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Hull Construction Regulations (C.R.C., c. 1431)

Regulations are current to 2022-06-20 and last amended on 2021-06-23. Previous Versions

PART II (continued)

Standard of Subdivision (continued)

 Watertight bulkheads shall not be stepped unless additional subdivision is provided in way of the step to maintain the same measure of safety as that obtained by a plane bulkhead; where a ship can withstand flooding of the two adjacent compartments separated by a stepped bulkhead and no part of such bulkhead is nearer to either of the other bulkheads bounding the adjacent compartments than is permitted by section 26, the step will be acceptable.

  •  (1) If watertight bulkheads are recessed, the recess shall be inboard from the ship’s side by at least one-fifth the beam amidships measured at right angles to the centre line at the level of the load water line; otherwise, the bulkhead shall comply with the requirements for a stepped bulkhead.

  • (2) In the case of ships that operate solely on the Great Lakes, where the maximum moulded beam at the deck and at the load water line differ appreciably, the inboard damage penetration may be assumed at a mean position between that corresponding to one-fifth of the maximum moulded beam at the deck, measured inboard at the deck, and that corresponding to one-fifth the maximum moulded beam at the load water line measured inboard at the load water line.

 Where a main transverse bulkhead is recessed or stepped, an equivalent plane bulkhead shall be used in determining the subdivision.

 The requirements for double bottoms as specified in section 11 of Part I apply to the ships of this Part.

 The requirements for peak and machinery space bulkheads as specified in section 10 of Part I apply to ships to which this Part applies, except that the requirements for afterpeak bulkheads specified in subsection 10(2) apply only to ships over 150 tons, gross tonnage.

 The requirements for damaged stability calculations as set out in Schedule II shall apply to all ships required by this Part to have at least a one-compartment standard of subdivision.

 The requirements for shaft tunnels as specified in subsection 10(3) of Part I apply to ships in excess of 150 tons, gross tonnage, to which this Part applies.

 The requirements of sections 14 to 18 respecting

  • (a) openings in watertight bulkheads,

  • (b) means of closing openings in watertight bulkheads, etc.,

  • (c) means of operating sliding watertight doors,

  • (d) signals and communications for watertight doors, and

  • (e) construction of watertight doors

apply to all ships to which this Part applies, except that, in the case of ships that are less than 150 tons, gross tonnage, that operate on the Great Lakes or on the sea coasts and that do not proceed more than 20 nautical miles from land, and in the case of all ships on inland waters, other than the Great Lakes, hinged watertight doors complying with subsection 15(3) and (4) may be permitted within accommodation and working spaces, if it is practical to keep such doors closed at all times except when actually being used for transit; in the case of those ships where an emergency generator is not required to be fitted, the requirements for two sources of power prescribed in subsection 16(6) of Part I need not be complied with.

  • SOR/95-254, s. 32

 The requirements for openings in shell plating below the margin line, as specified in section 19 of Part I apply to the ships to which this Part applies.

 The requirements for side and other openings above the margin line and for weather decks, as specified in sections 20 and 21 of Part I, apply to the ships to which this Part applies.

Subdivision Load Line Certificates

  •  (1) The provisions specified in subsection 22(3) of Part I relating to issuance of subdivision load line certificates shall apply to ships of Class VI and Class VII that are 150 tons, gross tonnage, or over to which this Part applies.

  • (2) The requirements for marking of subdivision load lines as specified in subsection 22(2) of Part I shall apply to ships of Class VI and Class VII that are 150 tons, gross tonnage, or over, except that references in paragraph 22(2)(c) to “the disc” shall read “the disc or diamond”; ships of Class VI and Class VII that make voyages to the United States on the Great Lakes shall be marked in similar manner to that specified in paragraphs 22(2)(a) and (b).

  • (3) Subdivision load line certificates will not be issued to ships of Class III, IV, VI or VII that are less than 150 tons, gross tonnage, nor shall such certificates be issued to any ship of Class V or Class VIII regardless of gross tonnage; in the case of such ships, a letter stating the maximum load draft at which the ship is permitted to operate will be issued; this letter shall be posted in the wheel house, under glass, adjacent to the inspection certificate.

  • 1987, c. 7, s. 84(F)

PART III[Repealed, SOR/2017-14, s. 402]

 [Repealed, SOR/2017-14, s. 402]

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PART IV[Repealed, SOR/2017-14, s. 402]

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PART V[Repealed, SOR/2017-14, s. 402]

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PART VI[Repealed, SOR/2017-14, s. 402]

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PART VIIPassenger and Non-passenger Ships

Interpretation

 In this Part, length, in respect of a ship, means,

  • (a) in the case of a ship that is registered under the Act or required by the Act to be registered,

    • (i) the distance from the forepart of the uppermost end of the stem to the aft side of the head of the stern post, except that if a stern post is not fitted to the ship, the measurement shall be taken to the foreside of the head of the rudder stock,

    • (ii) if the ship has no rudder stock or has a rudder stock situated outside of the hull at the stern, the distance from the foreside of the foremost permanent structure to the aft side of the aftermost permanent structure of the ship, not including guards or rubbing strakes, or

    • (iii) if the ship is double-ended, the distance from the aft side of the forward rudder stock to the foreside of the after rudder stock; and

  • (b) in the case of a ship that is not required by the Act to be registered, the horizontal distance between perpendiculars erected at the extreme ends of the outside of the hull.

Application of Part

 Sections 80, 81 and 98 do not apply to a ship to which Part VIII applies.

  • SOR/83-521, s. 3
  • SOR/2017-14, s. 403

Stability in Undamaged Condition

 The provisions of section 81 regarding stability tests in the undamaged condition apply to

  • (a) all passenger ships that make international voyages and any other passenger ship for which such provision is deemed necessary by the Board; and

  • (b) all cargo ships of 500 tons, gross tonnage, and over, that make international voyages, and any other cargo ship for which such provision is deemed necessary by the Board.

  •  (1) All stability tests shall be conducted in the presence of and to the satisfaction of a steamship inspector.

  • (2) The results of the stability tests shall be developed to indicate the stability of the ship in the conditions, including the light, loaded, arrival and worst operating condition, that will be experienced having regard to the service in which the ship will be engaged.

  • (3) The owner shall provide in every such ship a document containing the results of the stability tests required by subsection (2) and other relevant information for the use of the master, and it shall be the responsibility of the owner and master to ensure that a proper measure of stability is maintained for all conditions of loading and ballasting; in general, this information shall be such that the master can readily determine the metacentric height and determine the freeboard for any condition of loading; in the case of a ship that, due to its design or type of service requires special consideration of its stability characteristics, the information shall also include an indication of any operating condition that must be maintained to assure the safety of the ship.

  • (4) If the following plans have not been previously submitted, they shall be made available at the time of the stability test:

    • (a) hydrostatic curves including cross curves of stability and curves of righting levers for the various conditions;

    • (b) capacity plan showing capacities and vertical and longitudinal centres of gravity of cargo spaces, tanks, etc.;

    • (c) tank sounding tables; and

    • (d) draught mark locations.

  • (5) Subject to subsections (7) and (8), the stability test requirements of this section shall also apply to all foreign built vessels, for which application for registry in Canada has been approved, unless proof of the vessel’s stability as required in subsection (3) is submitted and approved by the Board.

  • (6) In the case of any ship, to which this section applies, that is modified in such manner as to affect the ship’s stability, the stability document required by subsection (3) shall be corrected to indicate the new stability characteristics of the ship as approved by the Board.

  • (7) Stability tests may be dispensed with if basic stability data is available from the stability test of a sister ship and if it is shown to the satisfaction of the Board that reliable stability information can be obtained from such basic data.

  • (8) Except in the case of ships of Class I or Class II, the Board may allow the stability test to be dispensed with in exceptional circumstances if it can be shown to the Board’s satisfaction that owing to the form, construction and arrangement of the ship, stability calculations can safely be made without the stability test being conducted.

Watertight Doors for Bulk Cargo Vessels to which Inland Waters Certificates are Issued

[
  • 1987, c. 7, s. 84(F)
]
  •  (1) Where a bulk cargo vessel, the keel of which was laid on or after March 22, 1967 is constructed with side tunnels, the access to the side tunnels shall be from within a deckhouse or companionway on the upper deck and not through the watertight bulkhead at the forward end of the after machinery space nor through the watertight bulkhead at the forward end of the No. 1 cargo hold.

  • (2) Where a bulk cargo vessel, coming under inspection for the first time, is constructed with side tunnels, the requirements of subsection (1) shall be complied with, unless it is shown to the satisfaction of the Board that compliance with those requirements is impracticable.

  • (3) Where a bulk cargo vessel, the keel of which was laid before March 22, 1967 is constructed with side tunnels, the means of access thereto shall be to the satisfaction of the Board.

Cargo Ports and Other Large Access Openings in the Ship’s Side and Superstructure

  •  (1) Subject to subsection (2), sections 82.2, 82.3 and 82.4 apply to every Canadian ship

    • (a) of which the keel is laid,

    • (b) of which construction of the hull is commenced,

    • (c) that is registered as a Canadian ship, or

    • (d) that is modified or converted

    on or after October 1, 1981.

  • (2) Sections 82.2, 82.3 and 82.4 do not apply to a Canadian ship

    • (a) of which the keel was laid,

    • (b) of which construction of the hull was commenced, or

    • (c) that was registered as a Canadian ship

    before October 1, 1981, where the Canadian ship is modified or converted on or after October 1, 1981 if, in the opinion of the Board of Steamship Inspection, it is impracticable to comply with those sections.

  • (3) Notwithstanding subsection (2), on or after October 1, 1982, subsections 82.2(3) and (4), 82.3(2) and 82.4(2) to (4) apply to every Canadian ship.

  • SOR/81-86, s. 2
  • SOR/81-709, s. 1
  •  (1) In every ship the number of cargo ports and other access openings in the shell below the bulkhead deck shall be the minimum compatible with the design and proper working of the ship and each such opening shall be fitted with approved closing appliances so constructed as to maintain the structural and watertight integrity of the structure surrounding such opening.

  • (2) The lower edge of every opening referred to in subsection (1) shall not be below a line that is drawn parallel to the bulkhead deck at side and that has as its lowest point the level of the deepest operational draught at midships.

  • (3) Subject to subsection (4), every opening referred to in subsection (1) shall be provided with a sensing device that will activate the following indicating devices in the wheelhouse:

    • (a) a green light that remains continuously lit as long as the closing appliance on the opening is closed and effectively secured; and

    • (b) a flashing red light and associated audible alarm that operate concurrently when leakage from the opening is detected by the sensing device.

  • (4) Paragraph (3)(b) does not apply to an opening that is located in an accessible area of a continuously manned space.

  • SOR/81-86, s. 2
 
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