CANADA SHIPPING ACT - Load Line Regulations (Inland)

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CANADA SHIPPING ACT

Load Line Regulations (Inland)

CRC, Vol. XVI, c. 1440



CANADA SHIPPING ACT

Load Line Regulations (Inland)

REGULATIONS RESPECTING LOAD LINES
FOR INLAND WATERS SHIPS

Short Title

1. These Regulations may be cited as the Load Line Regulations (Inland).

Interpretation

2. In these Regulations,

"Act" means the Canada Shipping Act; (Loi)

"approved" means, unless otherwise specified, approved by the Board; (approuvé)

"assigned freeboard" means a freeboard assigned to a ship pursuant to section 11; (franc-bord assigné)

"Assigning Authority" means the Chairman, Lloyd's Register of Shipping, Bureau Veritas, American Bureau of Shipping, Det Norske Veritas, Germanischer Lloyd, Registro Italiano Navale or Nippon Kaiji Kyokai; (autorité habilitée)

"Board" means the Board of Steamship Inspection created pursuant to Part VIII of the Act; (Bureau)

"certificate" means a Great Lakes and Inland Waters of Canada Load Line Certificate issued pursuant to section 12 or a Load Line Certificate for the Great Lakes issued pursuant to load line regulations made under the laws of the United States; (certificat)

"Chairman" means the Chairman of the Board; (président)

"deck line" means the deck line marked on a ship in accordance with Part III of Schedule I; (ligne de pont)

"freeboard" means a distance that is calculated in respect of a ship in accordance with these Regulations and measured vertically downwards from a position coinciding with the midpoint of the upper edge of the deck line; (franc-bord)

"inspector" means a steamship inspector appointed pursuant to section 366 of the Act; (inspecteur)

"length", in respect of a ship, has the same meaning as in Schedule I; (longueur)

"load line" means a line marked in accordance with Part III of Schedule I on the side of a ship and in such a place that a projection of the upper edge passes through the lower limit of a freeboard specified for the ship on its certificate; (ligne de charge)

"load line mark" means any mark described in Part III of Schedule I; (marque de franc-bord)

"Minister" means the Minister of Transport; (Ministre)

"surveyor" means a surveyor appointed pursuant to section 8 and includes an inspector. (visiteur)

Application

3. (1) Subject to subsections (2) and (3), these Regulations apply to every ship making a voyage on the inland waters of Canada and to every Canadian ship making an inland voyage that is

(a) 24.1 m in length or over, the keel of which is laid or construction of the hull of which is commenced on or after the coming into force of section 436 of the Act; or

(b) a ship other than a ship described in paragraph (a) where the owner of the ship has requested that these Regulations apply to that ship.

(2) These Regulations do not apply to

(a) a ship of war, a fishing vessel or a pleasure yacht;

(b) a ship that is

(i) marked with the load line marks described in the Load Line Regulations (Sea) or the General Load Line Rules, and

(ii) assigned freeboards in accordance with the Load Line Regulations (Sea), the General Load Line Rules or equivalent regulations made in a country that is a party to the International Convention on Load Lines 1966, or the International Load Line Convention, 1930;

(c) a ship making a voyage that is

(i) a minor waters voyage, Class II, or

(ii) a voyage on any lake, the open waters of which do not exceed 25 nautical miles in length and 5 nautical miles in breadth; or

(d) a ship making a voyage from a place in Canada to another place in Canada that

(i) does not carry passengers or cargo, or

(ii) is not self-propelled and does not carry passengers or crew or carry oil as cargo.

(3) Sections 6 to 20 do not apply to a ship that has been issued a certificate in accordance with load line regulations for ships making inland voyages made under the laws of the United States.

General

4. (1) No ship shall be so loaded as to submerge the upper edge of the appropriate load line of the ship.

(2) The appropriate load line of a ship is the load line that,

(a) in the case of a ship during a season described in subsection 1(2) of Schedule I, marks the assigned freeboard applicable during that season; and

(b) in the case of a ship in

(i) fresh water, marks the appropriate assigned fresh water freeboard, or

(ii) salt water, marks the appropriate assigned salt water freeboard.

(3) Where the appropriate load line as described in subsection (2) is not marked on the sides of the ship, the point on each side of the ship coinciding with the lower limit of the freeboard

(a) that corresponds to that load line and is specified for the ship on its certificate, or

(b) that corresponds to that load line and should be assigned to that ship, in the case of a ship whose certificate does not specify the corresponding freeboard for the appropriate load line,

is deemed to be the appropriate load line.

5. No master or owner of a ship shall

(a) permit that ship to leave a place in Canada, or

(b) in the case of a Canadian ship, permit that ship to leave any place not in Canada,

unless a certificate is on board and in force for that ship and unless the ship is marked in accordance with that certificate and with all appropriate load lines.

6. No master or owner of a ship shall

(a) permit that ship to leave a place in Canada, or

(b) in the case of a Canadian ship, permit that ship to leave any place not in Canada,

unless the ship has been surveyed, inspected and marked as required by these Regulations.

7. (1) No master or owner of a ship shall permit a load line mark on a ship to be concealed, defaced, obliterated, altered or removed.

(2) Notwithstanding subsection (1), any of the marks referred to in subsection (1) may be altered or removed with the consent in writing of a surveyor.

Assigning Authorities

8. An Assigning Authority may, subject to these Regulations and to any conditions the Board may prescribe, assign freeboards to and issue certificates for ships and, in the case of an Assigning Authority other than the Chairman, appoint surveyors to survey and inspect ships.

Surveys and Inspections

9. (1) The owner of every ship shall ensure that the ship is

(a) surveyed as described in subsection (2), and

(b) periodically inspected as described in subsection (3)

by a surveyor.

(2) Every ship shall be surveyed before a certificate is issued for it so as to ascertain that

(a) the arrangements, material and scantlings of the hull and superstructure are in an efficient condition for the service for which the ship is intended and meet the requirements of Schedule I;

(b) the fittings and appliances and the loading and stability information meet the requirements of Part I of Schedule I; and

(c) the load line marks correspond with the assigned freeboards.

(3) Subject to subsections (4) and (5), every ship shall be periodically inspected, during the period that the certificate remains in force, within the three-month period immediately preceding or immediately following the anniversary date of the survey shown on the ship's certificate so as to ensure that

(a) material alterations have not taken place to the hull or superstructure that would affect the calculations determining the positions of the load lines specified in the certificate of the ship or that would affect the validity of the loading and stability information required by Schedule I;

(b) the fittings and appliances for the protection of openings, the guard-rails, the freeing ports and the means of access to the crew's quarters of the ship have been maintained in an effective condition; and

(c) the load lines are marked in accordance with the certificate.

(4) Subsection (3) does not apply to a ship during any period when the ship is laid up, but its owner shall ensure that it is inspected as described in subsection (3) before it is returned to service.

(5) Where a ship is laid up in fresh water for a period of not less than three months during the winter following a survey, the first of the periodical inspections referred to in subsection (3) may be made at the end of that period and subsequent periodical inspections may, during the period that the certificate remains in force, be made within the three-month period immediately preceding or immediately following the anniversary date of the first periodical inspection.

(6) Where a periodical inspection described in subsection (3) is made of a ship, and the surveyor making the inspection is satisfied that the ship meets the requirements of paragraphs (3)(a) to (c), he shall endorse the certificate to that effect in the space provided therefor.

(7) After a survey or inspection of a ship as required by this section is completed, no alteration shall take place in the structure, equipment, arrangements, material or scantlings of the ship without the permission of the Assigning Authority that assigned the freeboards to the ship.

(8) Where a survey or inspection referred to in this section is made by a surveyor acting on behalf of the Chairman, the owner of the ship shall pay the appropriate fee set out in the Board of Steamship Inspection Scale of Fees.

(9) Every Assigning Authority shall report to the Minister every ship that to his knowledge has not been inspected as required by paragraph (1)(b).

Surveyors Reports and Records

10. (1) On completion of the survey referred to in paragraph 9(1)(a), the surveyor who made the survey shall forward to the Assigning Authority

(a) a report stating the result of the survey; and

(b) a record of all the details of the survey or, in the case of a ship that has been previously surveyed, any amendments to the record.

(2) Every Assigning Authority who assigns a freeboard to a ship shall forthwith return a copy of the record referred to in paragraph (1)(b) to the owner who shall place it on board the ship in the custody of the master.

(3) On completion of the periodical inspection referred to in paragraph 9(1)(b), the surveyor shall forward to the Assigning Authority a report stating the result of the inspection.

Assignment of Freeboards

11. (1) An Assigning Authority may, subject to subsection (2), assign freeboards, in accordance with Part II of Schedule I, to any ship that complies with Part I of that Schedule.

(2) A freeboard that is greater than any minimum freeboard calculated in accordance with Schedule I may be assigned to a ship and any such freeboard applies during every season to which an equal or smaller freeboard would have applied if it had been assigned in accordance with Schedule I.

(3) No freeboard of less than 50 mm, other than a freeboard corrected pursuant to section 24 of Part II of Schedule I, shall be assigned to a ship.

(4) Notwithstanding subsection (1), the Board may assign to any dredger, sandsucker, open hopper barge or other ship of special design a freeboard that is less than the freeboard calculated in accordance with Part II of Schedule I, if the design and stability of the ship is such that such lesser freeboard will not adversely affect the safety of the ship.

Issue of Certificates

12. (1) Subject to subsection (2), an Assigning Authority may issue a certificate for a ship in the form set out in Schedule II, where the ship

(a) has been surveyed by a surveyor as required by paragraph 9(1)(a);

(b) complies with Part I of Schedule I;

(c) has been assigned freeboards by an Assigning Authority; and

(d) has been marked in accordance with Part III of Schedule I.

(2) Where the Chairman is the Assigning Authority, a certificate shall not be issued for a ship for which the Chairman has not previously assigned freeboards or on which material alterations have taken place that would affect the calculations determining the positions of its load lines unless the owner thereof has

(a) made a written request to the Chairman to have the certificate issued to the ship;

(b) submitted all such plans and information as the Board may require; and

(c) provided facilities that are, in the opinion of the surveyor, sufficient for the purpose of surveying the ship.

(3) Where the Assigning Authority deems it necessary, due to the design or strength of the hull or superstructure, to place any limits on the operation of a ship referred to in subsection (1), any such limits shall be endorsed on the certificate in the space provided therein.

(4) Notwithstanding any other provision of these Regulations, where a ship

(a) has been surveyed by a surveyor as required by paragraph 9(1)(a),

(b) complies with Part I of Schedule I, and

(c) has been marked in accordance with Part III of Schedule I,

the surveyor who surveyed the ship may, with the approval of an Assigning Authority, assign freeboards to the ship and issue for the ship a certificate in the form set out in Schedule III.

(5) A certificate issued in respect of a ship in accordance with subsection (4) is valid until the earlier of

(a) the date specified in the certificate,

(b) the date three months after the date of the survey referred to in that subsection, or

(c) the issue of a certificate in respect of that ship pursuant to subsection (1).

General Provisions Respecting Certificates

13. (1) Where a certificate is issued by the Chairman, the certificate shall

(a) bear the seal of the Minister;

(b) be registered with the Department of Transport in Ottawa; and

(c) be marked with a registration number.

(2) Where a certificate is issued by an inspector, the certificate shall be registered with the Department of Transport in Ottawa and marked with a registration number.

(3) A certified copy shall be made of every certificate issued by the Chairman and, where an endorsement is made on the certificate, an identical endorsement shall be made thereafter on the certified copy.

14. (1) The period of validity of a certificate issued for a ship shall be determined by the Assigning Authority that issued the certificate and shall not exceed five years.

(2) Notwithstanding subsection (1), a certificate issued for a ship is no longer valid if any alterations have taken place in the structure, equipment, arrangements, material or scantlings of the ship that would necessitate the assignment of increased freeboards to the ship.

15. An Assigning Authority, other than the Chairman, shall, upon issuing a certificate for a ship, send to the Chairman,

(a) in the case of a survey required by paragraph 9(1)(a),

(i) a certified copy of the certificate issued for the ship,

(ii) a statement of the date and place of delivery of the certificate,

(iii) a certified copy of the calculations used to determine the freeboards of the ship, where new freeboards have been assigned, and

(iv) a copy of the record referred to in paragraph 10(1)(b); and

(b) in the case of a periodical inspection required by paragraph 9(1)(b),

(i) a copy of the report stating the result of the inspection,

(ii) a statement of the date and place of the inspection,

(iii) a statement that the certificate has been endorsed as required by subsection 9(6), and

(iv) a copy of any amendments to the record referred to in paragraph 10(1)(b).

Verification of Marks

16. No certificate shall be delivered to a ship until the surveyor acting on behalf of the Assigning Authority has certified in his report that the load line marks are correctly and permanently indicated on the sides of the ship.

Cancellation of a Certificate

17. A certificate issued for a ship, pursuant to section 12, shall be cancelled by the Minister where he has reason to believe that

(a) material alterations have taken place in the hull or superstructures of the ship that would necessitate increased freeboards;

(b) the fittings and appliances referred to in subsection 9(3) were not maintained in an effective condition;

(c) the ship was not inspected as required by paragraph 9(1)(b); or

(d) the structural strength of the ship was lowered to such an extent that the ship is unsafe.

Display of a Certificate

18. (1) Subject to subsection (2), when a certificate is issued for a ship, the owner of the ship shall thereupon cause it to be framed and posted in a conspicuous place on board the ship and the master shall keep it so framed and posted for as long as the certificate is in force and the ship is in use.

(2) In the case of a ship that is unmanned and being towed, the certificate issued for the ship shall be placed on board the towing vessel in the custody of the master.

Repairs

19. The owner of every ship that is repaired shall ensure that the ship complies with the requirements of these Regulations that applied to the ship prior to the repair.

Exemptions

20. Notwithstanding any other provision of these Regulations, the Board may,

(a) if it is satisfied in all respects as to the safety of the ship, passengers and crew during a voyage, exempt from any requirement of these Regulations

(i) a ship that embodies features of a novel kind where application of these Regulations might impede research into the development of such features or their subsequent incorporation into ships, or

(ii) a ship not normally engaged on a voyage to which these Regulations apply but is required in exceptional circumstances to make one such voyage;

(b) allow any fitting, material, appliance or apparatus to be fitted, or any other arrangement to be made in a ship, other than that required by these Regulations, where it is satisfied by trial thereof or otherwise that any such arrangement is at least as effective as any required by these Regulations; and

(c) where it is satisfied in all respects as to the safety of the ship, passengers and crew, approve experimental arrangements in a ship.

Enforcement

21. Where a certificate is in force for a ship, the master of the ship shall produce the certificate, or a certified copy thereof, to the officer of customs from whom the clearance of the ship from any place in Canada is requested.

22. (1) An inspector or port warden may go on board any ship

(a) to determine whether a certificate is on board the ship;

(b) to take such measurements as are necessary to determine whether the ship is loaded beyond its limit of submergence as specified on its certificate; and

(c) to determine whether the positions of the deck lines and load lines marked on the ship correspond to the position specified for those lines in the ship's certificate.

(2) An inspector may go on board any ship to determine whether

(a) any material alterations have taken place in the hull or superstructures of the ship that affect the calculations determining the positions of the load lines specified in the certificate for the ship; and

(b) the fittings and appliances for the protection of openings, the guard-rails, the freeing ports and the access to the crew's quarters of the ship have been maintained in an effective condition.

Detention of a Ship

23. (1) Where an inspector or port warden has determined that

(a) the deck lines and load lines specified in the certificate are not permanently marked on both sides of a ship, or

(b) the lines on the sides of a ship purporting to be the deck lines or load lines specified in the certificate do not correspond to the positions specified in the certificate for those lines,

the ship shall be detained by an inspector or collector of customs until it has been marked as required by these Regulations.

(2) Where an inspector or port warden has determined that the appropriate load line on either side of the ship is submerged beyond the limit of submergence specified in the certificate, the ship shall be detained by an inspector or collector of customs until the appropriate load line ceases to be so submerged.

(3) Where the owner of a ship or his representative cannot, on demand, produce a certificate to a collector of customs, an inspector, a port warden or any other person designated by the Minister, the ship shall be detained by an inspector or collector of customs until the certificate is so produced.

(4) Where a certificate issued pursuant to these Regulations in respect of a ship expires or is cancelled, the Minister may require the owner of the ship or his representative to deliver up the certificate and any certified copies thereof to whomever he directs and the ship may be detained by an inspector or collector of customs until they are so delivered.

(5) Where an inspector has determined that, as a result of any material alterations that have taken place in the hull or superstructures of a ship, the calculations determining the position of the load lines have been affected, the ship shall be detained by an inspector or collector of customs until the condition of the ship has been rectified to the satisfaction of an inspector or until a new certificate has been issued.

(6) Where an inspector has determined that the fittings and appliances for the protection of openings, the guard-rails, the freeing ports and the means of access to the crew's quarters of a ship have not been maintained in an effective condition, the ship shall be detained by an inspector or collector of customs until the condition of the ship is such that, in the opinion of the inspector who made the determination, it can proceed on a voyage without danger to the passengers or crew.

SCHEDULE I

(ss. 2, 4, 9, 11 and 12)

DETERMINATION AND MARKING OF FREEBOARDS

Definitions

1. (1) In this Schedule,

"after perpendicular" means a perpendicular that coincides with the after end of the length (L) of a ship; (perpendiculaire arrière)

"amidships" means the middle of the length (L); (milieu du navire)

"breadth (B)" means the maximum breadth of a ship, measured amidships to

(a) the moulded line of the frame, in a ship with a metal shell, or

(b) the outer surface of the hull, in a ship with a shell of a material other than metal; (largeur (B))

"depth for freeboard (D)" means the distance measured from the same point as moulded depth, and to the upper surface of the freeboard deck or stringer plate, with no allowance for sheathing, and in the case of a ship having a rounded gunwale with a radius greater than four per cent of the breadth (B) or having topsides of unusual form, means the depth for freeboard of a ship having a midship section with vertical topsides and with the same round of beam and area of topside section equal to that provided by the actual midship section; (creux de franc-bord (D))

"efficient trunk" means a trunk or similar structure that does not extend to the sides of the ship and that meets the following requirements:

(a) the trunk is at least as strong as the superstructure,

(b) no hatchways are in the freeboard deck in way of the trunk, however, small access openings with watertight covers are permitted in the freeboard deck,

(c) the trunk deck stringer provides a satisfactory gangway and sufficient lateral stiffness,

(d) a permanent working platform fore and aft fitted with guard-rails is provided by the trunk deck, or by detached trunks connected to superstructures by efficient permanent gangways,

(e) open-rails are fitted for at least half the length of the parts of the freeboard deck in way of the trunk that are in exposed positions,

(f) ventilators on the freeboard deck adjacent to the trunk are capable of being closed watertight and the means of closing are permanently attached to the ventilators,

(g) the machinery casings are protected by the trunk, by an enclosed superstructure of at least standard height or by a deckhouse of the same height as and of strength and weathertightness equivalent to such a superstructure,

(h) the breadth of the trunk is at least 60 per cent of the breadth of the ship, and

(i) where there is no superstructure, the length of the trunk is at least 0.6 L; (trunk efficace)

"enclosed superstructure" means a superstructure with

(a) enclosing bulkheads complying with the requirements of section 3 of this Schedule,

(b) access openings, if any, in the bulkheads fitted with doors that comply with section 4 of this Schedule,

(c) all other openings in the sides or ends of the superstructure fitted with efficient weathertight means of closing,

(d) discharges that comply with section 14 of this Schedule,

(e) side scuttles that comply with section 11 of this Schedule, and

(f) in the case of a bridge, poop or raised quarter-deck, such access that the crew can reach accommodations, machinery or other working spaces inside the superstructure by alternative means that are available at all times when bulkhead openings are closed; (superstructure fermée)

"exposed position" means a position that is

(a) exposed to weather and sea, or

(b) within a structure, so exposed, other than an enclosed superstructure; (position exposée)

"forward perpendicular" means a perpendicular that coincides with the foreside of the stem on the waterline on which the length of the ship is measured; (perpendiculaire avant)

"freeboard deck" means

(a) the uppermost complete deck exposed to weather and sea that has permanent means of closing all openings in the exposed part thereof, and below which all openings in the sides of the ship are fitted with permanent means of watertight closing, except that where that exposed deck is stepped, the freeboard deck shall be deemed to be the line drawn along the lowest line of that exposed deck and continued parallel to the upper part of that exposed deck, or

(b) where the owner requests and the Assigning Authority approves, a permanent deck that is lower than the deck described in paragraph (a) and that is continuous in a fore and aft direction at least between the machinery space and peak bulkheads and continuous athwartships, except that, where that lower deck is stepped, the freeboard deck shall be deemed to be the line drawn along the lowest line of that lower deck and continued parallel to the upper part of that lower deck; (pont de franc-bord)

"height of superstructure" means the least vertical height measured at the side from the top of the superstructure deck beams to the top of the freeboard deck beams; (hauteur d'une superstructure)

"intact" means, in respect of a front bulkhead, without openings; (intact)

"length (L)" means, in respect of a ship,

(a) 96 per cent of the total length of the ship in metres, or

(b) the length of the ship in metres from the foreside of the stem to the axis of the rudder stock,

on a water line at 85 per cent of the least moulded depth measured from the top of the keel, whichever is the greater length, except that in ships designed with a rake of keel the water line on which this length is measured shall be parallel to the designed water line; (longueur (L))

"length of superstructure (S)" means the length of those parts of the superstructure that lie within the length (L) and extend athwartship in a straight line from side to side of the ship or to within four per cent of the breadth (B) of the ship's side; (longueur de la superstructure (S))

"moulded depth" means, subject to paragraphs (a) to (d), the vertical distance measured from the top of the keel to the top of the freeboard deck beam at side, but

(a) in vessels of other than metal construction, the distance is measured from the lower edge of the keel rabbet,

(b) where the form at the lower part of the midship section is of a hollow character, or where thick garboards are fitted, the distance is measured from the point where the line of the flat of the bottom continued inwards cuts the side of the keel,

(c) in ships having rounded gunwales, the distance is measured to the point of intersection of the moulded lines of the deck and sides, the lines extending as though the gunwale were of angular design,

(d) where the freeboard deck is stepped and the raised part of the deck extends over the point at which the moulded depth is to be determined, the moulded depth shall be measured to a line of reference extending from the lower part of the deck along a line parallel with the raised part; (creux sur quille)

"Position 1", in respect of any structure, means an opening or fitting, in an exposed position on

(a) the freeboard deck or a raised quarter-deck,

(b) a superstructure deck or a trunk deck forward of a point one-quarter of the ship's length (L) from the forward perpendicular, or

(c) a trunk deck the height of which above the freeboard deck is less than standard height (Hs); (emplacement de la catégorie 1)

"Position 2", in respect of any structure, means an opening or fitting, in an exposed position on

(a) a superstructure deck, or

(b) a trunk deck the height of which is equal to or greater than Hs,

abaft the point one-quarter of the ship's length (L) from the forward perpendicular; (emplacement de la catégorie 2)

"standard height of superstructure or trunk (Hs)" has the same meaning as in Part II of this Schedule; (hauteur normale de superstructure ou de trunk (Hs))

"summer draught" means the distance measured from the top of the keel of a ship to the upper edge of the load line that would mark the summer fresh water freeboard calculated in accordance with Part II of this Schedule if that freeboard were assigned to the ship; (tirant d'eau d'été)

"superstructure" means a decked structure on the freeboard deck, part of which extends from side to side of the ship or with the side plating not being inboard of the shell plating more than four per cent of the breadth (B), and includes that part of the hull extending above the freeboard deck where the freeboard deck is a lower deck; (superstructure)

"Type A ship" means a ship in which

(a) no cargo ports or similar sideshell openings are below the freeboard deck,

(b) there are only small main deck openings fitted with watertight gasketed hatch covers of steel or equivalent material,

(c) no dimension of a main deck cargo opening is greater than 1.83 m and the total area of each such opening does not exceed 1.67 m2, and

(d) there are no more than two main deck cargo openings to a single cargo space; (navire du type A)

"Type B ship" means a ship that is not a Type A ship; (navire du type B)

"watertight" means designed to withstand a specific static head of water; (étanche à l'eau)

"weathertight" means designed to prevent water from penetrating the ship in any sea conditions. (étanche aux intempéries)

(2) For the purposes of this Schedule,

(a) the midsummer season is the period from May 1 to September 15;

(b) the summer seasons are the periods from April 16 to April 30 and from September 16 to September 30;

(c) the intermediate seasons are the periods from April 1 to April 15 and from October 1 to October 31; and

(d) the winter season is the period from November 1 in one year to March 31 in the next year.

PART I

CONDITIONS OF ASSIGNMENT OF
FREEBOARD

Information to be Supplied to the Master

2. (1) The master of every ship shall be supplied with sufficient information, in an approved form, to enable him to arrange for the loading and ballasting of his ship in such a way as to avoid the creation of any unacceptable stresses in the ship's structure, provided that this requirement need not apply to any particular length, design or class of ship where the Board considers it to be unnecessary.

(2) The master of every ship shall be supplied with sufficient information in an approved form to give him guidance as to the stability of the ship under varying conditions of service and a copy of that information shall be furnished to the Board.

Superstructure End Bulkheads

3. Bulkheads at exposed ends of enclosed superstructures shall be of efficient construction and shall be to the satisfaction of the Assigning Authority.

Doors

4. (1) All access openings in bulkheads at ends of enclosed superstructures shall be fitted with doors of steel or other material equivalent in strength, permanently and strongly attached to the bulkhead, and framed, stiffened and fitted so that the whole structure is equivalent in strength to the unpierced bulkhead and is weathertight when closed.

(2) The means for securing the doors referred to in subsection (1) weathertight shall consist of gaskets and clamping devices or other equivalent means and shall be permanently attached to the bulkhead or to the doors themselves, and the doors shall be so arranged that they can be operated from both sides of the bulkhead.

(3) The height of the sills of access openings in bulkheads at ends of enclosed superstructures shall be at least 305 mm above the deck.

Hatchways

5. (1) Subject to subsection (2), hatchway coamings shall be of substantial construction and shall be

(a) in the case of those coamings in Position 1, at least 460 mm above the deck; and

(b) in the case of those coamings in Position 2, at least 305 mm above the deck.

(2) The height of the coamings referred to in subsection (1) may be reduced, or the coamings may be omitted entirely, if the Board is satisfied that the safety of the ship is not thereby impaired in any sea conditions.

(3) Hatchways in Positions 1 and 2 shall be fitted with weathertight hatch covers of steel or other equivalent material and with gaskets and clamping devices.

(4) For ships 106.7 m in length or over, where weathertight covers on hatchways in Positions 1 and 2 are of mild steel, the strength shall be calculated with assumed loads not less than 12 kPa on hatchways in Position 1 and not less than 9.6 kPa on hatchways in Position 2, and the product of the maximum stress thus calculated and the factor of 4.25 shall not exceed the minimum ultimate strength of the material.

(5) Hatchway covers in Positions 1 and 2 shall be so designed as to limit the deflection to not more than 0.0028 times the span under the loads referred to in subsection (4) and mild steel plating forming the tops of covers shall not be less in thickness than one per cent of the spacing of stiffeners or 6 mm, whichever is the greater.

(6) The assumed loads on hatchways in Position 1 may be reduced to 9.6 kPa for ships 24.1 m in length and the corresponding loads on hatchways in Position 2 may be reduced to 7.2 kPa and in all cases values at intermediate lengths shall be obtained by linear interpolation.

(7) Coamings and hatchway covers to exposed hatchways on decks above the superstructure deck shall comply with strength requirements satisfactory to the Assigning Authority.

(8) The strength and stiffness of hatchway covers made of materials other than mild steel shall be equivalent to those of mild steel to the satisfaction of the Assigning Authority.

(9) The means for securing and maintaining weathertightness of hatch covers shall be to the satisfaction of the Assigning Authority and shall ensure that the tightness can be maintained in any sea conditions.

Cargo Ports and Other Similar Openings

6. (1) Cargo ports and other similar openings in the sides of ships below the freeboard deck shall be fitted with doors or with covers so designed as to ensure watertightness and structural integrity commensurate with the surrounding shell plating.

(2) Cargo ports and other similar openings above the freeboard deck shall be fitted with weathertight closures and shall have structural integrity commensurate with the surrounding plating.

(3) The number of cargo ports and other similar openings shall be the minimum compatible with the design and proper working of the ship.

(4) Unless permitted by the Board, the lower edges of cargo ports and other similar openings shall not be below a line drawn parallel to the freeboard deck at side that has at its lowest point the upper edge of the uppermost load line.

Machinery Space Openings

7. (1) Machinery space openings in Position 1 or 2 shall be efficiently framed and enclosed by steel casings of ample strength, and where the casings are not protected by other structures, their strength shall be to the satisfaction of the Board.

(2) Doorways in the casings required by subsection (1) shall be fitted with doors complying with the requirements of section 4 of this Part.

(3) Openings in the casings required by subsection (1) other than doorways shall be fitted with strong covers of steel or other equivalent material, permanently attached and capable of being secured weathertight from both sides of the opening and the lower edge of such openings shall be at a height above the deck of at least 305 mm.

(4) Any funnel or machinery space ventilator that must be kept open for the essential operations of the ship shall have coamings of a height above the deck of at least

(a) 3.81 m if in Position 1; and

(b) 1.83 m if in Position 2.

Special Conditions of Assignment for Type A Ships

8. (1) Machinery casings on Type A ships shall be protected by an enclosed poop or bridge of at least standard height, or by a deckhouse of equal height and equivalent strength, provided that machinery casings may be exposed if, subject to subsection (2), there are no openings giving direct access from the freeboard deck to the machinery space.

(2) A door complying with the requirements of section 4 of this Part may be permitted in the machinery casing, provided that it leads to a space or passageway that is as strongly constructed as the casing and is separated from the stairway to the engine room by a second weathertight door of steel or other equivalent material.

(3) An efficiently constructed fore and aft permanent gangway of sufficient strength shall be fitted on Type A ships at the level of the superstructure deck between the poop and the midship bridge or deckhouse where fitted, or equivalent means of access such as passages below deck shall be provided to carry out the purpose of the gangway.

(4) In all places on Type A ships other than those referred to in subsection (3) and on Type A ships without a midship bridge, arrangements to the satisfaction of the Board shall be provided to safeguard the crew in reaching all exposed parts used in the essential operation of the ship.

(5) On Type A ships there shall be safe and satisfactory access from the gangway level between separate crew accommodations and also between crew accommodations and the machinery space.

(6) Exposed hatchways on the freeboard and forecastle decks or on the tops of expansion trunks on Type A ships shall be provided with efficient watertight covers of steel or other equivalent material.

(7) Type A ships with bulwarks shall have open rails fitted for at least half the length of the exposed parts of the exposed deck or shall have other effective freeing arrangements and the upper edge of the sheer strake shall be kept as low as practicable.

(8) Where superstructures on Type A ships are connected by trunks, open rails shall be fitted for the whole length of the exposed parts of the freeboard deck.

Air Pipes

9. (1) Where air pipes to ballast and other tanks extend above the freeboard or superstructure decks, the exposed parts of the pipes shall be of substantial construction and the height from the deck to the point where water may have access below shall be at least 760 mm on the freeboard deck, 610 mm on raised quarter decks and 305 mm on other superstructure decks.

(2) Where the heights described in subsection (1) may interfere with the working of the ship, a lower height may be approved, provided the Board is satisfied that the closing arrangements and other circumstances justify a lower height.

(3) Satisfactory means, permanently attached, shall be provided for closing the openings of the air pipes referred to in subsection (1).

Ventilators

10. (1) Ventilators in Position 1 or 2 to spaces below freeboard decks, decks of enclosed superstructures or trunk decks shall have coamings of steel or other equivalent material substantially constructed and efficiently connected to the deck.

(2) Subject to subsection (3), the height above the deck of the coamings required by subsection (1) shall be at least 760 mm if in Position 1 and at least 610 mm if in Position 2.

(3) In exposed positions, other than Positions 1 and 2, the height of ventilator coamings shall be to the satisfaction of the Assigning Authority.

(4) Where the coaming of any ventilator that is in an exposed position exceeds 915 mm in height above the deck, it shall be specially supported.

(5) Ventilators passing through superstructures other than enclosed superstructures shall have substantially constructed coamings of steel or other equivalent material at the freeboard deck.

(6) Subject to subsection (7), ventilator openings shall be provided with efficient weathertight closing appliances that are permanently attached to or, where permitted by the Board, conveniently stowed near the ventilators to which they are to be fitted.

(7) Ventilators in Position 1, the coamings of which extend to more than 3.81 m above the deck and in Position 2, the coamings of which extend to more than 1.83 m above the deck, need not be fitted with closing arrangements unless specifically required by the Board.

Side Scuttles

11. (1) Side scuttles to spaces below the freeboard deck or to spaces within enclosed superstructures shall be fitted with efficient hinged inside deadlights arranged so that they can be effectively closed and secured watertight.

(2) No side scuttle shall be fitted in a position so that its sill is below a line drawn parallel to the freeboard deck at side and having its lowest point 2.5 per cent of the breadth (B) above the summer fresh water load water line or 510 mm, whichever is the greater distance.

(3) The side scuttles and deadlights shall be of substantial construction to the satisfaction of the Board.

Miscellaneous Openings in Freeboard,
Superstructure and Trunk Decks

12. (1) Manholes and flush scuttles in Position 1 or 2 or within a superstructure other than an enclosed superstructure shall be closed by substantial covers capable of being made watertight and, unless secured by closely spaced bolts, the covers shall be permanently attached.

(2) Openings in freeboard decks other than hatchways, machinery space openings, manholes and flush scuttles shall be protected by an enclosed superstructure or by a deckhouse or companionway of equivalent strength and weathertightness.

(3) Any opening described in subsection (2) in an exposed superstructure deck or in the top of a deckhouse on the freeboard deck that gives access to a space below the freeboard deck or a space within an enclosed superstructure shall be protected by an efficient deckhouse or companionway.

(4) Doorways in deckhouses or companionways described in subsections (2) and (3) shall be fitted with doors complying with the requirements of section 4 of this Part.

Freeing Ports

13. (1) Where bulwarks in exposed positions on freeboard or superstructure decks form wells, ample provision shall be made for rapidly freeing the decks of water and for draining them.

(2) Subject to subsections (4) to (7), where the sheer in way of the well is standard or greater than standard, the minimum freeing port area on each side of the ship shall be

(a) "A" for each well on the freeboard deck and on the raised quarter deck, and

(b) one-half of "A" for each well on superstructure decks other than raised quarter decks,

the value of "A" being given by the following formulas:

Where the length of bulwark (U) in the well is 20 m or less,

"A" = 0.706 + 0.0351 square metres.

Where the length of bulwark () in the well exceeds 20 m

"A" = 0.0701 square metres.

( need in no case be taken as greater than 0.7 L.)

(3) For the purposes of the freeing port area only, bulwark height shall be considered standard at 610 mm for ships 73.2 m in length or less and 1 220 mm for ships 146.3 m in length or greater and the standard bulwark height for ships of intermediate length shall be obtained by linear interpolation.

(4) If the height of the bulwark exceeds standard height, the minimum freeing port area shall be "A" plus 0.04 m2 per metre of length of well for each metre by which the height of bulwark exceeds standard height.

(5) Where, in ships greater than 146.3 m in length the average height of the bulwark is less than 915 mm, the minimum freeing port area may be decreased by 0.04 m2 per metre of length for each metre by which the average height of the bulwark is less than 915 mm.

(6) In ships with no sheer the area calculated according to subsections (2) to (5) shall be increased by 50 per cent and, where the sheer is less than the standard, the percentage of increase shall be obtained by linear interpolation.

(7) Where a ship is fitted with a trunk but does not comply with the requirements of paragraph (e) in the definition of "efficient trunk" or where continuous or substantially continuous hatchway side coamings are fitted between detached superstructures, the minimum area of the freeing port openings shall be calculated from the following table:

Breadth of hatchway or trunk in relation to the breadth of ship  Area of freeing ports in relation to the total area of the bulwarks
40 per cent or less
75 per cent or more
20 per cent
10 per cent

 

The area of freeing ports at intermediate breadths shall be obtained by linear interpolation.

(8) In ships having erections that are open at either or both ends, adequate provision for freeing the space within such erections shall be provided to the satisfaction of the Assigning Authority.

(9) The lower edges of the freeing ports shall be as near the deck as practicable and 2/3 of the freeing area required shall be provided in the half of the well nearest the lowest point of the sheer curve.

(10) All freeing port openings in the bulwarks shall be protected by rails or bars spaced approximately 230 mm apart.

(11) If shutters are fitted to freeing ports, ample clearance shall be provided to prevent jamming.

(12) If shutters are fitted with securing appliances, the appliances shall be of approved construction.

(13) Hinges for shutters shall have pins or bearings of non-corrodible material.

Scuppers, Drains, Inlets and Discharges

14. (1) Every discharge led through the shell from spaces below the freeboard deck shall have

(a) an automatic non-return valve fitted at the shell with a positive means of closing operable

(i) from above the freeboard deck, or

(ii) from a readily accessible location, if the discharge originates in a space that is either manned or provided with continuous bilge water monitoring; or

(b) two automatic non-return valves, one of which shall be fitted at the shell and the inboard one of which shall always be accessible for examination under service conditions.

(2) Every discharge led through the shell from within an enclosed superstructure, or from within a deckhouse on the freeboard deck that is fitted with doors complying with section 4 of this Part shall

(a) comply with the requirements of subsection (1); or

(b) have an automatic non-return valve fitted at the shell, if the discharge originates in a space that is regularly visited by the crew.

(3) Except as provided in subsection (4), every scupper, drain and discharge originating at any level and led through the shell below a line that is either 0.05B or 610 mm, whichever is greater, above the summer fresh water load line shall have an automatic non-return valve fitted at the shell.

(4) The requirements of subsection (3) do not apply

(a) where valves are fitted in compliance with the requirements of subsection (1) or (2); or

(b) where the piping of the scupper, drain or discharge is of substantial thickness.

(5) Every scupper leading from a superstructure other than an enclosed superstructure or from a deckhouse not fitted with doors complying with the requirements of section 4 of this Part shall be led overboard.

(6) In machinery spaces and other readily accessible spaces every main and auxiliary sea inlet and discharge in connection with the operation of machinery shall have a valve with positive means of closing operable from a readily accessible location.

(7) Indicators showing whether the valve is open or closed shall be provided at the operating position of each valve, which is required by this section to have positive means of closing.

(8) All shell fittings and the valves required by this section shall be of steel, bronze or other approved ductile material; valves of ordinary cast iron or similar material are not acceptable.

(9) All pipes to which this section refers shall be of steel or other equivalent material to the satisfaction of the Board.

Protection of the Crew

15. (1) The strength of the deckhouses used for the accommodation of the crew shall be to the satisfaction of the Board.

(2) Efficient guard-rails or bulwarks shall be fitted on all exposed parts of the freeboard and superstructure decks.

(3) In the case of ships with rounded gunwales the guard-rail supports shall be placed on the flat of the deck.

(4) The height of the bulwarks or guard-rails referred to in subsection (2) shall be at least 915 mm from the deck, provided that where this height would interfere with the normal operation or adversely influence the safety of a ship, a lesser height may be approved if the Board is satisfied that the crew is adequately protected, and the bulwarks and guard-rails shall meet the following requirements:

(a) guard-rails shall be fitted with at least three courses;

(b) the opening between the lowest course of the guard-rails and the deck shall not exceed 230 mm and other courses shall not be spaced more than 380 mm apart; and

(c) in cases where the sheer strake projection is at least 205 mm above the deck, two courses of rails may be fitted in lieu of three if the Board is satisfied that an equivalent degree of protection is provided.

(5) Life lines, gangways, underdeck passages or other similar means shall be provided for the protection of the crew in getting to and from their quarters, the machinery space and all other parts used in the essential operation of the ship.

PART II

CALCULATION OF FREEBOARDS

Formulas

16. (1) In this Part,

"effective length of superstructure or trunk (E)" means, in metres,

(a) S, in the case of an enclosed superstructure, other than a raised quarter deck, with a height equal to or greater than Hs,

(b) S x (height/Hs), in the case of an enclosed superstructure, other than a raised quarter deck, with a height less than Hs,

(c) S or 0.6 L, whichever is lesser, in the case of an enclosed superstructure that is a raised quarter deck with a height equal to or greater than 2/3 Hs and having an intact front bulkhead,

(d) S x (height/Hs), in the case of an enclosed superstructure that is a raised quarter deck with a height less than 2/3 Hs,

(d.1) S or 0.6 L, whichever is lesser, in the case of an enclosed superstructure that is a raised quarter deck with a height equal to or greater than 2/3 Hs and does not have an intact front bulkhead,

(e) length x (mean breadth/B), in the case of a trunk with a height equal to or greater than Hs, and

(f) length x (mean breadth/B) (height/Hs) in the case of a trunk with a height less than Hs;

"Lw" means L or 121.9 m, whichever is the greater;

"standard height of superstructure or trunk (Hs)" means, in metres, 1.83 + L/300.

(2) For the purpose of the calculations in this Part, all length and height measurements shall be in metres and shall be taken to three places of decimals.

Minimum Fresh Water Freeboards

17. (1) A Type A ship shall be assigned a summer freeboard, applicable during the summer seasons in fresh water, that is not less than the basic freeboard calculated in accordance with paragraph 19(1)(a) of this Schedule and modified where appropriate in accordance with sections 21 to 24 of this Schedule.

(2) A Type B ship shall be assigned a summer freeboard, applicable during the summer seasons in fresh water, that is not less than the basic freeboard calculated in accordance with paragraph 19(1)(b) of this Schedule and modified where appropriate in accordance with sections 20 to 24 of this Schedule.

(3) A ship shall be assigned a midsummer freeboard, applicable during the midsummer season in fresh water, that is not less than the summer freeboard for that ship, calculated in accordance with this section, minus the distance in millimetres obtained by multiplying 25 by the summer draught in metres.

(4) A ship shall be assigned an intermediate freeboard, applicable during the intermediate seasons in fresh water, that is not less than the summer freeboard for that ship, calculated in accordance with this section, plus the distance in millimetres obtained by multiplying 2540/Lw by the summer draught in metres.

(5) A ship shall be assigned a winter freeboard, applicable during the winter season in fresh water, that is not less than the summer freeboard for that ship, calculated in accordance with this section, plus the distance in millimetres obtained by multiplying 5080/Lw by the summer draught in metres.

Minimum Salt Water Freeboards

18. (1) Every ship that may load in salt water shall be assigned freeboards, applicable during each season in salt water, calculated by adding the quantity D/4.1 T millimetres to the corresponding fresh water freeboards, where D is the displacement in fresh water in tonnes, at the summer fresh water load water line, and T is the additional displacement in tonnes per centimetre immersion in fresh water at the summer fresh water load water line.

(2) Where the displacement at the summer fresh water load water line cannot be certified, the addition in millimetres to each of the minimum fresh water freeboards shall be one forty-eighth of the summer draught.

Basic Freeboards

19. (1) The basic freeboard in millimetres for

(a) a Type A ship, is 850 x p1 x D, and

(b) a Type B ship, is 1000 x p1 x D,

where p1 = p + A (L/D - L/Ds),

p = a factor that is a function of L as determined

from Table I to this section,

L/Ds = the ratio of L to standard depth (Ds), as

determined from Table II to this section, and

A = a coefficient that is a function of L as

determined from Table III to this section.

(2) In no case is D to be taken as less than that which will give a ratio of L to D that is

(a) more than 15 when L = 121.9 m or less, or

(b) more than 21 when L = 213.4 m or more, with the ratio for intermediate length being calculated proportionately.

TABLE I--TABLEAU I

*Values of r          

        *Valeurs de r 
Length of Ship (metres)
------- Longueur du navire (mètres) 
*Value of r
-------
*Valeur de r
Length of Ship (metres)
------- Longueur du navire  (mètres)
Value of r
------- Valeur de  r
Length of Ship (metres)
------- Longueur du navire (mètres)
Value of r
------- Valeur de r
Length of Ship (metres)
------- Longueur du navire (mètres)
Value of r
------- Valeur de r
24.4 0.1100 94.5 0.1982 164.6  0.2738 234.7 0.2628
27.4  0.1136 97.5 0.2023 167.6 0.2751 237.7 0.2607
30.5 0.1172 100.6  0.2065 170.7 0.2762 240.8 0.2584
33.5 0.1208  103.6 0.2106 173.7 0.2772 243.8 0.2560
36.6 0.1244 106.7 0.2148 176.8  0.2779 246.9 0.2532
39.6 0.1281 109.7 0.2190 179.8  0.2785 249.9 0.2504
42.7 0.1318 112.8 0.2233 182.9  0.2788 253.0 0.2476
45.7 0.1355  115.8 0.2275 185.9 0.2790 256.0 0.2448
48.8 0.1393 118.9 0.2318 189.0  0.2790 259.1 0.2420
51.8  0.1430 121.9 0.2361 192.0 0.2789 262.1 0.2392
54.9 0.1468 125.0 0.2400 195.1  0.2785 265.2 0.2364
57.9 0.1506 128.0 0.2437 198.1  0.2779 268.2 0.2336
61.0 0.1545 131.1 0.2472 201.2  0.2772 271.3 0.2308
64.0 0.1583 134.1 0.2506 204.2 0.2768 274.3 0.2280
67.1 0.1622 137.2 0.2537 207.3 0.2760 277.4 0.2252
70.1 0.1661 140.2 0.2567 210.3  0.2751 280.4 0.2224
73.2 0.1700 143.3 0.2595 213.4  0.2740 283.5 0.2196
76.2 0.1740 146.3 0.2621 216.4 0.2728 286.5 0.2168
79.2 0.1780  149.4 0.2645 219.5 0.2715 289.6 0.2140
82.3  0.1820 152.4 0.2667 222.5 0.2700 292.6 0.2112
85.3 0.1860 155.4  0.2688 225.6 0.2684 295.7 0.2084
88.4 0.1900 158.5 0.2706 228.6  0.2667 298.7 0.2056
91.4 0.1941 161.5 0.2723 231.6  0.2648 301.8 0.2028
304.8 0.2000

  * For intermediate values of L, the value of r is to be obtained by linear interpolation.

* Les valeurs de r qui correspondent aux valeurs intermédiaires de L, s'obtiennent par interpolation linéaire.

 

TABLE II--TABLEAU II

*Values of L/Ds       

       *Valeurs de L/Ds
Length of Ship (metres)
------- Longueur du navire (mètres)
Value of L/Ds
------- Valeur de L/Ds
Length of Ship (metres)
------- Longueur du navire (mètres)
Value of L/Ds
------- Valeur de L/Ds
Length of Ship (metres)
------- Longueur du navire (mètres)
Value of L/Ds
-------  Valeur de L/Ds
Length of Ship (metres)
------- Longueur du navire (mètres)
Value of L/Ds
-------
Valeur de L/Ds
24.4 6.50000 45.7 8.35938 67.1  10.21875 88.4 12.07813
27.4 6.76563 48.8 8.62500 70.1 10.48438  91.4 12.34375
30.5 7.03125 51.8 8.89063  73.2 10.75000 94.5 12.60938
33.5 7.29688 54.9 9.19625 76.2 11.01563 97.5  12.87500
36.6 7.56250 57.9 9.42188 79.2 11.28125 100.6  13.14063
39.6 7.82813 61.0 9.68750 82.3 11.54688 103.6 13.40625
42.7 8.09375 64.0 9.95313  85.3 11.81250 106.7 13.67188

* For intermediate values of L, the value of L/Ds is to be obtained by linear interpolation.

* Les valeurs de L/Ds qui correspondent aux valeurs intermédiaires de L, s'obtiennent par interpolation linéaire.

 

TABLE III--TABLEAU III

*Values of "A"       

         *Valeurs de «A»
Length of Ship (metres) ------- Longueur du navire (mètres) Value of  "A"
------- Valeur de «A»
Length of Ship (metres) ------- Longueur du navire   (mètres) Value of  "A"
-------  Valeur de «A»
Length of Ship (metres) ------- Longueur du navire (mètres)  Value of  "A" ------- Valeur de «A» Length of Ship (metres)  ------- Longueur du navire (mètres) Value of  "A"
-------
Valeur de «A»

24.4

0.00864 45.7 0.00500 67.1  0.00234 88.4 0.00066
27.4 0.00806 48.8 0.00456 70.1 0.00204 91.4 0.00050
30.5 0.00750 51.8 0.00414 73.2  0.00176 94.5 0.00036
33.5 0.00696 54.9 0.00374 76.2  0.00150 97.5 0.00024
36.6 0.00644 57.9 0.00336 79.2 0.00126 100.6 0.00014
39.6 0.00594 61.0 0.00300 82.3 0.00104 103.6 0.00006
42.7 0.00546 64.0 0.00266 85.3 0.00084 106.7 or 0.00000
           

greater ou plus

 

  * For intermediate values of L, the value of "A" is to be obtained by linear interpolation.

* Les valeurs de «A» qui correspondent aux valeurs intermédiaires de L, s'obtiennent par interpolation linéaire.

Correction for Type B Ships

20. The basic freeboard for a Type B ship of less than 152.4 mm in length, having enclosed superstructures with an effective length (E) of up to 25 per cent of the length (L) of the ship, shall be increased by 2.5 (152.4-L) (0.25-E/L), expressed in millimetres.

Correction for Superstructures and Trunks

21. (1) Where the sum of the effective lengths (E) of the enclosed superstructure equals 1.0 L, the basic freeboard shall be reduced by Hs x 500 expressed in millimetres.

(2) Where the sum of the effective lengths (E) of enclosed superstructures and the effective lengths (E) of efficient trunks is less than 1.0 L, the basic freeboard shall be reduced by (E/2 L) (1 + E/L) (Hs x 500) expressed in millimetres.

Correction for Sheer

22. (1) Subject to subsections (4) to (7), the sheer profile of a ship is the line of the freeboard deck at side.

(2) Subject to subsection (3), the sheer of a ship shall be measured from the deck at side to a line of reference drawn parallel to

(a) the keel through the sheer line at amidship; or

(b) in a ship designed with a rake of keel, the design load waterline.

(3) In a ship with a step or break in the topsides, the line of reference shall be drawn through the point amidships that represents the upper point of the mean depth of the ship.

(4) Subject to subsection (5), in a ship with an enclosed superstructure of at least standard height (Hs) that extends over the whole length of the freeboard deck, the sheer profile is the line of the superstructure deck at side.

(5) Where the height of the superstructure referred to in subsection (4) exceeds Hs, the sheer of the ship at

(a) the after and the forward perpendiculars shall be deemed to be increased by Z, being the least difference between Hs and the height of the superstructure,

(b) 1/6 L from each perpendicular shall be deemed to be increased by 0.444 Z, and

(c) 1/3 L from each perpendicular shall be deemed to be increased by 0.111 Z,

and the sheer profile shall be deemed to be correspondingly altered.

(6) Where the deck of an enclosed superstructure has at least the same sheer as the exposed freeboard deck, the sheer of the enclosed portion of the freeboard deck shall not be taken into account.

(7) Where an enclosed poop or forecastle is of standard height (Hs) and has greater sheer than that of the freeboard deck, or where the height of an enclosed poop or forecastle exceeds Hs, the sheer of the ship shall be deemed to be increased by the amount obtained from the following formula and the sheer profile shall be deemed to be correspondingly altered:

where y = the difference between Hs and the height of the

poop or forecastle at either perpendicular; and

L' = the mean length of the poop or forecastle or 0.5L,

whichever is lesser.

(8) The ordinates of the standard sheer profile for a station described in Column I of an item of the table to this section are set out in Column II of that item.

(9) Where the sheer profile of a ship differs from the standard sheer profile,

(a) the excess or deficiency of sheer in each half of the ship is calculated as follows:

(i) the ordinates of the sheer profile for each station described in Column I of an item of the table to this section shall be multiplied by the factor set out in Column III of that item and the sum of the four products for each half of the ship shall be calculated,

(ii) the ordinates of the standard sheer profile for each station described in Column I of an item of the table to this section shall be multiplied by the factor set out in Column III of that item and the sum of the four products for each half of the ship shall be calculated.

(iii) the sum described in subparagraph (ii) for the forward half of the ship shall be subtracted from the sum described in subparagraph (i) for the forward half of the ship,

(iv) the sum described in subparagraph (ii) for the after half of the ship shall be subtracted from the sum described in subparagraph (i) for the after half of the ship,

(v) the excess of sheer in each half of the ship is the positive figure, divided by eight, calculated for that half pursuant to subparagraph (iii) or (iv), as the case may be, and

(vi) the deficiency of sheer in each half of the ship is the negative figure, divided by eight, calculated for that half pursuant to subparagraph (iii) or (iv), as the case may be; and

(b) subject to subsections (10) and (11), the excess or deficiency of sheer for the ship is the positive or negative arithmetical mean, whichever is appropriate, of the excess or deficiency in both halves of the ship.

(10) Where the sheer in the after half of a ship exceeds the standard and the sheer in the forward half is less than the standard, no credit shall be given for the excess of sheer and the deficiency of sheer only shall be measured.

(11) Where the sheer in the forward half of a ship exceeds the standard,

(a) credit shall be given for the excess, if the sheer in the after half is not less than 75 per cent of the standard;

(b) no credit shall be given for the excess, if the sheer in the after half is less than 50 per cent of the standard; and

(c) intermediate credit shall be given for the excess, if the sheer in the after half is between 50 per cent and 75 per cent of the standard.

Corrections for Variations from Standard Sheer

(12) The correction for sheer in a ship shall be the excess or deficiency of sheer referred to in subsections (9) to (11) multiplied by

where S is the total length of enclosed superstructures.

TABLE

 

Addition for Deficiency of Sheer

(13) Where the sheer of a ship is less than the standard, the correction for deficiency of sheer, calculated in accordance with subsection (12), shall be added to the freeboard.

Deduction for Excess of Sheer

(14) Where the sheer of a ship exceeds the standard, the deduction from freeboard shall be as follows:

(a) where an enclosed superstructure covers 0.1 L before and 0.1 L abaft amidships, the deduction shall be equal to the correction for excess of sheer, calculated in accordance with subsection (12);

(b) where no enclosed superstructure covers amidships, no deduction shall be made; and

(c) where an enclosed superstructure covers less than 0.1 L before and 0.1 L abaft amidships, the deduction shall be calculated by linear interpolation.

(15) No reduction of the basic freeboard, pursuant to subsection (14), that exceeds 125 mm per 100 m of length (L) shall be made.

Correction for Bow Height

23. (1) Subject to subsections (2) and (3), where a ship's bow height, being the vertical distance at the forward perpendicular between

(a) the water line corresponding to the basic freeboard, as corrected in accordance with sections 20 to 22 of this Part, and the designed trim, and

(b) the top of the exposed deck at side,

is less than

(c) 49.417 L (1-L/500) millimetres, in the case of a ship of less than 167.6 m in length, or

(d) 8677-18.917 L millimetres, in the case of a ship of 167.6 m or more in length,

the basic freeboard shall be increased by the difference between the ship's bow height and the bow height described in paragraphs (c) and (d).

(2) Where the ship's bow height includes sheer and that sheer does not extend for at least 15 per cent of the length of the ship measured from the forward perpendicular, the ship's bow height shall be deemed to be its actual bow height minus the amount of that sheer.

(3) Where the ship's bow height includes the height of a superstructure and that superstructure

(a) does not extend from the stem to a point at least 0.06 L abaft the forward perpendicular,

(b) in the case of a ship not over 152.4 m in length, is not an enclosed superstructure, and

(c) in the case of a ship of over 152.4 m in length, is not fitted with closing appliances to the satisfaction of the Assigning Authority,

the ship's bow height shall be deemed to be its actual bow height minus the height of that superstructure.

Correction for Deck Line

24. (1) Where the actual depth, measured from the same point as for moulded depth to the point where the upper edge of the deck line is to be placed, is greater than D, the difference between the two depths shall be added to the basic freeboard.

(2) Where the actual depth, measured from the same point as for moulded depth to the point where the upper edge of the deck line is to be placed, is less than D, the difference between the two depths shall be deducted from the basic freeboard.

PART III

LOAD LINE MARKS

Deck Line

25. (1) A horizontal line, hereinafter referred to as the "deck line", that is 300 mm in length and 25 mm in breadth shall be marked amidships on the outer surface of the shell on each side of the ship.

(2) The upper edge of the deck line shall normally pass through the point where the continuation outwards of the upper surface of the freeboard deck intersects the outer surface of the shell, as illustrated in Figure 1.

(3) The deck line may be placed with reference to another fixed point on the ship if the freeboard is correspondingly corrected in accordance with section 24 of Part II of this Schedule.

Load Line Diamond

26. (1) A right angled diamond, hereinafter referred to as "the diamond", as illustrated in Figure 2, shall be marked amidships below the deck line on each side of the ship.

(2) The diamond shall be outlined with lines 25 mm in breadth and the diagonal measurement of the diamond shall be 380 mm.

(3) The diamond shall be intersected by a horizontal line measuring 540 mm in length and 25 mm in breadth, the midpoint of the upper edge of which coincides with the midpoint of the diamond.

(4) The diamond shall be placed so that its centre point is at a distance below the upper edge of the deck line equal to

(a) the assigned summer freeboard for fresh water calculated in accordance with Part II of this Schedule; or

(b) where applicable, the summer freeboard for fresh water assigned in accordance with subsection 11(2) of these Regulations.

Load Lines

27. (1) Horizontal lines to be known as fresh water load lines, indicating the assigned fresh water freeboards, shall be marked as illustrated in Figure 2, each line measuring 230 mm in length and 25 mm in breadth and extending forward of and at right angles to a vertical line measuring 25 mm in breadth.

(2) The vertical line referred to in subsection (1) shall be marked 660 mm forward of the vertical diagonal of the load line diamond.

(3) A load line, to be known as the midsummer fresh water load line, shall be placed so that its upper edge marks the assigned midsummer fresh water freeboard and the letters "MS" shall be marked forward of this line.

(4) A load line, to be known as the summer fresh water load line, shall be placed so that its upper edge marks the assigned summer fresh water freeboard and the letter "S" shall be marked forward of this line.

(5) A load line, to be known as the intermediate fresh water load line, shall be placed so that its upper edge marks the assigned intermediate fresh water freeboard and the letter "I" shall be marked forward of this line.

(6) A load line, to be known as the winter fresh water load line, shall be placed so that its upper edge marks the assigned winter fresh water freeboard and the letter "W" shall be marked forward of this line.

(7) Where a ship has been assigned salt water freeboards, horizontal lines known as salt water load lines shall be also marked as illustrated in Figure 2, each line measuring 230 mm in length and 25 mm in breadth, extending abaft the vertical line, placed so that their upper edges mark the appropriate assigned salt water freeboards and marked with letters in the same fashion as for the fresh water load lines but placed abaft these salt water load lines.

(8) Where salt water load lines are marked, the letters "SW" shall be marked above these lines and the letters "FW" shall be marked above the fresh water load lines.

(9) Notwithstanding any other provision of this section, where the characteristics of the ship or the nature of the ship's service or navigational limits make any of the load lines inapplicable, these lines may be omitted.

(10) Notwithstanding any other provision of this Part, where a ship has been assigned a freeboard in accordance with subsection 11(2) of these Regulations, the ship shall be marked as follows:

(a) a load line shall be placed so that its upper edge marks that freeboard;

(b) no load line marking any freeboard that is less than the freeboard referred to in paragraph (a) shall be marked; and

(c) the letter, designating the season during which the freeboard equal to or next smaller in size to the freeboard referred to in paragraph (a) would have applied, shall be marked beside the load line marked in accordance with this subsection.

Mark of Assigning Authority

28. (1) The mark of the Authority by whom the freeboards are assigned shall be indicated alongside the load line diamond above the horizontal line that passes through the centre of the diamond.

(2) The mark referred to in subsection (1) shall consist of not more than two letters to identify the Authority's name, each letter measuring 115 mm in height and 75 mm in breadth.

Details of Marking

29. (1) All load line marks shall be painted in white or yellow on a dark ground or in black on a light ground.

(2) The marks referred to in subsection (1) shall be permanently marked on the sides of the ship to the satisfaction of the Assigning Authority.

(3) The marks referred to in subsection (1) shall be plainly visible and, if necessary, special arrangements shall be made for this purpose.

SCHEDULE II

(s.12)

GREAT LAKES AND INLAND WATERS OF CANADA LOAD LINE
CERTIFICATE

Form L.L. 3A

Reg. No.

Issued under the provisions of the Canada Shipping Act by (Here follows either "the Chairman of the Board of Steamship Inspection" or, in a case where the assigning Authority is not the Chairman, the name of the Assigning Authority)

OFFICIAL PORT OF LENGTH(L) GROSS

NAME OF SHIP NUMBER REGISTRY (metres) TONNAGE

Subject to any limitations endorsed hereon, this certificate is valid for voyages on the inland waters of Canada and for inland voyages.

Type of Ship (where applicable) *

Fresh Water Freeboard from

Deck Line* Fresh Water Load Line**

Midsummer mm (MS) mm above (S)

Summer mm (S) Upper edge of line through

centre of diamond

Intermediate mm (I) mm below (S)

Winter mm (W) mm below (S)

Increase for salt water for all freeboards mm.

The upper edge of the deck line from which these freeboards.

are measured is mm deck at side.

Date of survey

This is to certify that this ship has been surveyed and that the conditions of assignment have been complied with, freeboards have been assigned and the load line marks shown above have been marked in accordance with the ***

This certificate is valid until ,
subject to periodical inspection in accordance with the relevant provisions of the
*** Issued at , on the
day of 19 .

(Here follows the seal of the Minister and marking to show that the certificate has been registered by the Chairman or, in a case where the Assigning Authority is not the Chairman, the signature of the person competent to sign certificates for the Assigning Authority.)

This is to certify that at a periodical inspection required by the
***

this ship was found to comply with the relevant provisions thereof.

Place Date

Signature of Surveyor Assigning Authority

Place Date

Signature of Surveyor Assigning Authority

Place Date

Signature of Surveyor Assigning Authority

Place Date

Signature of Surveyor Assigning Authority

Limitations:

Note: Attention is drawn to the legislative requirement that this certificate be framed and posted up in some conspicuous place on board the ship, and be kept so framed and posted for as long as the certificate is in force and the ship is in use.

* Insert the words: "Type A" or "Type B", as appropriate.

** Freeboards and load lines that do not apply to the ship

need not be entered.

*** Insert the words: "Load Line Regulations (Inland)" or "Load Line Rules for Lakes and Rivers", as appropriate.

SCHEDULE III

(s.12)

GREAT LAKES AND INLAND WATERS OF CANADA LOAD LINE
CERTIFICATE (TEMPORARY)

Form L.L. 3A(T)

Reg. No.

Issued under the provisions of the Canada Shipping Act

OFFICIAL PORT OF LENGTH(L)

NAME OF SHIP NUMBER REGISTRY (metres)

Subject to any limitations endorsed hereon, this certificate is valid for voyages on the inland waters of Canada and for inland voyages.

Type of Ship *

Fresh Water Freeboard from

Deck Line* Fresh Water Load Line**

Midsummer mm (MS) mm above (S)

Summer mm (S) Upper edge of line through

centre of diamond

Intermediate mm (I) mm below (S)

Winter mm (W) mm below (S)

Increase for salt water for all freeboards mm.

The upper edge of the deck line from which these freeboards.

are measured is mm deck at side.

Date of Survey

This is to certify that this ship has been surveyed and that the conditions of assignment have been complied with, freeboards have been assigned and the load line marks shown above have been marked in accordance with the Load Line Regulations (Inland).

This certificate is valid until (in no case to be later than three months from the date of survey), or until the date of issue of a Great Lakes and Inland Waters of Canada Load Line Certificate (Form L.L. 3A), whichever is the earlier date.

Issued, with the approval of (Here follows either "The Chairman of the Board of Steamship Inspection" or, in a case where the Assigning Authority is not the Chairman, the

name of the Assigning Authority), at on

the day of 19

Signature of Surveyor

Limitations:


Note: Attention is drawn to the regulations that require this certificate to be framed and posted up in some conspicuous place on board the ship, and kept so framed, and posted for as long as the certificate is in force and the ship is in use.

* Insert the words: "Type A", or "Type B", as appropriate.

** Freeboards and load lines that do not apply to the ship

need not be entered.

Established by the CONSOLIDATED REGULATIONS OF CANADA, 1978.

amended by

SOR/78-79 24 January, 1978 pursuant to section 436 of the Canada Shipping Act

Section 11 by adding subsection (4).

SOR/78-155 20 February, 1978 pursuant to section 436 of the Canada Shipping Act

The definition "standard height of superstructure or trunk (Hs)" in subsection 16(1) of Schedule I; and subsection 16(2) of Schedule I.

SOR/80-250 3 April, 1980 pursuant to section 436 of the Canada Shipping Act

Subsection 12(1) of Schedule I; paragraph (d) of the definition "effective length of superstructure or trunk (E)" in subsection 16(1) of Schedule I; Table I to section 19 of Schedule I; section 21 of Schedule I; subsection 22(2) of Schedule I; and paragraph 23(1)(d) of Schedule I.


Last updated: 2005-03-08 Top of Page Important Notices