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INTERNATIONAL CONVENTION FOR THE SAFETY OF LIFE AT SEA, 1974
INTERNATIONAL CONVENTION FOR THE SAFETY OF LIFE AT SEA, 1974
Whole document
TABLE OF CONTENTS
ARTICLES OF THE INTERNATIONAL CONVENTION FOR THE SAFETY OF LIFE AT SEA,
1974
ANNEX
CHAPTER I GENERAL PROVISIONS
PART A APPLICATION, DEFINITIONS, ETC.
1 Application
2 Definitions
3 Exceptions
4 Exemptions
5 Equivalents
PART B SURVEYS AND CERTIFICATES
6 Inspection and Survey
7 Surveys of Passenger Ships
8 Surveys of Life-saving Appliances and other Equipment of cargo ships
9 Surveys of Radio and Radar Installations of Cargo Ships
10 Surveys of Hull, Machinery and Equipment of Cargo Ships
11 Maintenance of Conditions after Survey
12 Issue of Certificates
13 Issue of Certificates by another Government
14 Duration of Certificates
15 Form of Certificates
16 Posting up of Certificates
17 Acceptance of Certificates
18 Qualification of Certificates
19 Control
20 Privileges
PART C CASUALTIES
21 Casualties
CHAPTER II-1 CONSTRUCTION-SUBDIVISION AND STABILITY, MACHINERY AND
ELECTRICAL INSTALLATIONS
PART A GENERAL
1 Application
2 Definitions
PART B SUBDIVISION AND STABILITY
3 Floodable Length
4 Permeability
5 Permissible Length of Compartments
6 Special Rules concerning Subdivision
7 Stability of Ships in Damaged Condition
8 Ballasting
9 Peak and Machinery Space Bulkheads, Shaft Tunnels, etc.
10 Double Bottoms
11 Assigning, Marking and Recording of Subdivision Loadlines
12 Construction and Initial Testing of Watertight Bulkheads etc.
13 Openings in watertight Bulkheads
14 Openings in the Shell Plating below the Margin Line
15 Construction and Initial Tests of Watertight Doors, Sidescuttles,
etc.
16 Construction and Initial Tests of Watertight Deck, Trunks, etc.
17 Watertight Integrity above the Margin Line
18 Bilge Pumping Arrangements in Passenger Ships
19 Stability Information for Passenger Ships and Cargo Ships
20 Damage Control Plans
21 Marking, Periodical Operation and Inspection of Watertight Doors,
etc.
22 Entries in Log
PART C MACHINERY AND ELECTRICAL INSTALLATIONS
23 General
24 Main Source of Electrical Power in Passenger Ships
25 Emergency Source of Electrical Power in Passenger Ships
26 Emergency Source of Electrical Power in Cargo ships
27 Precautions against Shock, Fire and other Hazards of Electrical
Origin
28 Means of Going Astern
29 Steering Gear
30 Electric and Electrohydraulic Steering Gear
31 Location of Emergency Installations in Passenger Ships
32 Communication between Bridge and Engine Room
CHAPTER II-2 CONSTRUCTION-FIRE PROTECTION, FIRE DETECTION AND FIRE
EXTINCTION
PART A GENERAL
1 Application
2 Basic Principles
3 Definitions
4 Fire Control Plans
5 Fire Pumps, Fire Mains, Hydrants and Hoses
6 Miscellaneous Items
7 Fire Extinguishers
8 Fixed Gas Fire-Extinguishing Systems
9 Fixed Froth Fire-Extinguishing Systems in Machinery Spaces
10 Fixed High Expansion Froth Fire-Extinguishing Systems in Machinery
Spaces
11 Fixed Pressure Water-spraying Fire-Extinguishing Systems in
Machinery Spaces
12 Automatic Sprinkler and Fire Alarm and Fire Detection Systems
13 Automatic Fire Alarm and fire Detection Systems
14 Fireman's Outfit
15 Ready Availability of Fire-Extinguishing Appliances
16 Acceptance of Substitutes
PART B FIRE SAFETY MEASURES FOR PASSENGER SHIPS CARRYING MORE THAN 36
PASSENGERS
17 Structure
18 Main Vertical Zones and Horizontal Zones
19 Bulkheads within a Main Vertical Zone
20 Fire Integrity of Bulkheads and Decks
21 Means of Escape
22 Protection of Stairways and Lifts in Accommodation and Service
Spaces
23 Openings in "A" Class Divisions
24 Openings in "B" Class Divisions
25 Ventilation Systems
26 Windows and Sidescuttles
27 Restriction of Combustible Materials
28 Miscellaneous Items
29 Automatic Sprinkler and Fire Alarm and Fire Detection Systems or
Automatic Fire Alarm and Fire Detection Systems
30 Protection of Special Category Spaces
31 Protection of Cargo Spaces other than Special Category Spaces
intended for the Carriage of Motor Vehicles with Fuel in their Tanks for
their own Propulsion
32 Maintenance of Fire Patrols, etc., and Provision for
Fire-Extinguishing Equipment
33 Arrangements for Oil Fuel Lubricating Oil and other Inflammable
oils
34 Special Arrangements in Machinery Spaces
PART C FIRE SAFETY MEASURES FOR PASSENGER SHIPS CARRYING NOT MORE THAN
36 PASSENGERS
35 Structure
36 Main Vertical Zones
37 Openings in "A" Class Divisions
38 Fire Integrity of "A" Class Divisions
39 Separation of Accommodation Spaces from Machinery, Cargo and
Service Spaces
40 Protection of Accommodation and Service Spaces
41 Deck Coverings
42 Protection of Stairways and Lifts in Accommodation and Service
Spaces
43 Protection of Control Stations and Store-rooms
44 Windows and Sidescuttles
45 Ventilation systems
46 Details of Construction
47 Fire Detection Systems and Fire-Extinguishing Equipment
48 Means of Escape
49 Oil Fuel used for Internal Combustion Engines
50 Special Arrangements in Machinery Spaces
PART D FIRE SAFETY MEASURES FOR CARGO SHIPS
51 General Requirements for Cargo Ships of 4000 tons Gross Tonnage and
Upwards other than Tankers Covered by Part E of this Chapter
52 Fire-Extinguishing Systems and Equipment
53 Means of Escape
54 Special Arrangements in Machinery Spaces
PART E FIRE SAFETY MEASURES FOR TANKERS
55 Application
56 Location and Separation of Spaces
57 Construction
58 Ventilation
59 Means of Escape
60 Cargo Tank Protection
61 Fixed Deck Froth System
62 Inert Gas System
63 Cargo Pump Room
64 Hose Nozzles
PART F SPECIAL FIRE SAFETY MEASURES FOR EXISTING PASSENGER SHIPS
65 Application
66 Structure
67 Main Vertical Zones
68 Openings in Main Vertical Zone Bulkheads
69 Separation of Accommodation Spaces from Machinery, Cargo and
Service Spaces
70 Application relative to Method I, II, and III
71 Protection of Vertical Stairways
72 Protection of Lifts (Passenger and Service), Vertical Trunks for
Light and Air, etc.
73 Protection of Control Stations
74 Protection of Store-rooms, etc.
75 Windows and Sidescuttles
76 Ventilation Systems
77 Miscellaneous Items
78 Cinematograph Film
79 Plans
80 Pumps, Fire Main Systems, Hydrants and Hoses
81 Fire Detection and Extinction Requirements
82 Ready Availability of Fire-Fighting Appliances
83 Means of Escape
84 Emergency Source of Electrical Power
85 Practice Musters and Drills
CHAPTER III LIFE-SAVING APPLIANCE, ETC.
1 Application
PART A GENERAL
2 Definitions
3 exemptions
4 Ready Availability of Lifeboats, Liferafts and Buoyant Apparatus
5 Construction of Lifeboats
6 Cubic Capacity of Lifeboats
7 Carrying Capacity of Lifeboats
8 Number of Motor Lifeboats to be Carried
9 Specification of Motor Lifeboats
10 Specification of Mechanically Propelled Lifeboats other than Motor
Lifeboats
11 Equipment of Lifeboats
12 Security of Lifeboat Equipment
13 Portable Radio Apparatus for Survival Craft
14 Radio Apparatus and Searchlights in Motor Lifeboats
15 Requirements for Inflatable Liferafts
16 Requirements for Rigid Liferafts
17 Equipment of Inflatable and Rigid Liferafts
18 Training in the Use of Liferafts
19 Embarkation into Lifeboats and Liferafts
20 Marking of Lifeboats, Liferafts and Buoyant Apparatus
21 Specification of a Lifebuoy
22 Life-jackets
23 Line-throwing Appliances
24 Ships' Distress Signals
25 Muster List and Emergency Procedure
26 Practice Musters and Drills
PART B PASSENGER SHIPS ONLY
27 Lifeboats, Liferafts and Buoyant Apparatus
28 Table relating to Davits and Lifeboat Capacity for Ships on Short
International Voyages
29 Stowage and Handling of Lifeboats, Liferafts and Buoyant Apparatus
30 Lighting for Decks, Lifeboats, Liferafts, etc.
31 Manning of Lifeboats and Liferafts
32 Certificated Lifeboatman
33 Buoyant Apparatus
34 Number of Lifebuoys to be Provided
PART C CARGO SHIPS ONLY
35 Number and Capacity of Lifeboats and Liferafts
36 Davits and Launching Arrangements
37 Number of Lifebuoys to be Provided
38 Emergency Lighting
CHAPTER IV RADIOTELEGRAPHY AND RADIOTELEPHONY
PART A APPLICATION AND DEFINITION
1 Application
2 Terms and Definitions
3 Radiotelegraph Station
4 Radiotelephone Station
5 Exemptions form Regulations 3 and 4
PART B WATCHES
6 Watches-Radiotelegraph
7 Watches-Radiotelephone
8 Watches-VHF Radiotelephone
PART C TECHNICAL REQUIREMENTS
9 Radiotelegraph Stations
10 Radiotelegraph Installations
11 Radiotelegraph Auto Alarms
12 Direction-Finders
13 Radiotelegraph Installation for Fitting in Motor Lifeboats
14 Portable Radio Apparatus for Survival Craft
15 Radiotelephone Stations
16 Radiotelephone Installations
17 VHF Radiotelephone Stations
18 Radiotelephone Auto alarms
PART D RADIO LOGS
19 Radio Logs
CHAPTER V SAFETY OF NAVIGATION
1 Application
2 Danger Massages
3 Information required in Danger Messages
4 Meteorological Services
5 Ice Patrol Service
6 Ice Patrol Management and Cost
7 Speed Near Ice
8 Routing
9 Misuse of Distress Signals
10 Distress Messages-Obligations and Procedures
11 Signalling Lamps
12 Shipborne Navigational Equipment
13 Manning
14 Aids to Navigation
15 Search and Rescue
16 Life-Saving signals
17 Pilot Ladders and Mechanical Pilot Hoists
18 VHF Radiotelephone Stations
19 Use of the Automatic Pilot
20 Nautical Publications
21 International Code of Signals
CHAPTER VI CARRIAGE OF GRAIN
PART A GENERAL PROVISIONS
1 application
2 Definitions
3 Trimming of Grain
4 Intact Stability Requirements
5 Longitudinal Divisions and Saucers
6 Securing
7 Feeders and Trunks
8 Combination Arrangements
9 Application of Parts B and C
10 Authorization
11 Grain Loading Information
12 Equivalents
13 Exemptions for Certain Voyages
PART B CALCULATION OF ASSUMED HEELING MOMENTS
SECTION I-DESCRIPTION OF THE ASSUMED VOIDS AND METHOD
OF CALCULATING INTACT STABILITY
SECTION II-ASSUMED VOLUMETRIC HEELING MOMENT OF
A FILLED COMPARTMENT
SECTION III-ASSUMED VOLUMETRIC HEELING MOMENT OF
FEEDERS AND TRUNKS
SECTION IV-ASSUMED VOLUMETRIC HEELING MOMENT OF
PARTLY FILLED COMPARTMENTS
SECTION V-ALTERNATIVE LOADING ARRANGEMENTS FOR
EXISTING SHIPS
PART C GRAIN FITTINGS AND SECURING
SECTION I-STRENGTH OF GRAIN FITTINGS
SECTION II-SECURING OF PARTLY FILLED COMPARTMENTS
CHAPTER VII CARRIAGE OF DANGEROUS GOODS
1 Application
2 Classification
3 Packing
4 Marking and Labelling
5 Documents
6 Stowage Requirements
7 Explosives in Passenger Ships
CHAPTER VIII NUCLEAR SHIPS
1 Application
2 Application of other Chapters
3 Exemptions
4 Approval of Reactor Installation
5 Suitability of Reactor Installation for Service on Board Ship
6 Radiation Safety
7 Safety Assessment
8 Operating Manual
9 Surveys
10 Certificates
11 Special control
12 Casualties
APPENDIX FORMS OF CERTIFICATES
INTERNATIONAL CONVENTION FOR THE SAFETY OF LIFE AT SEA, 1974
The Contracting Governments,
Being desirous of promoting safety of life at sea by establishing in
common agreement uniform principles and rules directed thereto,
Considering that this end may best be achieved by the conclusion of a
Convention to replace the International Convention for the Safety of Life
at Sea, 1960, taking account of developments since that Convention was
concluded,
Have agreed as follows:
Article I General Obligations under the Convention
(a) The Contracting Governments undertake to give effect to the
provisions of the present Convention and the Annex thereto, 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
Annex.
(b) The Contracting Governments undertake to promulgate all laws,
decrees, orders and regulations and to take all other steps which may be
necessary to give the present Convention full and complete effect, so as
to ensure that, from the point of view of safety of life, a ship is fit
for the service for which it is intended.
Article II Application
The present Convention shall apply to ships entitled to fly the flag
of States the Governments of which are Contracting Governments.
Article III Laws, Regulations
The Contracting Governments undertake to communicate to and deposit
with the Secretary-General of the Inter-Governmental Maritime Consultative
Organization (hereinafter referred to as "the Organization"):
(a) a list of non-governmental agencies which are authorized to act in
their behalf in the administration of measures for safety of life at sea
for circulation to the Contracting Governments for the information of
their officers;
(b) the text of laws, decrees, orders and regulations which shall have
been promulgated on the various matters within the scope of the present
Convention;
(c) a sufficient number of specimens of their Certificates issued
under the provisions of the present Convention for circulation to the
Contracting Governments for the information of their officers.
Article IV Cases of Force Majeure
(a) 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 the provisions of the present Convention on account of any
deviation from its intended voyage due to stress of weather or any other
cause of force majeure.
(b) Persons who are on board a ship by reason of force majeure or in
consequence of the obligation laid upon the master to carry shipwrecked or
other persons shall not be taken into account for the purpose of
ascertaining the application to a ship of any provisions of the present
Convention.
Article V Carriage of Persons in Emergency
(a) For the purpose of evacuating persons in order to avoid a threat
to the security of their lives a Contracting Government may permit the
carriage of a larger number of persons in its ships than is otherwise
permissible under the present Convention.
(b) Such permission shall not deprive other contracting Governments of
any right of control under the present Convention over such ships which
come within their ports.
(c) Notice of any such permission, together with a statement of the
circumstances, shall be sent to the Secretary-General of the Organization
by the Contracting Government granting such permission.
Article VI Prior Treaties and Conventions
(a) As between the Contracting Governments, the present Convention
replaces and abrogates the International Convention for the Safety of Life
at Sea which was signed in London on 17 June 1960.
(b) All other treaties, conventions and arrangements relating to
safety of life at sea, or matters appertaining thereto, 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:
(i) ships to which the present Convention does not apply;
(ii) ships to which the present Convention applies, in respect of
matters for which it has not expressly provided.
(c) 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.
(d) All matters which are not expressly provided for in the present
Convention remain subject to the legislation of the Contracting
Governments.
Article VII Special Rules drawn up by Agreement
When in accordance with the present Convention special rules are drawn
up by agreement between all or some of the Contracting Governments, such
rules shall be communicated to the Secretary-General of the Organization
for circulation to all Contracting Governments.
Article VIII Amendments
(a) The present Convention may be amended by either of the procedures
specified in the following paragraphs.
(b) Amendments after consideration within the Organization:
(i) Any amendment proposed by a Contracting Government 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 at least six months prior to its consideration.
(ii) Any amendment proposed and circulated as above shall be
referred to the Maritime Safety Committee of the Organization for
consideration.
(iii) Contracting Governments of States, 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.
(iv) Amendments shall be adopted by a two-thirds majority of the
Contracting Governments present and voting in the Maritime Safety
Committee expanded as provided for in sub-paragraph (iii) of this
paragraph (hereinafter referred to as "the expanded Maritime Safety
Committee") on condition that at least one-third of the Contracting
Governments shall be present at the time of voting.
(v) Amendments adopted in accordance with sub-paragraph (iv) of
this paragraph shall be communicated by the Secretary-General of the
Organization to all Contracting Governments for acceptance.
(vi) (1) An amendment to an Article of the Convention or to
Chapter I of the Annex shall be deemed to have been accepted on the date
on which it is accepted by two-thirds of the Contracting Governments.
(2) An amendment to the Annex other than Chapter I shall be
deemed to have been accepted:
(aa) at the end of two years from the date on which it is
communicated to Contracting Governments 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 Contracting Governments present and voting in
the expanded Maritime Safety Committee.
However, if within the specified period either more than
one-third of Contracting Governments, or Contracting Governments the
combined merchant fleets of which constitute not less than 50 per cent, of
the gross tonnage of the world's merchant fleet, notify the
Secretary-General of the Organization that they object to the amendment,
it shall be deemed not to have been accepted.
(vii) (1) An amendment to an Article of the Convention or to
Chapter I of the Annex shall enter into force with respect to those
Contracting Governments which have accepted it, six months after the date
on which it is deemed to have been accepted, and with respect to each
Contracting Government which accepts it after that date, six months after
the date of that Contracting Government's acceptance.
(2) An amendment to the Annex other than Chapter I shall enter
into force with respect to all Contracting Governments, except those which
have objected to the amendment under sub-paragraph (vi) (2) of this
paragraph 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 Contracting Government 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 Contracting Governments present
and voting in the expanded Maritime Safety Committee at the time of the
adoption of the amendment.
(c) Amendment by a Conference:
(i) Upon the request of a Contracting Government concurred in by
at least one-third of the Contracting Governments, the Organization shall
convene a Conference of Contracting Governments to consider amendments to
the present Convention.
(ii) Every amendment adopted by such a Conference by a two-thirds
majority of the Contracting Governments present and voting shall be
communicated by the Secretary-General of the Organization to all
Contracting Governments for acceptance.
(iii) 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 sub-paragraphs (b) (vi) and (b) (vii)
respectively of this Article, provided that references in these
paragraphs to the expanded Maritime Safety Committee shall be taken to
mean references to the Conference.
(d) (i) A Contracting Government which has accepted an amendment to
the Annex which has entered into force shall not be obliged to extend the
benefit of the present Convention in respect of the certificates issued to
a ship entitled to fly the flag of a State the Government of which,
pursuant to the provisions of subparagraph (b) (vi) (2) of this Article,
has objected to the amendment and has not withdrawn such an objection, but
only to the extent that such certificates relate to matters covered by the
amendment in question.
(ii) A Contracting Government which has accepted an amendment to
the Annex which has entered into force shall extend the benefit of the
present Convention in respect of the certificates issued to a ship
entitled to fly the flag of a State the Government of which, pursuant to
the provisions of sub-paragraph (b) (vii) (2) of this Article, has
notified the Secretary-General of the Organization that it exempts itself
from giving effect to the amendment.
(e) Unless expressly provided otherwise, any amendment to the present
Convention 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.
(f) Any declaration of acceptance of, or objection to, an amendment or
any notice given under sub-paragraph (b) (vii) (2) of this Article shall
be submitted in writing to the Secretary-General of the Organization, who
shall inform all Contracting Governments of any such submission and the
date of its receipt.
(g) The Secretary-General of the Organization shall inform all
Contracting Governments of any amendments which enter into force under
this Article, together with the date on which each such amendment enters
into force.
Article IX Signature, Ratification, Acceptance, Approval and Ac-cession
(a) The present Convention shall remain open for signature at the
Headquarters of the Organization from November 1, 1974 until July 1, 1975
and shall thereafter remain open for accession. States may become parties
to the present Convention by:
(i) signature without reservation as to ratification, acceptance
or approval: or
(ii) signature subject to ratification, acceptance or approval,
followed by rectification, acceptance or approval; or
(iii) accession.
(b) Ratification, acceptance, approval or accession shall be effected
by the deposit of an instrument to that effect with the Secretary-General
of the Organization.
(c) The Secretary-General of the Organization shall inform the
Governments of all States which have signed the present Convention or
acceded to it of any signature or of the deposit of any instrument of
ratification, acceptance, approval or accession and the date of its
deposit.
Article X Entry into Force
(a) The present Convention shall enter into force 12 months after the
date on which not less than 25 States, the combined merchant fleets of
which constitute not less than 50 per cent, of the gross tonnage of the
world's merchant shipping, have become parties to it in accordance with
Article IX.
(b) Any instrument of ratification, acceptance, approval or accession
deposited after the date on which the present Convention enters into force
shall take effect three months after the date of deposit.
(c) After the date on which an amendment to the present Convention is
deemed to have been accepted under Article VIII, any instrument of
rectification, acceptance, approval or accession deposited shall apply to
the Convention as amended.
Article XI Denunciation
(a) 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 enters into force for that Government.
(b) Denunciation shall be effected by the deposit of an instrument of
denunciation with the Secretary-General of the Organization who shall
notify all the other Contracting Governments of any instrument of
denunciation received and of the date of its receipt as well as the date
on which such denunciation takes effect.
(c) 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.
Article XII Deposit and Registration
(a) The present Convention shall be deposited with the
Secretary-General of the Organization who shall transmit certified true
copies thereof to the Governments of all States which have signed the
present Convention or acceded to it.
(b) As soon as the present Convention enters into force, the text
shall be transmitted by the Secretary-General of the Organization to the
Secretary-General of the United Nations for registration and publication,
in accordance with Article 102 of the Charter of the United Nations.
Article XIII Languages
The present Convention is established in a single copy in the Chinese,
English, French, Russian and Spanish languages, each text being equally
authentic. Official translations in the Arabic, German and Italian
languages shall be prepared and deposited with the signed original.
IN WITNESS WHEREOF the undersigned¢Ù, being duly authorized by their
respective Governments for that purpose, have signed the present
Convention.
[ ¢Ù Signature omitted.]
DONE AT LONDON this first day of November one thousand nine hundred
and seventy-four.
ANNEX
CHAPTER I GENERAL PROVISIONS
PART A APPLICATION, DEFINITIONS, ETC.
Regulation 1: Application
(a) Unless expressly provided otherwise, the present Regulations apply
only to ships engaged on international voyages.
(b) The classes of ships to which each Chapter applies are more
precisely defined, and the extent of the application is shown, in each
Chapter.
Regulation 2: Definitions
For the purpose of the present Regulations, unless expressly provided
otherwise:
(a) "Regulations" means the Regulations contained in the Annex to the
present Convention.
(b) "Administration" means the Government of the State whose flag the
ship is entitled to fly.
(c) "Approved" means approved by the Administration.
(d) "International voyage" means a voyage from a country to which the
present Convention applies to a port outside such country, or conversely.
(e) A passenger is every person other than:
(i) the master and the members of the crew or other persons
employed or engaged in any capacity on board a ship on the business of
that ship; and
(ii) a child under one year of age.
(f) A passenger ship is a ship which carries more than 12 passengers.
(g) A cargo ship is any ship which is not a passenger ship.
(h) A tanker is a cargo ship constructed or adapted for the carriage
in bulk of liquid cargoes of an inflammable * nature.
[* "Inflammable" has the same meaning as "flammable".]
(i) A fishing vessel is a vessel used for catching fish, whales,
seals, walrus or other living resources of the sea.
(j) A nuclear ship is a ship provided with a nuclear power plant.
(k) "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.
(l) "Existing ship" means a ship which is not a new ship.
(m) A mile is 1,852 metres or 6,080 feet.
Regulation 3: Exceptions
(a) The present Regulations, unless expressly provided otherwise, do
not apply to:
(i) Ships of war and troopships.
(ii) Cargo ships of less than 500 tons gross tonnage.
(iii) Ships not propelled by mechanical means.
(iv) Wooden ships of primitive build.
(v) Pleasure yachts not engaged in trade.
(vi) Fishing vessels.
(b) Except as expressly provided in Chapter V, nothing herein shall
apply to ships solely navigating the Great Lakes of North America and The
River St. Lawrence as far east as a straight line drawn from Cap des
Rosiers to West Point, Anticosti Island and, on the north side of
Anticosti Island, the 63rd Meridian.
Regulation 4: Exemptions
(a) 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 Regulations provided that it complies with
safety requirements which are adequate in the opinion of the
Administration for the voyage which is to be undertaken by the ship.
(b) The Administration may exempt any ship which embodies features of
a novel kind from any of the provisions of Chapters II-1, II-2, III and IV
of these Regulation 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. The
Administration which allows any such exemption shall communicate to the
Organization particulars of same and the reasons therefor which the
Organization shall circulate to the Contracting Governments for their
information.
Regulation 5: Equivalents
(a) Where the present Regulations require that a particular fitting,
material, appliance or apparatus, or type thereof, shall be fitted or
carried in a ship, or that any particular provision shall be made, the
Administration may allow any other fitting, material, appliance or
apparatus, or type thereof, to be fitted or carried, or any other
provision to be made in that ship, if it is satisfied by trial thereof or
otherwise that such fitting, material, appliance or apparatus, or type
thereof, or provision, is at least as effective as that required by the
present Regulations.
(b) Any Administration which so allows, in substitution, a fitting,
material, appliance or apparatus, or type thereof, or provision, shall
communicate to the Organization particulars thereof together with a report
on any trials made and the Organization shall circulate such particulars
to other Contracting Governments for the information of their officers.
PART B SURVEYS AND CERTIFICATES
Regulation 6: Inspection and Survey
The inspection and survey of ships, so far as regards the enforcement
of the provisions of the present Regulations and the granting of
exemptions therefrom, shall be carried out by officers of the country in
which the ship is registered, provided that the Government of each country
may entrust the inspection and survey either to surveyors nominated for
the purpose or to organizations recognized by it. In every case the
Government concerned fully guarantees the completeness and efficiency of
the inspection and survey.
Regulation 7: Surveys of Passenger Ships
(a) A passenger ship shall be subjected to the surveys specified
below:
(i) A survey before the ship is put in service.
(ii) A periodical survey once every 12 months.
(iii) Additional surveys, as occasion arises.
(b) The surveys referred to above shall be carried out as follows:
(i) The survey before the ship is put in service shall include a
complete inspection of its structure, machinery and equipment, including
the outside of the ship's bottom and the inside and outside of the
boilers. This survey shall be such as to ensure that the arrangements,
material, and scantlings of the structure, boilers and other pressure
vessels and their appurtenances, main and auxiliary machinery, electrical
installation, radio installation, radiotelegraph installations in motor
lifeboats, portable radio apparatus for survival craft, life-saving
appliances, fire protection, fire detecting and extinguishing appliances,
radar, echo-sounding device, gyro-compass, pilot ladders, mechanical pilot
hoists and other equipment, fully comply with the requirements of the
present Convention, and of the laws, decrees, orders and regulations
promulgated as a result thereof by the Administration for ships of the
service for which it is intended. The survey shall also be such as to
ensure that the workmanship of all parts of the ship and its equipment is
in all respects satisfactory, and that the ship is provided with the
lights, shapes, means of making sound signals and distress signals as
required by the provisions of the present Convention and the International
Regulations for Preventing Collisions at Sea in force.
(ii) The periodical survey shall include an inspection of the
structure, boilers and other pressure vessels, machinery and equipment,
including the outside of the ship's bottom. The survey shall be such as to
ensure that the ship, as regards the structure, boilers and other pressure
vessels and their appurtenances, main and auxiliary machinery, electrical
installation, radio installation, radiotelegraph installations in motor
lifeboats, portable radio apparatus for survival craft, life-saving
appliances, fire protection, fire detecting and extinguishing appliances,
radar, echo-sounding device, gyro-compass, pilot ladders, mechanical
pilot hoists and other equipment, is in satisfactory condition and fit for
the service for which it is intended, and that it complies with the
requirements of the present Convention, and of the laws, decrees, orders
and regulations promulgated as a result thereof by the Administration. The
lights, shapes and means of making sound signals and the distress signals
carried by the ship shall also be subject to the above-mentioned survey
for the purpose of ensuring that they comply with the requirements of the
present Convention and of the International Regulations for Preventing
Collisions at Sea in force.
(iii) A survey either general or partial, according to the
circumstances, shall be made every time an accident occurs or a defect is
discovered which affects the safety of the ship or the efficiency or
completeness of its life-saving appliances or other equipment, or
whenever any important repairs or renewals are made. The survey shall be
such as to ensure that the necessary repairs or renewals have been
effectively made, that the material and workmanship of such repairs are in
all respects satisfactory, and that the ship complies in all respects with
the provisions of the present Convention and of the International
Regulations for Preventing Collisions at Sea in force, and of the laws,
decrees, orders and regulations promulgated as a result thereof by the
Administration.
(c) (i) The laws, decrees, orders and regulations referred to in
paragraph (b) of this Regulation shall be in all respects such as to
ensure that, from the point of view of safety of life, the ship is fit for
the service for which it is intended.
(ii) They shall among other things prescribe the requirements to
be observed as to the initial and subsequent hydraulic or other acceptable
alternative tests to which the main and auxiliary boilers, connexions,
steam pipes, high pressure receivers, and fuel tanks for internal
combustion engines are to be submitted including the test procedures to be
followed and the intervals between two consecutive tests.
Regulation 8: Surveys of Life-Saving appliances and other Equip-ment
The life-saving appliances, except a radiotelegraph installation in a
motor lifeboat or a portable radio apparatus for survival craft, the
echo-sounding device, the gyro-compass, and the fire-extinguishing
appliances of cargo ships to which Chapters II-1, II-2, III and V apply
shall be subject to initial and subsequent surveys as provided for
passenger ships in Regulation 7 of this Chapter with the substitution of
24 months for 12 months in sub-paragraph (a) (ii) of that Regulation. The
fire control plans in new ships and the pilot ladders, mechanical pilot
hoists, lights, shapes and means of making sound signals carried by new
and existing ships shall be included in the surveys for the purpose of
ensuring that they comply fully with the requirements of the present
Convention and, where applicable, the International Regulations for
Preventing Collisions at Sea in force.
Regulation 9: Surveys of Radio and Radar Installations of CargoShips
The radio and radar installations of cargo ships to which Chapters IV
and V apply and any radiotelegraph installation in a motor lifeboat or
portable radio apparatus for survival craft which is carried in compliance
with the requirements of Chapter III shall be subject to initial and
subsequent surveys as provided for passenger ships in Regulation 7 of this
Chapter.
Regulation 10: Surveys of Hull, Machinery and Equipment of CargoShips
The hull, machinery and equipment (other than items in respect of
which Cargo Ship Safety Equipment Certificates, Cargo Ship Safety
Radiotelegraphy Certificates or Cargo Ship Safety Radiotelephony
Certificates are issued) of a cargo ship shall be surveyed on completion
and thereafter in such manner and at such intervals as the Administration
may consider necessary in order to ensure that their condition is in all
respects satisfactory. The survey shall be such as to ensure that the
arrangements, material, and scantlings of the structure, boilers and
other pressure vessels and their appurtenances, main and auxiliary
machinery, electrical installations and other equipment are in all
respects satisfactory for the service for which the ship is intended.
Regulation 11: Maintenance of Conditions after Survey
After any survey of the ship under Regulations 7, 8, 9 or 10 of this
Chapter has been completed, no change shall be made in the structural
arrangements, machinery, equipment, etc., covered by the survey, without
the sanction of the Administration.
Regulation 12: Issue of Certificates
(a) (i) A certificate called a Passenger Ship Safety Certificate shall
be issued after inspection and survey to a passenger ship which complies
with the requirements of Chapters II-1, II-2, III and IV and any other
relevant requirements of the present Regulations.
(ii) A certificate called a Cargo Ship Safety Construction
Certificate shall be issued after survey to a cargo ship which satisfies
the requirements for cargo ships on survey set out in Regulation 10 of
this Chapter and complies with the applicable requirements of Chapters
II-1 and II-2 other than those relating to fire-extinguishing appliances
and fire control plans.
(iii) A certificate called a Cargo Ship Safety Equipment
Certificate shall be issued after inspection to a cargo ship which
complies which the relevant requirements of Chapters II-1, II-2 and III
and any other relevant requirements of the present Regulations.
(iv) A certificate called a Cargo Ship Safety Radiotelegraphy
Certificate shall be issued after inspection to a cargo ship, fitted with
a radiotelegraph installation, which complies with the requirements of
Chapter IV and any other relevant requirements of the present Regulations.
(v) A certificate called a Cargo Ship Safety Radiotelephony
Certificate shall be issued after inspection to a cargo ship, fitted with
a radiotelephone installation, which complies which the requirements of
Chapter IV and any other relevant requirements of the present Regulations.
(vi) When an exemption is granted to a ship under and in
accordance with the provisions of the present Regulations, a certificate
called an Exemption Certificate shall be issued in addition to the
certificates prescribed in this paragraph.
(vii) Passenger Ship Safety Certificates, Cargo Ship Safety
Construction Certificates, Cargo Ship Safety Equipment Certificates,
Cargo Ship Safety Radiotelegraphy Certificates, Cargo Ship Safety
Radiotelephony Certificates and Exemption Certificates shall be issued
either by the Administration or by any person or organization duly
authorized by it. In every case, that Administration assumes full
responsibility for the Certificate.
(b) Notwithstanding any other provision of the present Convention any
certificate issued under, and in accordance with, the provisions of the
International Convention for the Safety of Life at Sea, 1960, which is
current when the present Convention comes into force in respect of the
Administration by which the certificate is issued, shall remain valid
until it expires under the terms of Regulation 14 of Chapter I of that
Convention.
(c) A Contracting Government shall not issue certificates under, and
in accordance with, the provisions of the International Convention for the
Safety of Life at Sea, 1960, 1948 or 1929, after the date on which
acceptance of the present Convention by the Government takes effect.
Regulation 13: Issue of Certificate by another Government
A Contracting Government may, at the request of the Administration,
cause a ship to be surveyed and, if satisfied that the requirements of the
present Regulations are complied with, shall issue certificates to the
ship in accordance with the present Regulations. Any certificate so issued
must contain a statement to the effect that it has been issued at the
request of the Government of the country in which the ship is or will be
registered, and it shall have the same force and receive the same
recognition as a certificate issued under Regulation 12 of this Chapter.
Regulation 14: Duration of Certificates
(a) Certificates other than Cargo ship Safety Construction
Certificates, Cargo Ship Safety Equipment Certificates and Exemption
Certificates shall be issued for a period of not more than 12 months.
Cargo Ship Safety Equipment Certificates shall be issued for a period of
not more than 24 months. Exemption Certificates shall not be valid for
longer than the period of the certificates to which they refer.
(b) If a survey takes place within two months before the end of the
period for which a Cargo Ship Safety Radiotelegraphy Certificate or a
Cargo Ship Safety Radiotelephony Certificate issued in respect of cargo
ships of 300 tons gross tonnage and upwards, but less than 500 tons gross
tonnage, was originally issued, that certificate may be withdrawn, and a
new certificate may be issued which shall expire 12 months after the end
of the said period.
(c) If a ship at the time when its certificate expires is not in a
port of the country in which it is registered, the certificate may be
extended by the Administration, but such extension shall be granted only
for the purpose of allowing the ship to complete its voyage to the country
in which it is registered or is to be surveyed, and then only in cases
where it appears proper and reasonable to do so.
(d) No certificate shall be thus extended for a longer period than
five months, and a ship to which such extension is granted shall not, on
its arrival in the country in which it is registered or the port in which
it is to be surveyed, be entitled by virtue of such extension to leave
that port or country without having obtained a new certificate.
(e) A certificate which has not been extended under the foregoing
provisions of his Regulation may be extended by the Administration for a
period of grace of up to one month from the date of expiry stated on it.
Regulation 15: Form of Certificates
(a) All certificates shall be drawn up in the official language or
languages of the country by which they are issued.
(b) The form of the certificates shall be that of the models given in
the Appendix to the present Regulations. The arrangement of the printed
part of the model certificates shall be exactly reproduced in the
certificates issued, or in certified copies thereof, and the particulars
inserted in the certificates issued, or in certified copies thereof, shall
be in Roman characters and Arabic figures.
Regulation 16: Posting up of Certificates
All certificates or certified copies thereof issued under the present
Regulations shall be posted up in a prominent and accessible place in the
ship.
Regulation 17: Acceptance of Certificates
Certificates issued under the authority of a Contracting Government
shall be accepted by the other Contracting Governments for all purposes
covered by the present Convention. They shall be regarded by the other
Contracting Governments as having the same force as certificates issued by
them.
Regulation 18: Qualification of Certificates
(a) If in the course of a particular voyage a ship has on board a
number of persons less than the total number stated in the Passenger Ship
Safety Certificate and is in consequence, in accordance with the
provisions of the present Regulations, free to carry a smaller number of
lifeboats and other life-saving appliances than that stated in the
Certificate, an annex may be issued by the Government, person or
organization referred to in Regulation 12 or 13 of this Chapter.
(b) This annex shall state that in the circumstances there is no
infringement of the provisions of the present Regulations. It shall be
annexed to the Certificate and shall be substituted for it in so far as
the life-saving appliances are concerned. It shall be valid only for the
particular voyage for which it is issued.
Regulation 19: Control
Every ship holding a certificate issued under Regulation 12 or
Regulation 13 of this Chapter is subject in the ports of the other
Contracting Governments to control by officers duly authorized by such
Governments in so far as this control is directed towards verifying that
there is on board a valid certificate. Such certificate shall be accepted
unless there are clear grounds for believing that the condition of the
ship or of its equipment does not correspond substantially with the
particulars of that certificate. In that case, the officer carrying out
the control shall take such steps as will ensure that the ship shall not
sail until it can proceed to sea without danger to the passengers or the
crew. In the event of this control giving rise to intervention of any
kind, the officer carrying out the control shall inform the Consul of the
country in which the ship is registered in writing forth with of all the
circumstances in which intervention was deemed to be necessary, and the
facts shall be reported to the Organization.
Regulation 20: Privileges
The Privileges of the present Convention may not be claimed in favour
of any ship unless it holds appropriate valid certificates.
PART C CASUALTIES
Regulation 21: Casualties
(a) Each Administration undertakes to conduct an investigation of any
casualty occurring to any of its ships subject to the provisions of the
present Convention when it judges that such an investigation may assist in
determining what changes in the present Regulations might be desirable.
(b) Each Contracting Government undertakes to supply the Organization
with 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.
CHAPTER II-1 CONSTRUCTION-SUBDIVISION AND STABILITY, MACHINERY ANDELECTRICAL INSTALLATIONS
PART A GENERAL
Regulation 1: Application
(a) (i) Unless expressly provided otherwise, this Chapter applies to
new ships.
(ii) Existing passenger ships and cargo ships shall comply with
the following:
(1) for ships the keels of which were laid or which were at a
similar stage of construction on or after the date of coming into force of
the International Convention for the Safety of Life at Sea, 1960, the
Administration shall ensure that the requirements which were applied under
Chapter II of that Convention to new ships as defined in that Chapter are
complied with;
(2) for ships the keels of which were laid or which were at a
similar stage of construction on or after date of coming into force of the
International Convention for the Safety of Life at Sea, 1948, but before
the date of coming into force of the International Convention for the
Safety of Life at Sea, 1960, the Administration shall ensure that the
requirements which were applied under Chapter II of the 1948 Convention to
new ships as defined in that Chapter are complied with;
(3) for ships the keels of which were laid or which were at a
similar stage of construction before the date of coming into force of the
International Convention for the Safety of Life at Sea, 1948, the
Administration shall ensure that the requirements which were applied under
Chapter II of that Convention to existing ships as defined in that Chapter
are complied with;
(4) as regards the requirements of Chapter II-1 of the present
Convention which are not contained in Chapter II of the 1960 and 1948
Conventions, the Administration shall decide which of these requirements
shall be applied to existing ships as defined in the present Convention.
(iii) 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. 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.
(b) For the purpose of this Chapter:
(i) A new passenger ship is a passenger 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, or a cargo ship which is
converted to a passenger ship on or after that date, all other passenger
ships being described as existing passenger ships.
(ii) A new cargo ship is a cargo ship the keel of which is laid or
which is at a similar stage of construction after the date of coming into
force of the present Convention.
(c) The Administration may, if it considers that the sheltered nature
and conditions of the voyage are such as to render the application of any
specific requirements of this Chapter unreasonable or unnecessary, exempt
from those requirements individual ships or classes of ships belonging to
its country which in the course of their voyage, do not proceed more than
20 miles from the nearest land.
(d) In the case of a passenger ship which is permitted under paragraph
(c) of Regulation 27 of Chapter III to carry a number of persons on board
in excess of the lifeboat capacity provided, it shall comply with the
special standards of subdivision set out in paragraph (e) of Regulation 5
of this Chapter, and the associated special provisions regarding
permeability in paragraph (d) of Regulation 4 of this Chapter, unless the
Administration is satisfied that, having regard to the nature and
conditions of the voyage, compliance with the other provisions of the
Regulations of this Chapter and Chapter II-2 of the present Convention is
sufficient.
(e) In the case of passenger ships which are employed in special
trades for the carriage of large numbers of special trade passengers, such
as the pilgrim trade, the Administration, if satisfied that it is
impracticable to enforce compliance with the requirements of this Chapter,
may exempt such ships, when they belong to its country, from those
requirements, provided that they comply fully with the provisions of:
(i) the Rules annexed to the Special Trade Passenger Ships
Agreement, 1971, and
(ii) the Rules annexed to the Protocol on Space Requirements for
Special Trade Passenger ships, 1973, when it enters into force.
Regulation 2: Definitions
For the purpose of this Chapter, unless expressly provided otherwise:
(a) (i) A subdivision load-line is a water-line used in determining
the subdivision of the ship.
(ii) The deepest subdivision load-line is the water-line which
corresponds to the greatest draught permitted by the subdivision
requirements which are applicable.
(b) The length of the ship is the length measured between
perpendiculars taken at the extremities of the deepest subdivision
load-line.
(c) The breadth of the ship is the extreme width from outside of frame
to outside of frame at or below the deepest subdivision load-line.
(d) The draught is the vertical distance from the moulded base line
amidships to the subdivision load-line in question.
(e) The bulkhead deck is the uppermost deck up to which the transverse
watertight bulkheads are carried.
(f) The margin line is a line drawn at least 76 millimetres (3 inches)
below the upper surface of the bulkhead deck at side.
(g) The permeability of a space is the percentage of that space which
can be occupied by water.
The volume of a space which extends above the margin line shall be
measured only to the height of that line.
(h) The machinery space is to be taken as extending from the moulded
base line to the margin line and between the extreme main transverse
watertight bulkheads bounding the spaces containing the main and auxiliary
propelling machinery, boilers serving the needs of propulsion, and all
permanent coal bunkers.
In the case of unusual arrangements, the Administration may define the
limits of the machinery spaces.
(i) Passenger spaces are those which are provided for the
accommodation and use of passengers, excluding baggage, store, provision
and mail rooms.
For the purposes of Regulations 4 and 5 of this Chapter, spaces
provided below the margin line for the accommodation and use of the crew
shall be regarded as passenger spaces.
(j) In all cases volumes and areas shall be calculated to moulded
lines.
PART B SUBDIVISION AND STABILITY*
[* Instead of the requirements in this Part, the Regulations on
Subdivision and Stability of Passenger Ships as an Equivalent to Part B of
Chapter II of the International Convention for the Safety of Life at Sea,
1960, adopted by the Organization by Resolution A. 265 (VIII), may be
used, if applied, in their entirety.]
(Part B applies to passenger ship only, except that Regulation 19 also
applies to cargo ships.)
Regulation 3: Floodable Length
(a) The floodable length at any point of the length of a ship shall be
determined by a method of calculation which takes into consideration the
form, draught and other characteristics of the ship in question.
(b) In a ship with a continuous bulkhead deck, the floodable length at
a given point is the maximum portion of the length of the ship, having its
centre at the point in question, which can be flooded under the definite
assumptions set froth in Regulation 4 of this Chapter without the ship
being submerged beyond the margin line.
(c) (i) In the case of a ship not having a continuous bulkhead deck,
the floodable length at any point may be determined to an assumed
continuous margin line which at no point is less than 76 millimetres (3
inches) below the top of the deck (at side) to which the bulkheads
concerned and the shell are carried watertight.
(ii) Where a portion of an assumed margin line is appreciably
below the deck to which bulkheads are carried, the Administration may
permit a limited relaxation in the watertightness of those portions of the
bulkheads which are above the margin line and immediately under the higher
deck.
Regulation 4: Permeability
(a) The definite assumptions referred to in Regulation 3 of this
Chapter related to the permeabilities of the spaces below the margin line.
In determining the floodable length, a uniform average permeability
shall be used throughout the whole length of each of the following
portions of the ship below the margin line:
(i) the machinery space as defined in Regulation 2 of this
Chapter;
(ii) the portion forward of the machinery space; and
(iii) the portion abaft the machinery space.
(b) (i) The uniform average permeability throughout the machinery
space shall be determined from the formula
a-c
85 + 10 (---)
v
where:
a = volume of the passenger spaces, as defined in Regulation 2 of this
Chapter, which are situated below the margin line within the limits of the
machinery space;
c = volume of between deck spaces below the margin line within the
limits of the machinery space which are appropriated to cargo, coal or
stores;
v = whole volume of the machinery space below the margin line.
(ii) Where it is shown to the satisfaction of the Administration
that the average permeability as determined by detailed calculation is
less than that given by the formula, the detailed calculated value may be
used. For the purpose of such calculation, the permeabilities of
passenger spaces, as defined in Regulation 2 of this Chapter, shall be
taken as 95, that of all cargo, coal and store spaces as 60, and that of
double bottom, oil fuel and other tanks at such values as may be approved
in each case.
(c) Except as provided in paragraph (d) of this Regulation, the
uniform average permeability throughout the portion of the ship before (or
abaft) the machinery space shall be determined from the formula
a
65 + 35--
v
where:
a = volume of the passenger spaces, as defined in Regulation 2 of this
Chapter, which are situated below the margin line, before (or abaft) the
machinery space, and
v = Whole volume of the portion of the ship below the margin line
before (or abaft) he machinery space.
(d) In the case of a ship which is permitted under paragraph (c) of
Regulation 27 of Chapter III to carry a number of persons on board in
excess of the lifeboat capacity provided, and is required under paragraph
(d) of Regulation 1 of this Chapter to comply with special provisions, the
uniform average permeability throughout the portion of the ship before (or
abaft) the machinery space shall be determined from the formula
b
95 - 35--
v
where: b = the volume of the spaces below the margin line and above
the tops of floors, inner tottom, or peak tanks, as the case may be, which
are appropriated to and used as cargo spaces, coal or oil fuel bunkers,
store-rooms, baggage and mail rooms, chain lockers and fresh water tanks,
before (or abaft) the machinery space; and
v = whole volume of the portion of the ship below the margin line
before (or abaft) the machinery space.
In the case of ship engaged on services where the cargo holds are not
generally occupied by any substantial quantities of cargo, no part of the
cargo spaces is to be included in calculating "b".
(e) In the case of unusual arrangements the Administration may allow,
or require, a detailed calculation of average permeability for the
portions before or abaft the machinery space. For the purpose of such
calculation, the permeability of passenger spaces as defined in Regulation
2 of this Chapter shall be taken as 95, that of spaces containing
machinery as 85, that of all cargo, coal and store spaces as 60, and that
of double bottom, oil fuel and other tanks at such value as may be
approved in each case.
(f) Where a between deck compartment between two watertight transverse
bulkheads contains any passenger or crew space, the whole of that
compartment, less any space completely enclosed within permanent steel
bulkheads and appropriated to other purposes, shall be regarded as
passenger space. Where, however, the passenger or crew space in question
is completely enclosed within permanent steel bulkheads, only the space so
enclosed need be considered as passenger space.
Regulation 5: Permissible Length of Compartments
(a) Ship shall be as efficiently subdivided as is possible having
regard to the nature of the service for which they are intended. The
degree of subdivision shall vary with the length of the ship and with the
service, in such manner that the highest degree of subdivision corresponds
with the ships of greatest length, primarily engaged in the carriage of
passengers.
(b) Factor of Subdivision. The maximum permissible length of a
compartment having its centre at any point in the ship's length is
obtained from the floodable length by multiplying the latter by an
appropriate factor called the factor of subdivision.
The factor of subdivision shall depend on the length of the ship, and
for a given length shall vary according to the nature of the service for
which the ship is intended. It shall decrease in a regular and continuous
manner:
(i) as the length of the ship increases, and
(ii) from a factor A, applicable to ships primarily engaged in the
carriage of cargo, to a factor B, applicable to ships primarily engaged in
the carriage of passengers.
The variations of the factors A and B shall be expressed by the
following formulae (I) and (II) where L is the length of the ship as
defined in Regulation 2 of this Chapter:
L in metres
58.2
A = --- +.18 (L = 131 and upwards) .............(I)
L - 60
L in feet
190
A = --- +.18 (L = 430 and upwards)
L - 198
L in metres
30.4
B = --- +.18 (L = 79 and upwards) .............(II)
L - 42
L in feet
100
B = --- +.18 (L = 260 and upwards)
L - 138
(c) Criterion of Service. For a ship of given length the appropriate
factor of subdivision shall be determined by the Criterion of Service
Numeral (hereinafter called the Criterion Numeral) as given by the
following formulae (III) and (IV) where:
|----------|
| C = the Criterion Numeral; |
| s |
|----------|
L = length of the ship, as defined in Regulation 2 of this Chapter;
M = the volume of the machinery space, as defined in Regulation 2
of this Chapter; with the addition thereto of the volume of any permanent
oil fuel bunkers which may be situated above the inner bottom and before
or abaft the machinery space;
P = the whole volume of the passenger spaces below the margin line,
as defined in Regulation 2 of this Chapter;
V = the whole volume of the ship below the margin line;
|---------|
| P = KN where: |
| 1 |
|---------|
N = number of passengers for which the ship is to be
certified, and
K has the following values:
Value of K
Length in metres and volumes in cubic metres .056 L
Length in feet and volumes in cubic feet .6 L
Where the value of KN is greater than the sum of P and the whole
volume of the actual passenger spaces above the margin line, the figure to
be taken as P is that sum or two-thirds
1 KN,
whichever is the greater.
|--|
When | P | is greater than P
| 1 |
|--|
|------|
| M + 2P |
| 1 |
| C = 72 ---- | ...............................(III)
| s V + P - P |
| 1 |
|------|
and in other cases
|---| M + 2P
| C | = 72 ---- ............................(IV)
| s | V
|---|
For ships not having a continuous bulkhead deck the volumes are to be
taken up to the actual margin lines used in determining the floodable
lengths.
(d) Rules for Subdivision of Ships other than those covered by
paragraph (e) of this Regulation.
(i) The subdivision abaft the forepeak of ships 131 metres (430
feet) in length and upwards having a criterion numeral of 23 or less shall
be governed by the factor A given by formula (I); of those having a
criterion numeral of 123 or more by the factor B given by formula (II);
and of those having a criterion numeral between 2?? and 123 by the factor
F obtained by linear interpolation between the factors A and B, using the
formula
|-----------|
| (A - B)(C - 23) |
| s |
| F = A - ---- | .......................(V)
| 100 |
|-----------|
Nevertheless, where the criterion numeral is equal to 45 or
more and simultaneously the computed factor of subdivision as given by
formula (V) is .65 or less, but more than .50, the subdivision abaft the
forepeak shall be governed by the factor. 50.
Where the factor F is less than .40 and it is shown to the
satisfaction of the Administration to be impracticable to comply with the
factor F in a machinery compartment of the ship, the subdivision of such
compartment may be governed by an increased factor, which, however, shall
not exceed .40.
(ii) The subdivision abaft the forepeak of ships less than 131
metres (430 feet) but not less than 79 metres (260 feet) in length having
a criterion numeral equal to S, where
3,574 - 25L 9,382 - 20L
S = ---- (L in metres) = ---- (L in feet)
13 34
shall be governed by the factor unity; of those having a criterion
numeral of 123 or more by the factor B given by the formula (II); of those
having a criterion numeral between S and 123 by the factor F obtained by
linear interpolation between unity and the factor B using the formula:
|--------|
| (1 - B)(C - S) |
| s |
| F = 1 - ---- | .........................(VI)
| 123 - S |
|--------|
(iii) The subdivision abaft the forepeak of ships less than 131
metres (430 feet) but not less than 79 metres (260 feet) in length and
having a criterion numeral less than S, and of all ships less than 79
metres (260 feet) in length shall be governed by the factor unity,
unless, in either case, it is shown to the satisfaction of the
Administration to be impracticable to comply with this factor in any part
of the ship, in which case the Administration may allow such relaxation as
may appear to be justified, having regard to all the circumstances.
(iv) The provisions of sub-paragraph (iii) of this paragraph shall
apply also to ships of whatever length, which are to be certified to carry
a number of passengers exceeding 12 but not exceeding
|-----------|
| 2 2 |
| L L |
| --- (in metres) = --- (in feet) | , or 50, whichever is the less.
| 650 7,000 |
|-----------|
(e) Special Standards of Subdivision for Ships which are permitted
under paragraph (c) of Regulation 27 of Chapter III to carry a number of
persons on board in excess of the lifeboat capacity provided and are
required under paragraph (d) of Regulation 1 of this Chapter to comply
with special provisions
(i) (1) In the case of ship primarily engaged in the carriage of
passengers, the subdivision abaft the forepeak shall be governed by a
factor of .50 or by the factor determined according to paragraphs (c) and
(d) of this Regulation, if less than .50.
(2) In the case of such ships less than 91.5 metres (300 feet)
in length, if the Administration is satisfied that compliance with such
factor would be impracticable in a compartment, it may allow the length of
that compartment to be governed by a higher factor provided the factor
used is the lowest that is practicable and reasonable in the
circumstances.
(ii) Where, in the case of any ship whether less than 91.5 metres
(300 feet) or not, the necessity of carrying appreciable quantities of
cargo makes it impracticable to require the subdivision abaft the forepeak
to be governed by a factor not exceeding .50, the standard of subdivision
to be applied shall be determined in accordance with the following
subparagraphs (1) to (5), subject to the condition that where the
Administration is satisfied that insistence on strict compliance in any
respect would be unreasonable, it may allow such alternative arrangement
of the watertight bulkheads as appears to be justified on merits and will
not diminish the general effectiveness of the subdivision
(1) The provisions of paragraph (c) of this Regulation
relating to the criterion numeral shall apply with the exception that in
|--|
calculating the value of | P | for
| 1 |
|--|
berthed passengers K is to have the value defined in paragraph (c) of this
Regulation, or 3.55 cubic metres (125 cubic feet), whichever is the
greater, and for unbearthed passengers K is to have the value 3.55 cubic
metres (125 cubic feet).
(2) The factor B in paragraph (b) of this Regulation shall be
replaced by the factor BB determined by the following formula:
L in metres
17.6
BB = --- + .20 (L = 55 and upwards)
L - 33
L in feet
57.6
BB = -- + .20 (L = 180 and upwards)
L - 108
(3) The subdivision abaft the forepeak of ships 131 metres
(430 feet) in length and upwards having a criterion numeral of 23 or less
shall be governed by the factor A given by formula (I) in paragraph (b) of
this Regulation; of those having a criterion numeral of 123 or more by the
factor BB given by the formula in sub-paragraph (ii) (2) of this
paragraph; and of those having a criterion numeral between 23 and 123 by
the factor F obtained by linear interpolation between the factors A and
BB, using the formula:
|--------|
| (A - BB) (C - 23) |
| s |
| F = A - ------ |
| 100 |
|--------|
except that if the factor F so obtained is less than .50 the factor to
be used shall be either .50 or the factor calculated according to the
provisions of subparagraph (d) (i) of this Regulation, whichever is the
smaller.
(4) The subdivision abaft the forepeak of ships less than 131
metres (430 feet) but not less than 55 metres (180 feet) in length having
|---|
a criterion numeral equal to | S | where
| 1 |
|---|
|--------------|
| 3,712 - 25L |
| S = ---- (L in metres) |
| 1 |
| 19 |
|--------------|
|--------------|
| 1,950 - 4L |
| S = ---- (L in feet) |
| 1 |
| 10 |
|--------------|
shall be governed by the factor unity; of those having a criterion
numeral of 123 or more by the factor BB given by the formula in
sub-paragraph (ii) (2) of this paragraph; of those having a criterion
|--|
numeral between | S | and 123 by the factor F obtained by linear
| 1 |
|--|
interpolation between unity and the factor BB using the formula:
|--------------|
| (1 - BB) (C - S ) |
| s 1 |
| F = 1 - ------ |
| 123 - S |
| 1 |
|--------------|
except that in either of the two latter cases if the factor so
obtained is less than .50 the subdivision may be governed by a factor not
exceeding .50.
(5) The subdivision abaft the forepeak of ships less than 131
metres (430 feet) but not less than 55 metres (180 feet) in length and
having a criterion numeral less than S and of all ships less than 55
metres (180 feet) in length
1 shall be governed by the factor unity, unless it is
shown to the satisfaction of the Administration to be impracticable to
comply with this factor in particular compartments, in which event the
Administration may allow such relaxations in respect of those compartments
as appear to be justified, having regard to all the circumstances,
provided that the aftermost compartment and as many as possible of the
forward compartments (between the forepeak and the after end of the
machinery space) shall be kept within the floodable length.
Regulation 6: Special Rules concerning Subdivision
(a) Where in a portion or portions of a ship the watertight bulkheads
are carried to a higher deck than in the remainder of the ship and it is
desired to take advantage of this higher extension of the bulkheads in
calculating the floodable length, separate margin lines may be used for
each such portion of the ship provided that:
(i) the sides of the ship are extended throughout the ship's
length to the deck corresponding to the upper margin line and all openings
in the shell plating below this deck throughout the length of the ship are
treated as being below a margin line, for the purposes of Regulation 14
of this Chapter; and
(ii) the two compartments adjacent to the "step" in the bulkhead
deck are each within the permissible length corresponding to their
respective margin lines, and, in addition, their combined length does not
exceed twice the permissible length based on the lower margin line.
(b) (i) A compartment may exceed the permissible length determined by
the rules of Regulation 5 of this Chapter provided the combined length of
each pair of adjacent compartments to which the compartment in question is
common does not exceed either the floodable length or twice the
permissible length, whichever is the less.
(ii) If one of the two adjacent compartments is situated inside
the machinery space, and the second is situated outside the machinery
space, and the average permeability of the portion of the ship in which
the second is situated differs from that of the machinery space, the
combined length of the two compartments shall be adjusted to the mean
average permeability of the two portions of the ship in which the
compartments are situated.
(iii) Where the two adjacent compartments have different factors
of subdivision, the combined length of the two compartments shall be
determined proportionately.
(c) In ship 100 metres (330 feet) in length and upwards, one of the
main transverse bulkheads abaft the forepeak shall be fitted at a distance
from forward perpendicular which is not greater than the permissible
length.
(d) A main transverse bulkhead may be recessed provided that all parts
of the recess lie inboard of vertical surfaces on both sides of the ship,
situated at a distance from the shell plating equal to one-fifth the
breadth of the ship, as defined in Regulation 2 of this Chapter, and
measured at right angles to the centre line at the level of the deepest
subdivision loadline.
Any part of a recess which lies outside these limits shall be dealt
with as a step in accordance with paragraph (e) of this Regulation.
(e) A main transverse bulkhead may be stepped provided that it meets
one of the following conditions:
(i) the combined length of the two compartments, separated by the
bulkhead in question, does not exceed either 90 per cent, of the
floodable length or twice the permissible length, except that in ships
having a factor of subdivision greater than .9, the combined length of
the two compartments in question shall not exceed the permissible length;
(ii) additional subdivision is provided in way of the step to
maintain the same measure of safety as that secured by a plane bulkhead;
(iii) the compartment over which the step extends does not exceed
the permissible length corresponding to a margin line taken 76 milimetres
(3 inches) below the step.
(f) Where a main transverse bulkhead is recessed or stepped, an
equivalent plane bulkhead shall be used in determining the subdivision.
(g) If the distance between two adjacent main transverse bulkheads, or
their equivalent plane bulkheads, or the distance between the transverse
planes passing through the nearest stepped portions of the bulkheads, is
less than 3.05 metres (10 feet) plus 3 per cent. of the length of the
ship, or 10.67 metres (35 feet) whichever is the less, only one of these
bulkheads shall be regarded as forming part of the subdivision of the ship
in accordance with the provisions of Regulation 5 of this Chapter.
(h) Where a main transverse watertight compartment contains local
subdivision and it can be shown to the satisfaction of the Administration
that, after any assumed side damage extending over a length of 3.05 metres
(10 feet) plus 3 per cent. of the length of the ship, or 10.67 metres (35
feet) whichever is the less, the whole volume of the main compartment will
not be flooded, a proportionate allowance may be made in the permissible
length otherwise required for such compartment. In such a case the volume
of effective buoyancy assumed on the undamaged side shall not be greater
than that assumed on the damaged side.
(i) Where the required factor of subdivision is .50 or less, the
combined length of any two adjacent compartments shall not exceed the
floodable length.
Regulation 7: Stability of Ships in Damaged Condition
(a) Sufficient intact stability shall be provided in all service
conditions so as to enable the ship to withstand the final stage of
flooding of any one main compartment which is required to be within the
floodable length.
Where two adjacent main compartments are separated by a bulkhead which
is stepped under the conditions of sub-paragraph (e) (i) of Regulation 6
of this Chapter in intact stability shall be adequate to withstand the
flooding of those two adjacent main compartments.
Where the required factor of subdivision is .50 or less but more than
.33 intact stability shall be adequate to withstand the flooding of any
two adjacent main compartments.
Where the required factor of subdivision is .33 or less the intact
stability shall be adequate to withstand the flooding of any three
adjacent main compartments.
(b) (i) The requirements of paragraph (a) of this Regulation shall be
determined by calculations which are in accordance with paragraphs (c),
(d) and (f) of this Regulation and which take into consideration the
proportions and design characteristics of the ship and the arrangement and
configuration of the damaged compartments. In making these calculations
the ship is to be assumed in the worst anticipated service condition as
regards stability.
(ii) Where it is proposed to fit decks, inner skins or
longitudinal bulkheads of sufficient tightness to seriously restrict the
flow of water, the Administration shall be satisfied that proper
consideration is given to such restrictions in the calculations.
(iii) In cases where the Administration considers the range of
stability in the damage condition to be doubtful, it may require
investigation thereof.
(c) For the purpose of making damage stability calculations the volume
and surface permeabilities shall be in general as follows:
Spaces Permeability
Appropriated to Cargo, Coal or Stores 60
Occupied by Accommodation 95
Occupied by Machinery 85
Intended for Liquids 0 or 95*
[* Whichever results in the more severe requirements.]
Higher surface permeabilities are to be assumed in respect of spaces
which, in the vicinity of the damage waterplane, contain no substantial
quantity of accommodation or machinery and spaces which are not generally
occupied by any substantial quantity of cargo or stores.
(d) Assumed extent of damage shall be as follows:
(i) Longitudinal extent: 3.05 metres (10 feet) plus 3 per cent. of
the length of the ship, or 10.67 metres (35 feet) whichever is the less.
Where the required factor of subdivision is .33 or less the assumed
longitudinal extent of damage shall be increased as necessary so as to
include any two consecutive main transverse watertight bulkheads;
(ii) transverse extent (measured inboard from the ship's side, at
right angles to the centre line at the level of the deepest subdivision
load-line): a distance of one-fifth of the breadth of the ship, as defined
in Regulation 2 of this Chapter; and
(iii) vertical extent: from the base line upwards without limit.
(iv) if any damage of lesser extent than that indicated in
sub-paragraphs (i), (ii) and (iii) of this paragraph would result in a
more severe condition regarding heel or loss of metacentric height, such
damage shall be assumed in the calculations.
(e) Unsymmetrical flooding is to be kept to a minimum consistent with
efficient arrangements. Where it is necessary to correct large angles of
heel, the means adopted shall, where practicable, be self-acting, but in
any case where controls to cross-flooding fittings are provided they shall
be operable from above the bulkhead deck. These fittings together with
their controls as well as the maximum heel before equalization shall be
acceptable to the Administration. Where cross-flooding fittings are
required the time for equalization shall not exceed 15 minutes. Suitable
information concerning the use of cross-flooding fittings shall be
supplied to the master of the ship.**
[** Reference is made to the Recommendation on a Standard Method for
Establishing Compliance with the Requirements for Cross-Flooding
Arrangements in Passenger Ships, adopted by the Organization by Resolution
A.266(VIII).]
(f) The final conditions of the ship after damage and, in the case of
unsymmetrical flooding, after equalization measures have been taken shall
be as follows:
(i) in the case of symmetrical flooding there shall be a positive
residual metacentric height of at least 50 millimetres (2 inches) as
calculated by the constant displacement method;
(ii) in the case of unsymmetrical flooding the total heel shall
not exceed seven degrees, except that, in special cases, the
Administration may allow additional heel due to the unsymmetrical moment,
but in no case shall the final heel exceed 15 degrees;
(iii) in no case shall the margin line be submerged in the final
stage of flooding. If it is considered that the margin line may become
submerged during an intermediate stage of flooding, the Administration may
require such investigations and arrangements as it considers necessary for
the safety of the ship.
(g) The master of the ship shall be supplied with the data necessary
to maintain sufficient intact stability under service conditions to enable
the ship to withstand the critical damage. In the case of ships requiring
cross-flooding the master of the ship shall be informed of the conditions
of stability on which the calculations of heel are based and be warned
that excessive heeling might result should the ship sustain damage when in
a less favourable condition.
(h) (i) No relaxation from the requirements for damage stability may
be considered by the Administration unless it is shown that the intact
metacentric height in any service condition necessary to meet these
requirements is excessive for the service intended.
(ii) Relaxations from the requirements for damage stability shall
be permitted only in exceptional cases and subject to the condition that
the Administration is to be satisfied that the proportions, arrangements
and other characteristics of the ship are the most favourable to stability
after damage which can practically and reasonably be adopted in the
particular circumstances.
Regulation 8: Ballasting
When ballasting with water is necessary, the water ballast should not
in general be carried in tanks intended for oil fuel. In ships in which it
is not practicable to avoid putting water in oil fuel tanks, oily-water
separator equipment to the satisfaction of the Administration shall be
fitted, or other alternative means acceptable to the Administration shall
be provided for disposing of the oily-water ballast.
Regulation 9: Peak and Machinery Space Bulkheads, Shaft Tunnels,etc.
(a) (i) A ship shall have a forepeak or collision bulkhead, which
shall be watertight up to the bulkhead deck. This bulkhead shall be fitted
not less than 5 per cent. of the length of the ship, and not more than
3.05 metres (10 feet) plus 5 per cent of the length of the ship from the
forward perpendicular.
(ii) If the ship has a long forward superstructure, the forepeak
bulkhead shall be extended weathertight to the deck next above the
bulkhead deck. The extension need not be fitted directly over the bulkhead
below, provided it is at least 5 per cent. of the length of the ship from
the forward perpendicular, and the part of the bulkhead deck which forms
the step is made effectively weathertight.
(b) An after-peak bulkhead, and bulkheads dividing the machinery
space, as defined in Regulation 2 of this Chapter, from the cargo and
passenger spaces forward and aft, shall also be fitted and made watertight
up to the bulkhead deck. The after-peak bulkhead may, however, be stepped
below the bulkhead deck, provided the degree of safety of the ship as
regards subdivision is not thereby diminished.
(c) In all cases stern tubes shall be enclosed in watertight spaces of
moderate volume. The stern gland shall be situated in a watertight shaft
tunnel or other watertight space separate from the stern tube compartment
and of such volume that, if flooded by leakage through the stern gland,
the margin line will not be submerged.
Regulation 10: Double Bottoms
(a) A double bottom shall be fitted extending from the forepeak
bulkhead to the after-peak bulkhead as far as this is practicable and
compatible with the design and proper working of the ship.
(i) In ships 50 metres (165 feet) and under 61 metres (200 feet)
in length a double bottom shall be fitted at least from the machinery
space to the forepeak bulkhead, or as near thereto as practicable.
(ii) In ships 61 metres (200 feet) and under 76 metres (249 feet)
in length a double bottom shall be fitted at least outside the machinery
space, and shall extend to the fore and after peak bulkheads, or as near
thereto as practicable.
(iii) In ships 76 metres (249 feet) in length and upwards, a
double bottom shall be fitted amidships, and shall extend to the fore and
after peak bulkheads, or as near thereto as practicable.
(b) Where a double bottom is required to be fitted its depth shall be
to the satisfaction of the Administration and the inner bottom shall be
continued out to the ship's sides in such a manner as to protect the
bottom to the turn of the bilge. Such protection will be deemed
satisfactory if the line of intersection of the outer edge of the margin
plate with the bilge plating is not lower at any part than a horizontal
plane passing through the point of intersection with the frame line
amidships of a transverse diagonal line inclined at 25 degrees to the base
line and cutting it at a point one-half the ship's moulded breadth from
the middle line.
(c) Small wells constructed in the double bottom in connexion with
drainage arrangements of holds, etc., shall not extend downwards more than
necessary. The depth of the well shall in no case be more than the depth
less 457 millimetres (18 inches) of the double bottom at the centreline,
nor shall the well extend below the horizontal plane referred to in
paragraph (b) of this Regulation. A well extending to the outer bottom is,
however, permitted at the after end of the shaft tunnel of screw-ships.
Other wells (e.g., for lubricating oil under main engines) may be
permitted by the Administration if satisfied that the arrangements give
protection equivalent to that afforded by a double bottom complying with
this Regulation.
(d) A double bottom need not be fitted in way of watertight
compartments of moderate size used exclusively for the carriage of
liquids, provided the safety of the ship, in the event of bottom or side
damage, is not, in the opinion of the Administration, thereby impaired.
(e) In the case of ships to which the provisions of paragraph (d) of
Regulation 1 of this Chapter apply and which are engaged on regular
service within the limits of a short international voyage as defined in
Regulation 2 of Chapter III, the Administration may permit a double bottom
to be dispensed with in any part of the ship which is subdivided by a
factor not exceeding .50, if satisfied that the fitting of a double bottom
in that part would not be compatible with the design and proper working of
the ship.
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