Part I - General

From: Transport Canada

Transport Publication TP 11710 E

Previous Page | Next Page

1. SHORT TITLE

1.1 These Standards may be cited as the Oil Tanker Double Hull Construction Standards.

2. INTERPRETATION

2.1 In these Standards,

“Act" means the Canada Shipping Act, 2001;

“Administration” means with respect to non-Canadian vessels, the Government of the State under whose authority the vessel is operating and non-governmental organizations which are authorized to act on the Government’s behalf;

“Annex I of MARPOL ” means the Regulations for the Prevention of Pollution by Oil contained in Annex I to MARPOL adopted by the Marine Environment Protection Committee by resolution MEPC .117(52) as amended by resolution MEPC .141(54);

“breadth” (B) means the maximum breadth of the vessel, measured amidships to the moulded line of the frame in a vessel with a metal shell and to the outer surface of the hull in a vessel with a shell of any other material;

“Board” means the Marine Technical Review Board established under section 26 of the Act;

“Canadian waters” includes the territorial sea of Canada and the internal waters of Canada;

“Category 1 oil tanker” has the same meaning as in subsection 55(1) of the Regulations and regulation 20.3.1 of Annex I to MARPOL where it is defined to mean an oil tanker of 20,000 tonnes deadweight and above carrying crude oil, fuel oil, heavy diesel oil or lubricating oil as cargo, and of 30,000 tonnes deadweight and above carrying oil other than the above, which does not comply with the requirements for oil tankers delivered after 1 June 1982 as defined in regulation 1.28.4 of Annex I;

“Category 2 oil tanker” has the same meaning as in subsection 55(1) of the Regulations and regulation 20.3.2 of Annex I to MARPOL where it is defined to mean an oil tanker of 20,000 tonnes deadweight and above carrying crude oil, fuel oil, heavy diesel oil or lubricating oil as cargo, and of 30,000 tonnes deadweight and above carrying oil other than the above, which complies with the requirements for oil tankers delivered after 1 June 1982 as defined in regulation 1.28.4 of Annex I;

“Category 3 oil tanker” has the same meaning as in subsection 55(1) of the Regulations and regulation 20.3.3 of Annex I to MARPOL where it is defined to mean an oil tanker of 5,000 tonnes deadweight and above but less than that specified for a Category 1 or a Category 2 oil tanker;

“combination carrier” means a vessel designed to carry either oil or solid cargoes in bulk;

“crude oil” has the same meaning as in subsection 1(1) of the Regulations where it is defined to mean any liquid hydrocarbon mixture occurring naturally in the earth whether or not treated to render it suitable for transportation and includes:

  1. crude oil from which certain distillate fractions may have been removed, and
  2. crude oil to which certain distillate fractions may have been added;

“crude oil tanker” has the same meaning as in subsection 1(1) of the Regulations where it is defined to mean an oil tanker engaged in the trade of carrying crude oil;

“deadweight” ( DWT ) has the same meaning as in subsection 1(1) of the Regulations where it is defined to mean the difference in tonnes between the displacement of a vessel in water of a specific gravity of 1.025 at the load waterline corresponding to the assigned summer freeboard and the lightweight of the vessel;

“fishing zone” means a fishing zone prescribed pursuant to section 16 of the Oceans Act;

“fuel oil” means heavy distillates or residues from crude oil or blends of such materials intended for use as a fuel for the production of heat or power of a quality equivalent to the specification acceptable to the IMO (refer to the American Society for Testing and Material’s Specification for Number Four Fuel Oil (Designation D396) or heavier);

“gross tonnage” has the same meaning as in section 2 of the Canada Shipping Act, 2001, where it is defined to mean the volume of a vessel as determined by a tonnage measurer or calculated in accordance with the regulations made under paragraph 77( h);

“heavy diesel oil” means diesel oil other than those distillates of which more than 50 per cent by volume distils at a temperature not exceeding 340 °C when tested by the method acceptable to the IMO (refer to the American Society for Testing and Material’s Standard Test Method (Designation D86));

“heavy grade oil” has the same meaning as in subsection 56(1) of the Regulations and as in regulation 21.2 of Annex I to MARPOL , where it is defined to mean any of the following:

  1. crude oils having a density at 15 °C higher than 900 kg / m 3;
  2. oils, other than crude oils, having either a density at 15 °C higher than 900 kg / m 3 or a kinematic viscosity at 50 °C higher than 180 mm 2/s;
  3. bitumen, tar and their emulsions;

“ IMO ” means International Maritime Organization;

“Lt” means the length in metres between the forward and after extremities of the cargo tanks;

“length”(L) 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 foreside of the stem to the axis of the rudder stock on that waterline, if that be greater; in vessels designed with a rake of keel the waterline on which this length is measured shall be parallel to the designed waterline;

“lightweight” has the same meaning as in subsection 1(1) of the Regulations where it is defined to mean the displacement of a vessel in tonnes without cargo, fuel, lubricating oil, ballast water, fresh water and feed water in tanks, consumable stores, or passengers and crew and their effects;

“major conversion” has the same meaning as in subsection 1(1) of the Regulations where it is defined to mean a conversion of an existing vessel:

  1. that substantially alters the dimensions or carrying capacity of the vessel; or
  2. that changes the type of the vessel; or
  3. the intent of which is to substantially to prolong the life of the vessel; or
  4. that alters the vessel such that it becomes subject to the provisions of the Regulations that would not be applicable to it otherwise;

“ MARPOL ” means the International Convention for the Prevention of Pollution by Ships, 1973, and the Protocols of 1978 and 1997 relating to the Convention, as amended from time to time;

“Minister” means the Minister of Transport and includes any Transport Canada marine safety inspector, person, classification society or other organization if they have been authorized by the Minister to perform any particular function mentioned in this Standard;

“oil” has the same meaning as in section 165 of the Canada Shipping Act, 2001 where it is defined to mean petroleum in any form, including crude oil, fuel oil, sludge, oil refuse and refined products;

“oil fuel” has the same meaning as in regulation 1.4 of Annex I of MARPOL where it is defined to mean any oil used as fuel in connection with the propulsion and auxiliary machinery of the vessel in which such oil is carried;

“oil tanker” means a self-propelled vessel that is constructed or adapted primarily to carry oil in bulk in its cargo spaces, and includes a combination carrier, an NLS tanker as defined in Annex II of MARPOL or a gas carrier that is carrying a cargo or part cargo of oil in bulk (note that in the Regulations an oil tanker includes both self-propelled and non-self-propelled vessels);

“oil tanker delivered after 1 June 1982” has the same meaning as in regulation 1.28.4 of Annex I where it is defined to mean an oil tanker:

  1. for which the building contract is placed after 1 June 1979; or
  2. in the absence of a building contract, the keel of which is laid or which is at a similar stage of construction after 1 January 1980; or
  3. the delivery of which is after 1 June 1982; or
  4. which has undergone a major conversion:
    1. for which the contract is placed after 1 June 1979; or
    2. in the absence of a contract, the construction work of which is begun after 1 January 1980; or
    3. which is completed after 1 June 1982;

“oil tanker delivered before 6 July 1996” means an oil tanker which is not an oil tanker delivered on or after 6 July 1996, as defined in regulation 1.28.5 of Annex I of MARPOL ;

“oil tanker delivered on or after 6 July 1996” refers to an oil tanker mentioned in subsection 54(1) of the Regulations and has the same meaning as in regulation 1.28.6 of Annex I of MARPOL were it is defined to mean an oil tanker:

  1. for which the building contract is placed on or after 6 July 1993, or
  2. in the absence of a building contract, the keel of which is laid or which is at a similar stage of construction on or after 6 January 1994, or
  3. the delivery of which is on or after 6 July 1996, or
  4. which has undergone a major conversion:
    1. for which the contract is placed on or after 6 July 1993; or
    2. in the absence of a contract, the construction work of which is begun on or after 6 January 1994; or
    3. which is completed on or after 6 July 1996;

“product carrier” has the same meaning as in subsection 1(1) of the Regulations where it is defined to mean an oil tanker engaged in the trade of carrying oil other than crude oil;

“Regulations” means the Regulations for the Prevention of Pollution from Ships and for Dangerous Chemicals;

“segregated ballast” has the same meaning as in subsection 1(1) of the Regulations where it is defined to mean ballast water introduced into a tank that is completely separated from the cargo and oil fuel system and permanently allocated to the carriage of ballast or to the carriage of ballast or cargoes other than pollutants;

“tank” has the same meaning as in regulation 1.13 of Annex I of MARPOL were it is defined to mean an enclosed space which is formed by the permanent structure of a vessel and which is designed for the carriage of liquid in bulk;

“wing tank” has the same meaning as in regulation 1.14 of Annex I of MARPOL were it is defined to mean any tank adjacent to the side shell plating.

2.2 Unless specifically defined in subsection 2.1, all other words and expressions used in these Standards have the same meaning as in the Canada Shipping Act, 2001 and the Regulations for the Prevention of Pollution from Ships and for Dangerous Chemicals.

3. APPLICATION

3.1 These Standards apply to:

  1. all Canadian-registered oil tankers; and
  2. all oil tankers registered in a country other than Canada, when operating in Canadian waters and the fishing zones of Canada.

3.2 These Standards do not apply in respect of any warship, naval auxiliary or other vessel that is owned or operated by a state and used in government non-commercial service.

4. RESPONSIBILITY

4.1 The owner and operator of every oil tanker shall ensure that the vessel complies with all the applicable provisions of these Standards, in addition to the applicable regulations under the Canada Shipping Act, 2001 and the Arctic Waters Pollution Prevention Act.

5. EQUIVALENTS

5.1 Subject to subsection 5.2, where these Standards require that a particular fitting, material, appliance, apparatus, item of equipment or type thereof shall be fitted or carried on an oil tanker, or that any particular provision shall be made, or any procedure or arrangement shall be complied with, the Minister may allow any other fitting, material, appliance, apparatus, item of equipment or type thereof to be fitted or carried, or any other provision, procedure or arrangement to be made on the oil tanker, if the Minister is satisfied by trial thereof or otherwise that such fitting, material, appliance, apparatus, item of equipment or type thereof or that any particular provision, procedure or arrangement is at least as effective as that required by these Standards.

5.2 Approval of an equivalent arrangement may be revoked at any time if it is found that the chosen arrangement is not satisfactory.

Previous Page | Next Page

Report a problem with this page

Date modified: