, accepted or acceded to the Convention.
ARTICLE V Entry into force
1 The present Protocol shall enter into force twelve months after the
date on which both the following conditions have been met:
(a) not less than fifteen States, the combined merchant fleets of
which constitute not less than fifty per cent of the gross tonnage of the
world's merchant shipping, have expressed their consent to be bound by it
in accordance with article IV, and
(b) the conditions for the entry into force of the Protocol of
1988 relating to the International Convention for the Safety of Life at
Sea, 1974 have been met, provided that the present Protocol shall not
enter into force before 1 February 1992.
2 For States which have deposited an instrument of ratification,
acceptance, approval or accession in respect of the present Protocol after
the conditions for entry into force thereof have been met but prior to the
date of entry into force, the ratification, acceptance, approval or
accession shall take effect on the date of entry into force of the present
Protocol or three months after the date of deposit of the instrument,
whichever is the later date.
3 Any instrument of ratification, acce
4 After the date on which an amendment to the present Protocol or an
amendment, as between the Parties to the present Protocol, to the
Convention is deemed to have been accepted under article VI, any
instrument of ratification, acceptance, approval or accession deposited
shall apply to the present Protocol or the Convention as amended.
ARTICLE VI Amendments
1 The present Protocol and, as between the Parties to the present
Protocol, the Convention may be amended by either of the procedures
specified in the following paragraphs.
2 Amendment after consideration within the Organization:
(a) Any amendment proposed by a Party to the present Protocol
shall be submitted to the Secretary-General of the Organization, who shall
then circulate it to all Members of the Organization and all Contracting
Governments to the Convention at least six months prior to its
consideration.
(b) Any amendment proposed and circulated as above shall be
referred to the Maritime Safety Committee of the Organization for
consideration.
(c) States which are Parties to the present Protocol, whether or
not Members of the Organization, shall be entitled to participate in the
proceedings of the Maritime Safety Committee for the consideration and
adoption of amendments.
(d) Amendments shall be adopted by a two-thirds majority of the
Parties to the present Protocol present and voting in the Maritime Safety
Committee expanded as provided for in subparagraph (c) (hereinafter
referred to as "the expanded Maritime Safety Committee") on condition that
at least one third of the Parties shall be present at the time of voting.
(e) Amendments adopted in accordance with subparagraph (d) shall
be communicated by the Secretary-General of the Organization to all
Parties to the present Protocol for acceptance.
(f) (i) An amendment to an article or Annex A to the present
Protocol or an amendment, as between Parties to the present Protocol, to
an article of the Convention, shall be deemed to have been accepted on
the date on which it is accepted any two thirds of the Parties to the
present Protocol.
(ii) An amendment to Annex B to the present Protocol or an
amendment, as between Parties to the present Protocol, to an Annex to the
Convention, shall be deemed to have been accepted:
(aa) at the end of two years from the date on which it is
communicated to Parties to the present Protocol for acceptance; or
(bb) at the end of a different period, which shall not be
less than one year, if so determined at the time of its adoption by a
two-thirds majority of the Parties present and voting in the expanded
Maritime Safety Committee. However, if within the specified period either
more than one third of the Parties, or Parties the combined merchant
fleets of which constitute not less than fifty per cent of the gross
tonnage of all the merchant fleets of all Parties, notify the
Secretary-General of the Organization that they object to the amendment,
it shall be deemed not to have been accepted.
(g) (i) An amendment referred to in subparagraph (f) (i) shall
enter into force with respect to those Parties to the present Protocol
which have accepted it, six months after the date on which it is deemed to
have been accepted, and with respect to each Party which accepts it after
that date, six months after the date of that Party's acceptance.
(ii) An amendment referred to in subparagraph (f) (ii) shall
enter into force with respect to all Parties to the present Protocol,
except those which have objected to the amendment under that subparagraph
and which have not withdrawn such objections, six months after the date on
which it is deemed to have been accepted. However, before the date set for
entry into force, any Party may give notice to the Secretary-General of
the Organization that it exempts itself from giving effect to that
amendment for a period not longer than one year from the date of its entry
into force, or for such longer period as may be determined by a two-thirds
majority of the Parties present and voting in the expanded Maritime Safety
Committee at the time of the adoption of the amendment.
3 Amendment by a Conference:
(a) Upon the request of a Party to the present Protocol concurred
in by at least one third of the Parties, the Organization shall convene a
Conference of Parties to consider amendments to the present Protocol and
the Convention.
(b) Every amendment adopted by such a Conference by a two-thirds
majority of the Parties present and voting shall be communicated by the
Secretary-General of the Organization to all Parties for acceptance.
(c) Unless the Conference decides otherwise, the amendment shall
be deemed to have been accepted and shall enter into force in accordance
with the procedures specified in subparagraphs 2 (f) and 2 (g)
respectively, provided that references in these paragraphs to the expanded
Maritime Safety Committee shall be taken to mean references to the
Conference.
4 (a) A Party to present Protocol which has accepted an amendment
referred to in subparagraph 2(f) (ii) which has entered into force shall
not be obliged to extend the benefit of the present Protocol in respect of
the certificates issued to a ship entitled to fly the flag of a State
Party which, pursuant to the provisions of that subparagraph, has
objected to the amendment and has not withdrawn such an objection, in so
far as such certificates relate to matters covered by the amendment in
question.
(b) A Party to the present Protocol which has accepted an
amendment referred to in subparagraph 2 (f) (ii) which has entered into
force shall extend the benefit of the present Protocol in respect of the
certificates issued to a ship entitled to fly the flag of a Stage Party
which, pursuant to the provisions of subparagraph 2 (g) (ii), has notified
the Secretary-General of the Organization that it exempts itself from
giving effect to the amendment.
5 Unless expressly provided otherwise, any amendment made under this
article which relates 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 enters into
force.
6 Any declaration of acceptance of, or objection to, an amendment or
any notice given under subparagraph 2 (g) (ii) shall be submitted in
writing to the Secretary-General of the Organization, who shall inform
all Parties to the present Protocol of any such submission and the date of
its receipt.
7 The Secretary-General of the Organization shall inform all Parties
to the present Protocol of any amendments which enter into force under
this article, together with the date on which each such amendment enters
into force.
ARTICLE VII Denunciation
1 The present Protocol may be denounced by any Party at any time after
the expiry of five years from the date on which the present Protocol
enters into force for that Party.
2 Denunciation shall be effected by the deposit of an instrument of
denunciation with the Secretary-General of the Organization.
3 A denunciation shall take effect one year, or such longer period as
may be specified in the instrument of denunciation, after its receipt by
the Secretary-General of the Organization.
4 A denunciation of the Convention by a Party shall be deemed to be a
denunciation of the present Protocol by that Party. Such denunciation
shall take effect on the same date as denunciation of the Convention takes
effect according to paragraph (3) of article 30 of the Convention.
ARTICLE VIII Depositary
1 The present Protocol shall be deposited with the Secretary-General
of the Organization (hereinafter referred to as "the depositary").
2 The depositary shall:
(a) inform the Governments of all States which have signed the
present Protocol or acceded thereto of:
(i) each new signature or deposit of an instrument of
ratification, acceptance, approval or accession, together with the date
thereof;
(ii) the date of entry into force of the present Protocol;
(iii) the deposit of any instrument of denunciation of the
present Protocol together with the date on which it was received and the
date on which the denunciation takes effect;
(b) transmit certified true copies of the present Protocol to the
Governments of all States which have signed the present Protocol or
acceded thereto.
3 As soon as the present Protocol enters into force, a certified true
copy thereof shall be transmitted by the depositary to the Secretariat of
the United Nations for registration and publication in accordance with
Article 102 of the Charter of the United Nations.
ARTICLE IX Languages
The present Protocol is established in a single original in the
Arabic, Chinese, English, French, Russian and Spanish languages, each
text being equally authentic.
DONE AT LONDON this eleventh day of November one thousand nine hundred
and eighty eight.
IN WITNESS WHEREOF the undersigned *, being duly authorized by their
respective Governments for that purpose, have signed the present Protocol.
[* *(c) omitted.]
INTERNATIONAL CONVENTION ON LOAD LINES, 1966 REVISED BY THE PROTOCOL OF
1988
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. Where the stem contour is
concave above the waterline at 85% of the least moulded depth, both the
forward terminal of the total length and the fore-side of the stem
respectively shall be taken at the vertical projection to that waterline
of the aftermost point of the stem contour (above that waterline). In
ships designed with a rake of keel the waterline on which this length is
measured shall be paralleled to the designed waterline.
(9) "Anniversary date" means the day and the month of each year which
will correspond to the date of expiry of the relevant certificate.
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 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, unless expressly provided
otherwise, are 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 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 Rasa (Cabo San Antonio), 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 Governments 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. 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 Surveys and Marking
The surveys 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 surveys 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 surveys and marking.
Article 14 Initial, renewal and annual surveys
(1) A ship shall be subjected to the surveys specified below:
(a) An initial survey before the ship is put in service, which
shall include a complete inspection of its structure and equipment in so
far as the ship is covered by the present Convention. The survey shall be
such as to ensure that the arrangements, materials and scantlings fully
comply with the requirements of the present Convention.
(b) A renewal survey at intervals specified by the Administration
but not exceeding 5 years, except where paragraphs (2), (5), (6) and (7)
of article 19 are applicable, which shall be such as to ensure that the
structure, equipment, arrangements, materials and scantlings fully comply
with the requirements of the present Convention.
(c) An annual survey within 3 months before or after each
anniversary date of the certificate to ensure that:
(i) alterations have not been made to the hull or
superstructures which would affect the calculations determining the
position of the load line;
(ii) the fittings and appliances for the protection of
openings, guard rails, freeing ports and means of access to crew's
quarters are maintained in an effective condition;
(iii) the freeboard marks are correctly and permanently
indicated;
(iv) the information required by regulation 10 is provided.
(2) The annual surveys referred to in paragraph (1) (c) of this
article shall be endorsed on the International Load Line Certificate or
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 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.
Article 17 Issue or endorsement of Certificate by another Govern-ment
(1) A Contracting Government may, at the request of another
Contracting Governments, 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 to
the ship and, where appropriate, endorse or authorize the endorsement of
the certificate on 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 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
The certificates shall be drawn up in the form corresponding to the
model given in Annex III to the present Convention. If the language used
is neither English nor French, the text shall include a translation into
one of these languages.
Article 19 Duration and Validity of Certificates
(1) An International Load Line Certificate shall be issued for a
period specified by the Administration, which shall not exceed 5 years.
(2) (a) Notwithstanding the requirements of paragraph (1), when the
renewal survey is completed within 3 months before the expiry date of the
existing certificate, the new certificate shall be valid from the date of
completion of the renewal survey to a date not exceeding 5 years from the
date of expiry of the existing certificate.
(b) When the renewal survey is completed after the expiry date of
the existing certificate, the new certificate shall be valid from the
date of completion of the renewal survey to a date not exceeding 5 years
from the date of expiry of the existing certificate.
(c) When the renewal survey is completed more than 3 months before
the expiry date of the existing certificate, the new certificate shall be
valid from the date of completion of the renewal survey to a date not
exceeding 5 years from the date of completion of the renewal survey.
(3) If a certificate is issued for a period of less than 5 years, the
Administration may extend the validity of a certificate beyond the expiry
date to the maximum period specified in paragraph (1), provided that the
annual surveys referred to in article 14 applicable when a certificate is
issued for a period of 5 years are carried out as appropriate.
(4) If, after the renewal survey referred to in paragraph (1) (b) of
article 14, a new certificate cannot be issued to the ship before the
expiry date of the existing certificate, the person or organization
carrying out the survey may extend the validity of the existing
certificate for a period which shall not exceed 5 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,
materials or scantlings, which affect the ship's freeboard.
(5) If a ship at the time when a certificate expires is not in a port
in which it is to be surveyed, the Administration may extend the period
of validity of the certificate but this extension shall be granted only
for the purpose of allowing the ship to complete its voyage to the port in
which it is to be surveyed, and then only in cases where it appears proper
and reasonable to do so. No certificate shall be extended for a period
longer than 3 months, and a ship to which an extension is granted shall
not, on its arrival in the port in which it is to be surveyed, be entitled
by virtue of such extension to leave that port without having a new
certificate. When the renewal survey is completed, the new certificate
shall be valid to a date not exceeding 5 years from the date of expiry of
the existing certificate before the extension was granted.
(6) A certificate issued to a ship engaged on short voyages with has
not been extended under the foregoing provisions of this article may be
extended by the Administration for a period of grace of up to one month
from the date of expiry stated on it. When the renewal survey is completed
the new certificate shall be valid to a date not exceeding 5 years from
the date of expiry of the existing certificate before the extension was
granted.
(7) In special circumstances, as determined by the Administration, a
new certificate need not be dated from the date of expiry of the existing
certificate as required by paragraphs (2), (5) and (6). In these special
circumstances, the new certificate shall be valid to a date not exceeding
5 years from the date of completion of the renewal survey.
(8) If an annual survey is completed before the period specified in
article 14 then:
(a) the anniversary date shown on the certificate shall be amended
by endorsement to a date which shall not be more than 3 months later than
the date on which the survey was completed;
(b) the subsequent annual survey required by article 14 shall be
completed at the intervals prescribed by that article using the new
anniversary date;
(c) the expiry date may remain unchanged provided one or more
annual surveys are carried out so that the maximum intervals between the
surveys prescribed by article 14 are not exceeded.
(9) An International Load Line Certificate shall cease to be valid 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 paragraph (1) (c) of
article 14 are not maintained in an effective condition;
(c) the certificate is not endorsed to show that the ship has been
surveyed as provided in paragraph (1) (c) of article 14;
(d) the structural strength of the ship is lowered to such an
extent that the ship is unsafe.
(10) (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 5 years. Such certificate shall be
subject to a renewal, endorsement, extension and cancellation procedure
similar to that provided for an International Load Line Certificate 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.
(11) 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 certificates 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 purpose covered by
the present Convention as having the same force as certificates issued by
them.
Article 21 Control
(1) Ships holding a certificate issued 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 these is a valid
International Load Line Certificate 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 of the
matters set out in subparagraphs (a) and (b) of paragraph (9) 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 Convention
(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 even 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 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.
(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.
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 Ship
The Administration shall satisfy itself that the general structural
strength of the ship 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
inclusive 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 10-26 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.
(6) Regulation 22(2) and Regulation 27 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 Protocol of 1988 Relating to the
International Convention on Load Lines, 1966 enters into force.
(7) New ships, other than those specified in paragraph (6), shall
comply either with regulation 27 of the present Convention (as amended) or
with regulation 27 of the International Convention on Load Lines, 1966 (as
adopted on 5 April 1966), as determined by the Administration.
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.
Where the stem contour is concave above the waterline at 85% of the least
moulded depth, both the forward terminal of the total length and the
fore-side of the stem respectively shall be taken at the vertical
projection to that waterline of the aftermost point of the stem contour
(above that waterline). In ships designed with a rake of keel the
waterline on which this length is measured shall be parallel to 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 form 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 deck and
sides, 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)
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 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
|-------|
| ¡÷ |
| C = ----; | where
| 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 in length and 25
millimetres 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.
Regulation 5 Load Line Mark
The Load Line Mark shall consist of a ring 300 millimetres in outside
diameter and 25 millimetres wide which is intersected by a horizontal line
450 millimetres in length and 25 millimetres 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.
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 in length and
25 millimetres in breadth which extend forward of, unless expressly
provided otherwise, and at right angles to, a vertical line 25 millimetres
in breadth marked at a distance 540 millimetres 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 in
length and 25 millimetres in breadth which extend abaft unless expressly
provided otherwise, and are at right angles to, a vertical line 25
millimetres in breadth marked at a distance 540 millimetres 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 Tropical Fresh Water Timber Load Line 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 Authority's
name, each measuring approximately 115 millimetres in height and 75
millimetres in width.
Regulation 8 Detail 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 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 considers it to be unnecessary.
(2) Every ship which is not required under the International
Convention for Safety of Life at Sea in force to undergo an inclining test
upon its completion shall:
(a) be so inclined and the actual displacement and position of the
centre of gravity shall be determined for the light ship condition;
(b) have supplied for the use of its master such reliable
information in an approved form as is necessary to enable him by rapid and
simple processes to obtain accurate guidance as to the stability of the
ship under all condition likely to be encountered in normal service;
(c) carry on board at all times its approved stability information
together with evidence that the information has been approved by the
Administration;
(d) if the Administration so approves, have its inclining test on
completion dispensed with, provided basic stability data are available
from the inclining test of a sister ship and it is shown to the
satisfaction of the Administration that reliable stability information for
the ship can be obtained from such basic data.
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
that 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 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 if in position 1.
450 millimetres if in position 2.
Hatchway Covers
(2) The width of each bearing surface for hatchway covers shall be at
least 65 millimetres.
(3) Where covers are made of wood, the finished thickness shall be at
least 60 millimetres in association with a span of not more than 1.5
metres.
(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 on hatchways in position 1, and not less than 1.30 metric tons per
square metre 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 for ships of 24 metres in length and shall be
not less than 1.75 metric tons per square metre for ships of 100 metres in
length. The corresponding loads on hatchways in position 2 may be reduced
to 0.75 metric tons per square metre and 1. 30 metric tons per square
metre respectively. In all cases values at intermediate lengths shall be
obtained by linear 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 on hatchways in position 1 and not
less than 1.30 metric tons per square metre 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 are 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 in length the
requirements of paragraph (5) of this Regulation are 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 if that be greater.
For ships of not more than 100 metres 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 that 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 wide and spaced not more than 600 millimetres
centre to centre; the cleats along each side or end shall be not more than
150 millimetres 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 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 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 Gaskets and 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 on hatchways in position 1, and not less than 1.30 metric tons per
square metre 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
if that be greater. The provisions of Regulation 15 (5) are applicable for
ships of not more than 100 metres 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 above the deck if in
position 1, and at least 380 millimetres 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. In position 2 it shall
be at least 380 millimetres.
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
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 above the deck, and in position 2 the coamings of which
extend to more than 2.3 metres 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 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 above the deck; in position 2 the coamings shall be
of a height at least 760 millimetres 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 on the
freeboard deck and 450 millimetres 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
watertightness 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, except as provided in paragraph (2), be fitted with
efficient and accessible means for preventing water from passing inboard.
Normally each separate discharge shall have one automatic non-return 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) Scuppers led through the shell from enclosed superstructures used
for the carriage of cargo shall be permitted only where the edge of the
freeboard deck is not immersed when the ship heels 5¡ã either way. In
other cases the drainage shall be led inboard in accordance with the
requirements of the International Convention for the Safety of Life at Sea
in force.
(3) In manned machinery spaces main and auxiliary sea inlets and
discharges in connexion 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.
(4) Scuppers and discharge pipes originating at any level and
penetrating the shell either more than 450 millimetres below the freeboard
deck or less than 600 millimetres above the summer load waterline shall be
provided with a non-return valve at the shell. This valve, unless required
by paragraph (2), may be omitted if the piping is of substantial
thickness.
(5) Scuppers leading from superstructures or deckhouses not fitted
with doors complying with the requirements of Regulation 12 shall be led
overboard.
(6) All shell fittings, and the valves 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 summer load line
(or summer timber load line, if assigned) or 500 millimetres, 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 on-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 metres 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.
(2) In ships with no sheer the area calculated according to paragraph
(1) shall be increased by 50 per cent. Where the sheer is less than the
standard the percentage shall be obtained by linear interpolation.
(3) Where a ship fitted with a trunk 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 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 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. The other courses shall be not more than 380
millimetres 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:
(a) is designed to carry only liquid cargoes in bulk;
(b) has a high integrity of the exposed deck with only small
access openings to cargo compartments, closed by watertight gasketed
covers of steel or equivalent material; and
(c) has low permeability of loaded cargo compartments.
(3) A type `A' ship if over 150 m in length to which a freeboard less
than type `B' has been assigned, when loaded in accordance with the
requirements of paragraph (11), shall be able to withstand the flooding
of any compartment or compartments, with an assumed permeability of 0.95,
consequent upon the damage assumptions specified in paragraph (12), and
shall remain afloat in a satisfactory condition of equilibrium as
specified in paragraph (13). In such a ship the machinery space shall be
treated as a floodable compartment, but with a permeability of 0.85.
(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) shall be considered as type `B' ships.
(6) 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:
Freeboard increase over tabular freeboard for type `B' ships, for
ships with hatch covers not complying with Regulation 15(7) or Regulation
16.
(7) Type `B' ships, which in position 1 have hatchways fitted with
hatch covers complying with the requirements of Regulation 15 (7) or
Regulation 16, shall, except as provided in paragraphs (8) to (13)
inclusive of this regulation, be assigned freeboards based on table B of
Regulation 28.
(8) Any type `B' ship of over 100 m in length may be assigned
freeboards less than those required under paragraph (7), 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; and
|----------------------
| Length of Freeboard Length of Freeboard Length of Freeboard |
| ship increase ship increase ship increase |
| (metres) (millimetres) (metres) (millimetres) (metres) (millimetres) |
|----------------------|
| 108 and below 50 139 175 170 290 |
| 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 m in length shall be dealt with by the
Administration.
(d) the ship, when loaded in accordance with the requirements of
paragraph (11), shall be able to withstand the flooding of any compartment
or compartments, with an as summed permeability of 0.95, consequent upon
the damage assumptions specified in paragraph (12), and shall remain
afloat in a satisfactory condition of equilibrium, as specified in
paragraph (13). In such a ship, if over 150 m in length, the machinery
space shall be treated as a floodable compartment, but with a permeability
of 0.85.
(9) In calculating the freeboards for type `B' ships which comply with
the requirements of paragraph (8), (11), (12) and (13), the values from
table B of regulation 28 shall not be reduced by more than 60% of the
difference between the B and A tabular values for the appropriate ship
lengths.
(10) (a) The reduction in tabular freeboard allowed under paragraph
(9) 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:
(i) regulation 26, other than paragraph (4), as if it were a
type `A' ship;
(ii) paragraph (8), (11) and (13) of this regulation; and
(iii) paragraph (12) of this regulation, provided that
throughout the length of the ship any one transverse bulkhead will be
assumed to be damaged, such that two adjacent fore and aft compartments
shall be flooded simultaneously, except that such damage will not apply to
the boundary bulkheads of a machinery space.
(b) In such a ship, if over 150 m in length, the machinery space
shall be treated as a floodable compartment, but with a permeability of
0.85.
Initial condition of loading
(11) The initial condition of loading before flooding shall be
determined as follows:
(a) The ship is loaded to its summer load waterline on an
imaginary even keel.
(b) When calculating the vertical centre of gravity, the following
principles apply:
(i) Homogeneous cargo is carried.
(ii) All cargo compartments, except those referred to under
(iii), but including compartments intended to be partially filled, shall
be considered fully loaded except that in the case of fluid cargoes each
compartment shall be treated as 98% full.
(iii) If the ship is intended to operate at its summer load
waterline with empty compartments, such compartments shall be considered
empty provided the height of the centre of gravity so calculated is not
less than as calculated under (ii).
(iv) 50% of the individual total capacity of all tanks and
spaces fitted to contain consumable liquids and stores is allowed for. It
shall be assumed that for each type of liquid, at least one transverse
pair or a single centreline tank has maximum free surface, and the tank or
combination of tanks to be taken into account shall be those where the
effect of free surfaces is the greatest; in each tank the centre of
gravity of the contents shall be taken at the centre of volume of the
tank. The remaining tanks shall be assumed either completely empty or
completely filled, and the distribution of consumable liquids between
these tanks shall be effected so as obtain the greatest possible height
above the keel for the centre of gravity.
(v) At an angle of heel of not more than 5¡ã in each
compartment containing liquids, as prescribed in (ii) except that in the
case of compartments containing consumable fluids, as prescribed in (iv),
the maximum free surface effect shall be taken into account.
Alternatively, the actual free surface effects may be used, provided
the methods of calculation are acceptable to the Administration.
(vi) Weights shall be calculated on the basis of the following
values for specific gravities:
salt water 1.025
fresh water 1.000
oil fuel 0.950
diesel oil 0.900
lubricating oil 0.900
Damage assumptions
(12) The following principles regarding the character of the assumed
damage apply:
(a) The vertical extent of damage in all cases is assumed to be from
the base line upwards without limit.
(b) The transverse extent of damage is equal to B/5 or 11.5 m,
whichever is the lesser, measured inboard from the side of the ship
perpendicularly to the centreline at the level of the summer load
waterline.
(c) If damage of a lesser extent than specified in subparagraphs (a)
and (b) results in a more severe condition, such lesser extent shall be
assumed.
(d) Except where otherwise required by paragraph (10) (a), the
flooding shall be confined to a single compartment between adjacent
transverse bulkheads provided the inner longitudinal boundary of the
compartment is not in a position within the transverse extent of assumed
damage. Transverse boundary bulkheads of wing tanks which do not extent
over the full breadth of the ship shall be assumed not to be damaged,
provided they extend beyond the transverse extent of assumed damage
prescribed in subparagraph (b).
If in a transverse bulkhead there are steps or recesses of not more
than 3 m in length located within the transverse extent of assumed damage
as defined in subparagraph (b), such transverse bulkhead may be considered
intact and the adjacent compartment may be floodable singly. If, however,
within the transverse extent of assumed damage there is a step or recess
of more than 3 m in length in a transverse bulkhead, the two compartments
adjacent to this bulkhead shall be considered as flooded. The step formed
by the afterpeak bulkhead and the afterpeak tank top shall not be regarded
as a step for the purpose of this regulation.
(e) Where a main transverse bulkhead is located within the transverse
extent of assumed damage and is stepped in way of a double bottom or side
tank by more than 3 m, the double bottom or side tanks adjacent to the
stepped portion of the main transverse bulkhead shall be considered as
flooded simultaneously. If this side tank has openings, into one or
several holds, such as grain feeding holes, such hold or holds shall be
considered as flooded simultaneously. Similarly in a ship designed for the
carriage of fluid cargoes, if a side tank has openings into adjacent
compartments, such adjacent compartments shall be considered as empty and
as being flooded simultaneously. This provision is applicable even when
such openings are fitted with closing appliances, except in the case of
sluice valves fitted in bulkheads between tanks and where the valves are
controlled from the deck. Manhole covers with closely-spaced bolts are
considered equivalent to the unpierced bulkhead except in the case of
openings in topside tanks making the topside tanks common to the holds.
(f) Where the flooding of any two adjacent fore and compartments is
envisaged, main
|---|
| 2/3 |
transverse watertight bulkheads shall be spaced at least |1/3* L | or
|---|
14.5m, whichever is the lesser, in order to be considered effective. Where
transverse bulkheads are spaced at a lesser distance, one or more of these
bulkheads shall be assumed as nonexistent in order to achieve the minimum
spacing between bulkheads.
Condition of equilibrium
(13) The condition of equilibrium after flooding shall be regarded as
satisfactory provided:
(a) The final waterline after flooding, taking into account sinkage,
heel and trim, is below the lower edge of any opening through which
progressive downflooding may take place. Such openings shall include air
pipes, ventilators and openings which are closed by means of weathertight
doors (even if they comply with Regulation 12) or hatch covers (even if
they comply with Regulation 16 or Regulation 19(4)), and may exclude those
openings closed by means of manhole covers and flush scuttles (which
comply with Regulation 18), cargo hatch covers of the type described in
Regulation 27(2), remotely operated sliding watertight doors, and
sidescuttles of the non-opening type (which comply with Regulation 23).
However, in the case of doors separating a main machinery space from a
steering gear compartment, watertight doors may be of a hinged,
quick-acting type kept closed at sea, whilst not in use, provided also
that the lower sill of such doors is above the summer load waterline.
(b) If pipes, ducts or tunnels are situated within the assumed extent
of damage penetration as defined in paragraph (12) (b), arrangements shall
be made so that progressive flooding cannot thereby extend to compartments
other than those assumed to be floodable in the calculation for each case
of damage.
(c) The angle of heel due to unsymmetrical flooding does not exceed
15¡ã. If no part of the deck is immersed, an angle of heel of up to 17¡ã
may be accepted.
(d) The metacentric height in the flooded condition is positive.
(e) When any part of the deck outside the compartment assumed flooded
in a particular case of damage is immersed, or in any case where the
margin of stability in the flooded condition may be considered doubtful,
the residual stability is to be investigated. It may be regarded as
sufficient if the righting lever curve has a minimum range of 20¡ãbeyond
the position of equilibrium with a maximum righting lever of at least 0.1
m within this range. The area under the righting lever curve within this
range shall be not less than 0.0175 m ¡¤rad. The Administration shall give
consideration to the potential hazard presented by protected or
unprotected openings which may become temporarily immersed within the
range of residual stability.
(f) The Administration is satisfied that the stability is sufficient
during intermediate stages of flooding.
Ships without means of propulsion
(14) A lighter, barge or other ship without independent means of
propulsion shall be assigned a freeboard in accordance with the provisions
of these regulations. Barges which meet the requirements of paragraphs (2)
and (3) may be assigned type `A' freeboards:
(a) The Administration should especially consider the stability of
barges with cargo on the weather deck. Deck cargo can only be carried on
barges to which the ordinary type `B' freeboard is assigned.
(b) However, in the case of barges which are unmanned, the
requirements of Regulations 25, 26 (2), 26 (3) and 39 shall not apply.
(c) Such unmanned barges which have on the freeboard deck only small
access openings closed by watertight gasketed covers of steel or
equivalent material may be assigned a freeboard 25% less than those
calculated in accordance with these Regulations.
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 | 38 | 316 | 52 | 467 |
| 25 | 208 | 39 | 325 | 53 | 478 |
| 26 | 217 | 40 | 334 | 54 | 490 |
| 27 | 225 | 41 | 344 | 55 | 503 |
| 28 | 233 | 42 | 354 | 56 | 516 |
| 29 | 242 | 43 | 364 | 57 | 530 |
| 30 | 250 | 44 | 374 | 58 | 544 |
| 31 | 258 | 45 | 385 | 59 | 559 |
| 32 | 267 | 46 | 396 | 60 | 573 |
| 33 | 275 | 47 | 408 | 61 | 587 |
| 34 | 283 | 48 | 420 | 62 | 600 |
| 35 | 292 | 49 | 432 | 63 | 613 |
| 36 | 300 | 50 | 443 | 64 | 626 |
| 37 | 308 | 51 | 455 | 65 | 639 |
|-----------------------------
TABLE A (continued)
|-----------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres)|
|-----|------|-----|------|-----|----|
| 66 | 653 | 95 | 1059 | 124 | 1528 |
| 67 | 666 | 96 | 1074 | 125 | 1546 |
| 68 | 680 | 97 | 1089 | 126 | 1563 |
| 69 | 693 | 98 | 1105 | 127 | 1580 |
| 70 | 706 | 99 | 1120 | 128 | 1598 |
| 71 | 720 | 100 | 1135 | 129 | 1615 |
| 72 | 733 | 101 | 1151 | 130 | 1632 |
| 73 | 746 | 102 | 1166 | 131 | 1650 |
| 74 | 760 | 103 | 1181 | 132 | 1667 |
| 75 | 773 | 104 | 1196 | 133 | 1684 |
| 76 | 786 | 105 | 1212 | 134 | 1702 |
| 77 | 800 | 106 | 1228 | 135 | 1719 |
| 78 | 814 | 107 | 1244 | 136 | 1736 |
| 79 | 828 | 108 | 1260 | 137 | 1753 |
| 80 | 841 | 109 | 1276 | 138 | 1770 |
| 81 | 855 | 110 | 1293 | 139 | 1787 |
| 82 | 869 | 111 | 1309 | 140 | 1803 |
| 83 | 883 | 112 | 1326 | 141 | 1820 |
| 84 | 897 | 113 | 1342 | 142 | 1837 |
| 85 | 911 | 114 | 1359 | 143 | 1853 |
| 86 | 926 | 115 | 1376 | 144 | 1870 |
| 87 | 940 | 116 | 1392 | 145 | 1886 |
| 88 | 955 | 117 | 1409 | 146 | 1903 |
| 89 | 969 | 118 | 1426 | 147 | 1919 |
| 90 | 984 | 119 | 1442 | 148 | 1935 |
| 91 | 999 | 120 | 1459 | 149 | 1952 |
| 92 | 1014 | 121 | 1476 | 150 | 1968 |
| 93 | 1029 | 122 | 1494 | 151 | 1984 |
| 94 | 1044 | 123 | 1511 | 152 | 2000 |
|-----------------------------
TABLE A (continued)
|-----------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres)|
|-----|------|-----|------|-----|----|
| 153 | 2016 | 182 | 2416 | 211 | 2714 |
| 154 | 2032 | 183 | 2428 | 212 | 2723 |
| 155 | 2048 | 184 | 2440 | 213 | 2732 |
| 156 | 2064 | 185 | 2451 | 214 | 2741 |
| 157 | 2080 | 186 | 2463 | 215 | 2749 |
| 158 | 2096 | 187 | 2474 | 216 | 2758 |
| 159 | 2111 | 188 | 2486 | 217 | 2767 |
| 160 | 2126 | 189 | 2497 | 218 | 1775 |
| 161 | 2141 | 190 | 2508 | 219 | 2784 |
| 162 | 2155 | 191 | 2519 | 220 | 2792 |
| 163 | 2169 | 192 | 2530 | 221 | 2801 |
| 164 | 2184 | 193 | 2541 | 222 | 2809 |
| 165 | 2198 | 194 | 2552 | 223 | 2817 |
| 166 | 2212 | 195 | 2562 | 224 | 2825 |
| 167 | 2226 | 196 | 2572 | 225 | 2833 |
| 168 | 2240 | 197 | 2582 | 226 | 2841 |
| 169 | 2254 | 198 | 2592 | 227 | 2849 |
| 170 | 2268 | 199 | 2602 | 228 | 2857 |
| 171 | 2281 | 200 | 2612 | 229 | 2865 |
| 172 | 2294 | 201 | 2622 | 230 | 2872 |
| 173 | 2307 | 202 | 2632 | 231 | 2880 |
| 174 | 2320 | 203 | 2641 | 232 | 2888 |
| 175 | 2332 | 204 | 2650 | 233 | 2895 |
| 176 | 2345 | 205 | 2659 | 234 | 2903 |
| 177 | 2357 | 206 | 2669 | 235 | 2910 |
| 178 | 2369 | 207 | 2678 | 236 | 2918 |
| 179 | 2381 | 208 | 2687 | 237 | 2925 |
| 180 | 2393 | 209 | 2696 | 238 | 2932 |
| 181 | 2405 | 210 | 2705 | 239 | 2939 |
|-----------------------------
TABLE A (continued)
|-----------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres)|
|-----|------|-----|------|-----|----|
| 240 | 2946 | 269 | 3123 | 298 | 3254 |
| 241 | 2953 | 270 | 3128 | 299 | 3258 |
| 242 | 2959 | 271 | 3133 | 300 | 3262 |
| 243 | 2966 | 272 | 3138 | 301 | 3266 |
| 244 | 2973 | 273 | 3143 | 302 | 3270 |
| 245 | 2979 | 274 | 3148 | 303 | 3274 |
| 246 | 2986 | 275 | 3153 | 304 | 3278 |
| 247 | 2993 | 276 | 3158 | 305 | 3281 |
| 248 | 3000 | 277 | 3163 | 306 | 3285 |
| 249 | 3006 | 278 | 3167 | 307 | 3288 |
| 250 | 3012 | 279 | 3172 | 308 | 3292 |
| 251 | 3018 | 280 | 3176 | 309 | 3295 |
| 252 | 3024 | 281 | 3181 | 310 | 3298 |
| 253 | 3030 | 282 | 3185 | 311 | 3302 |
| 254 | 3036 | 283 | 3189 | 312 | 3305 |
| 255 | 3042 | 284 | 3194 | 313 | 3308 |
| 256 | 3048 | 285 | 3198 | 314 | 3312 |
| 257 | 3054 | 286 | 3202 | 315 | 3315 |
| 258 | 3060 | 287 | 3207 | 316 | 3318 |
| 259 | 3066 | 288 | 3211 | 317 | 3322 |
| 260 | 3072 | 289 | 3215 | 318 | 3325 |
| 261 | 3078 | 290 | 3220 | 319 | 3328 |
| 262 | 3084 | 291 | 3224 | 320 | 3331 |
| 263 | 3089 | 292 | 3228 | 321 | 3334 |
| 264 | 3095 | 293 | 3233 | 322 | 3337 |
| 265 | 3101 | 294 | 3237 | 323 | 3339 |
| 266 | 3106 | 295 | 3241 | 324 | 3342 |
| 267 | 3112 | 296 | 3246 | 325 | 3345 |
| 268 | 3117 | 297 | 3250 | 326 | 3347 |
|-----------------------------
TABLE A (continued)
|-----------------------------
| Length of | Length of | Length of |
| ship | Freeboard | ship | Freeboard | ship | Freeboard |
| (metres) | (millimetres) | (metres) | (millimetres) | (metres) | (millimetres)|
|-----|------|-----|------|-----|----|
| 327 | 3350 | 340 | 3382 | 353 | 3412 |
| 328 | 3353 | 341 | 3385 | 354 | 3414 |
| 329 | 3355 | 342 | 3387 | 355 | 3416 |
| 330 | 3358 | 343 | 3389 | 356 | 3418 |
| 331 | 3361 | 344 | 3392 | 357 | 3420 |
| 332 | 3363 | 345 | 3394 | 358 | 3422 |
| 333 | 3366 | 346 | 3396 | 359 | 3423 |
| 334 | 3368 | 347 | 3399 | 360 | 3425 |
| 335 | 3371 | 348 | 3401 | 361 | 3427 |
| 336 | 3373 | 349 | 3403 | 362 | 3428 |
| 337 | 3375 | 350 | 3406 | 363 | 3430 |
| 338 | 3378 | 351 | 3408 | 364 | 3432 |
| 339 | 3380 | 352 | 3410 | 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
Administration. 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 52 467 80 887 |
| 25 208 53 478 81 905 |
| 26 217 54 490 82 923 |
| 27 225 55 503 83 942 |
| 28 233 56 516 84 960 |
| 29 242 57 530 85 978 |
| 30 250 58 544 86 996 |
| 31 258 59 559 87 1015 |
| 32 267 60 573 88 1034 |
| 33 275 61 587 89 1054 |
| 34 283 62 601 90 1075 |
| 35 292 63 615 91 1096 |
| 36 300 64 629 92 1116 |
| 37 308 65 644 93 1135 |
| 38 316 66 659 94 1154 |
| 39 325 67 674 95 1172 |
| 40 334 68 689 96 1190 |
| 41 344 69 705 97 1209 |
| 42 354 70 721 98 1229 |
| 43 364 71 738 99 1250 |
| 44 374 72 754 100 1271 |
| 45 385 73 769 101 1293 |
| 46 396 74 784 102 1315 |
| 47 408 75 800 103 1337 |
| 48 420 76 816 104 1359 |
| 49 432 77 833 105 1380 |
| 50 443 78 850 106 1401 |
| 51 455 79 868 107 1421 |
|-----------------------------
TABLE B (continued)
|-----------------------------
| Length of Length of Length of |
| ship Freeboard ship Freeboard ship Freeboard |
| (metres) (millimetres) (metres) (millimetres) (metres) (millimetres)|
|-----------------------------|
| 108 1440 137 2043 166 2640 |
| 109 1459 138 2065 167 2660 |
| 110 1479 139 2087 168 2680 |
| 111 1500 140 2109 169 2698 |
| 112 1521 141 2130 170 2716 |
| 113 1543 142 2151 171 2735 |
| 114 1565 143 2171 172 2754 |
| 115 1587 144 2190 173 2774 |
| 116 1609 145 2209 174 2795 |
| 117 1630 146 2229 175 2815 |
| 118 1651 147 2250 176 2835 |
| 119 1671 148 2271 177 2855 |
| 120 1690 149 2293 178 2875 |
| 121 1709 150 2315 179 2895 |
| 122 1729 151 2334 180 2915 |
| 123 1750 152 2354 181 2933 |
| 124 1771 153 2375 182 2952 |
| 125 1793 154 2396 183 2970 |
| 126 1815 155 2418 184 1988 |
| 127 1837 156 2440 185 3007 |
| 128 1859 157 2460 186 3025 |
| 129 1880 158 2480 187 3044 |
| 130 1901 159 2500 188 3062 |
| 131 1921 160 2520 189 3080 |
| 132 1940 161 2540 190 3098 |
| 133 1959 162 2560 191 3116 |
| 134 1979 163 2580 192 3134 |
| 135 2000 164 2600 193 3151 |
| 136 2021 165 2620 194 3167 |
|-----------------------------
TABLE B (continued)
|-----------------------------
| Length of Length of Length of |
| ship Freeboard ship Freeboard ship Freeboard |
| (metres) (millimetres) (metres) (millimetres) (metres) (millimetres)|
|-----------------------------|
| 195 3185 224 3645 253 4058 |
| 196 3202 225 3660 254 4072 |
| 197 3219 226 3675 255 4085 |
| 198 3235 227 3690 256 4098 |
| 199 3249 228 3705 257 4112 |
| 200 3264 229 3720 258 4125 |
| 201 3280 230 3735 259 4139 |
| 202 3296 231 3750 260 4152 |
| 203 3313 232 3765 261 4165 |
| 204 3330 233 3780 262 4177 |
| 205 3347 234 3795 263 4189 |
| 206 3363 235 3808 264 4201 |
| 207 3380 236 3821 265 4214 |
| 208 3397 237 3835 266 4227 |
| 209 3413 238 3849 267 4240 |
| 210 3430 239 3864 268 4252 |
| 211 3445 240 3880 269 4264 |
| 212 3460 241 3893 270 4276 |
| 213 3475 242 3906 271 4289 |
| 214 3490 243 3920 272 4302 |
| 215 3505 244 3934 273 4315 |
| 216 3520 245 3949 274 4327 |
| 217 3537 246 3965 275 4339 |
| 218 3554 247 3978 276 4350 |
| 219 3570 248 3992 277 4362 |
| 220 3586 249 4005 278 4373 |
| 221 3601 250 4018 279 4385 |
| 222 3615 251 4032 280 4397 |
| 223 3630 252 4045 281 4408 |
|-----------------------------
TABLE B (continued)
|-----------------------------
| Length of Length of Length of |
| ship Freeboard ship Freeboard ship Freeboard |
| (metres) (millimetres) (metres) (millimetres) (metres) (millimetres)|
|-----------------------------|
| 282 4420 310 4736 338 5035 |
| 283 4432 311 4748 339 5045 |
| 284 4443 312 4757 340 5055 |
| 285 4455 313 4768 341 5065 |
| 286 4467 314 4779 342 5075 |
| 287 4478 315 4790 343 5086 |
| 288 4490 316 4801 344 5097 |
| 289 4502 317 4812 345 5108 |
| 290 4513 318 4823 346 5119 |
| 291 4525 319 4834 347 5130 |
| 292 4537 320 4844 348 5140 |
| 293 4548 321 4855 349 5150 |
| 294 4560 322 4866 350 5160 |
| 295 4572 323 4878 351 5170 |
| 296 4583 324 4890 352 5180 |
| 297 4595 325 4899 353 5190 |
| 298 4607 326 4909 354 5200 |
| 299 4618 327 4920 355 5210 |
| 300 4630 328 4931 356 5220 |
| 301 4642 329 4943 357 5230 |
| 302 4654 330 4955 358 5240 |
| 303 4665 331 4965 359 5250 |
| 304 4676 332 4975 360 5260 |
| 305 4686 333 4985 361 5268 |
| 306 4695 334 4995 362 5276 |
| 307 4704 335 5005 363 5285 |
| 308 4714 336 5015 364 5294 |
| 309 4725 337 5025 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
Administration.
Regulation 29 Correction to the Freeboard for Ships under 100metres in length
The tabular freeboard for a Type `B' ship of between 24 metres and 100
metres 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.
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
|-----|
| C + 0.68 |
| b |
by the factor | ---- |
| 1.36 |
|-----|
Regulation 31 Correction for Depth
L L
(1) Where D exceeds -- the freeboard shall be increased by (D - --)*
15 15
R millimetres,
L
where R is --- at lengths less than 120 metres and 250 at 120 metres
0.48
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 0.6L 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: Standard Height (in metres)
|-------------------
| 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 |
|-------------------
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; 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: 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 | 75.3 | 87.7 | 100 |
| types of | | | | | |
| superstructures | | | | | |
|------------------------
Percentages at intermediate lengths of superstructures and trunks
shall be obtained by linear interpolation. 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 | | | | | | |
| and | I | 0 | 5 | 10 | 15 | 23.5 | 32 | 46 | 63 | 75.3 | 87.7 | 100 |
| without | | | | | | |
| detached | | | | | | |
| bridge | | | | | | |
|-----|--|---|---|---|---|---|---|---|---|---|---|---|
| Ships | | | | | | |
| with | | | | | | |
| forecastle | | | | | | |
| and | II | 0 | 6.3 | 12.7 | 19 | 27.5 | 36 | 46 | 63 | 75.3 | 87.7 | 100 |
| detached | | | | | | |
| bridge | | | | | | |
|--------------------------
Percentages at intermediate lengths of superstructures and trunks
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 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 1/6L and 1/3L 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: Standard Sheer Profile (Where L is in metres)
|-------------------------
| | Ordinate |
| Station | Factor |
| | (in millimetres) |
|-----|---------|---------|----|
| After Perpendicular | L |
| | 25 (-- + 10) | 1 |
| 1 | 3 |
| After half | --L from A. P. | L |
| 6 | 11.1 (-- + 10) | 3 |
| 1 | 3 |
| --L from A. P. | L |
| 3 | 2.8 (-- + 10) | 3 |
| | 3 |
| Amidships | 0 | 1 |
|-----|---------|---------|----|
| Amidships | 0 | 1 |
| 1 | L |
| Forward half | --L from F.P. | 5.6 (-- + 10) | 3 |
| 3 | 3 |
| 1 | L |
| --L from F.P. | 22.2 (-- + 10) | 3 |
| 6 | 3 |
| | L |
| Forward Perpendicular | 50 (-- + 10) | 1 |
| | 3 |
|-------------------------
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 after or forward perpendicular,
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 form 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.
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.
(2) Where the bow height required in paragraph (3) 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 in length it shall be enclosed as
defined in Regulation 3 (10), and
(b) for ships over 100 metres in length it need not comply with
Regulation 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 (3) of this Regulation, but without the correction for deck
line, as provided by Regulation 32, shall not be less than 50
millimetres. 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.
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. 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.
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 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. 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
40T
where ¡÷ = displacement in salt water in tons at the summer load
waterline,
T = tons per centimetre immersion in salt water at the summer
load waterline.
(8) Where the displacement at the summer load waterline 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 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.
| 1 | 2 |
|