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PART III
CLOSING OF OPENINGS IN HULLS AND WATERTIGHT BULKHEADSBELOW THE BULKHEAD DECK
Interpretations
15.
In this Part "a closing appliance" shall be deemed to be below the margin line if the sill of the opening with which it is associated is below that line.
Closure of hull openings and openings in watertight bulkheads
16.
- (1) The following closing appliances are to be securely closed before the ship proceeds on any voyage and are to be kept so closed until the ship has been secured at a berth or anchorage -
(2) No closing appliance described in paragraph (1) shall be considered as being securely closed unless it is locked.
(3) Every portable plate closing an opening below the bulkhead deck in any portion of the internal structure of the ship which is required to be watertight shall be fitted in place before the ship proceeds on any voyage and shall be kept in place, except in case of urgent necessity, until the ship has been secured at a berth or anchorage. In replacing any such plate all reasonable precautions shall be taken to ensure that the joints are watertight.
(4) Both the watertight cover and the automatic non-return valve of any overboard discharge having its inboard opening below the margin line shall be kept closed and secured when such device is not in use.
Marking of valves, doors and mechanisms
17.
All doors, valves and mechanisms connected with the damage control and watertight integrity of the ship shall be suitably marked to ensure that they may be properly used to provide maximum safety.
Drills and inspections
18.
- (1) All deadlights which are accessible, all watertight doors, all valves and closing mechanisms of scuppers and the devices referred to in regulation 16(4) shall be opened and closed for purposes of drill -
(a) at intervals of not more than seven days; and
(b) immediately before the ship proceeds to sea if the ship is intended to remain at sea for a period of more than seven days.
(2) All closing appliances and devices referred to in regulation 16(1) and (4) shall be inspected by a person appointed by the master for that purpose before the ship proceeds on any voyage.
(3) The following closing appliances and mechanisms are to be inspected at intervals of not more than seven days by a person appointed for that purpose either generally or on any particular occasion by the master -
(a) all valves, the closing of which is necessary to make watertight any compartment below the margin line; and
(b) all valves, the operation of which is necessary for the efficient operation of damage-control cross-connections.
Notices
19.
Suitable notices and signs shall be provided on, or in the vicinity of, all the closing appliances referred to in regulation 16 to indicate, as necessary, the procedures for operating the appliances, the purpose of the controls and any precautions to be observed.
Entries to be recorded
20.
Entries shall be made in a book retained on board to record the following -
(1) the times of the last closing, before the ship proceeds on any voyage, of the closing appliances referred to in regulation 16(1) and of the next opening of such closing appliances;
(2) the times when the portable plates referred to in regulation 16(3) are fitted in place and the times of any removal and replacement of such plates whilst the ship is on any voyage; and
(3) the occasions on which drills are held and inspections made in compliance with these Regulations and whether or not the closing appliances and devices to which any such drill or inspection relates are in good working order when the drill or inspection takes place.
PART IV
CLOSING OF OPENINGS IN ENCLOSED SUPERSTRUCTURES AND IN BULKHEADS ABOVE THE BULKHEAD DECK
Application and interpretation
21.
- (1) This Part applies to -
(a) United Kingdom ro-ro passenger ships; and
(b) non-United Kingdom ro-ro passenger ships with the exception of -
(i) regulation 24(2) and (3);
(ii) regulation 26(2) to the extent that it relates to regulation 24(2);
(iii) regulation 27(1) and (2) to the extent that it relates to any berth which is not situated within a port in the United Kingdom; and
(iv) regulation 28(2).
(2) In this Part the following expressions have the following meanings -
"doors" includes bow visors and appliances described in regulation 22(1)(c);
"length" means the ship's overall length; and
"loading doors" means the doors described in regulation 22(1)(a) to (d) inclusive.
(3) A door shall be deemed to be above the bulkhead deck if the sill of the opening with which it is associated is above that deck.
Closure of main loading doors
22.
- (1) Except in the cases specified in paragraphs (2) and (4) the following loading doors -
(a) gangway and cargo loading doors fitted in the shell or boundaries or enclosed superstructures;
(b) bow visors so fitted;
(c) weathertight ramps so fitted and used instead of doors for closing openings for cargo or vehicle loading; and
(d) cargo loading doors in the collision bulkhead;
shall be closed and locked before the ship leaves its berth and shall be kept closed and locked until the ship has been secured at its next berth.
(2) Where a bow visor or a weathertight ramp cannot be opened or closed while the ship is secured at its berth, it may so far as necessary and subject to paragraph (3) be opened or kept open while the ship approaches or draws away from its berth, as the case may be.
(3) In no case shall a loading door be open when the ship is more than one ship's length from the cargo loading or discharging position of its berth.
(4) Paragraph (1) shall not apply to small doors intended to be used for pilot access, fuelling or other matters necessary for the operation of the ship and not intended to be used by passengers or for loading cargo.
Supervision and reporting of closure
23.
- (1) Before the ship proceeds on a voyage an officer appointed for the purpose by the master shall -
(a) verify that every loading door has been closed and locked; and
(b) report the fact that they have been closed and locked to the master or other officer in charge of the bridge.
(2) Save as permitted by regulation 22(2) the ship shall not proceed on a voyage until the report referred to in sub-paragraph (1)(b) has been received by the master or other officer in charge of the bridge.
Closure of weathertight doors in bulkheads
24.
- (1) Weathertight doors above the bulkhead deck (except doors fitted in collision bulkheads to which regulation 22 applies) which are fitted in bulkheads which are required to be watertight or weathertight as the case may be and which separate or form the boundary of cargo spaces shall be closed and locked before the ship leaves its berth and be kept closed and locked until the ship has been secured at its next berth.
(2) Weathertight doors above the bulkhead deck fitted in the shell or in bulkheads which are required to be watertight or weathertight, other than those doors described in regulations 22(1) and 24(1), shall be kept closed whilst the ship is on any voyage except when opened on the express authority of the master.
(3) Any weathertight door which may be opened in accordance with the exception to paragraph (2) shall be kept clear of obstructions which might prevent its rapid closure.
Opening of doors in an emergency
25.
Notwithstanding the provisions of regulations 22(1) and 24(1), gangway and cargo loading doors may be opened in an emergency but only when the master considers such opening will not put the safety of the ship at risk.
Entries in a record book
26.
Entries shall be made in a book retained on board for recording the following -
(1) the times of the last closing, in accordance with regulations 22(1) and 24(1), of the weathertight doors referred to in those regulations and of the next opening of such doors; and
(2) the times of the opening and closing of any weathertight door pursuant to regulations 24(2) and 25.
Listing of loading and unloading berths
27.
- (1) The owner of the ship shall ensure that the ship is provided with a list (the Berth List) of all loading berths at which it is intended the ship shall load or discharge cargo or vehicles.
(2) The Berth List shall list separately for each port which the ship is intended to visit to load or discharge cargo or vehicles -
(a) the loading berths at which the ship in question can, when so loading or discharging, comply with the requirements of regulation 22(1) without relying on paragraph (2) of that regulation; and
(b) where it is intended that the ship shall so load or discharge in the manner permitted by regulation 22(2), the loading berths at which it will so load or discharge.
The berths of the type described in sub-paragraph (b) shall be listed separately from those of the type described in sub-paragraph (a).
(3) A copy of the ship's Berth List shall be supplied to the Maritime and Coastguard Agency.
(4) No ro-ro passenger ship shall, except in an emergency, load or discharge cargo or vehicles through a loading door at any berth which is not listed in the ship's Berth List (and in the copy thereof supplied to the Maritime and Coastguard Agency).
Written instructions regarding the opening of weathertight doors
28.
- (1) The owner of a ship shall ensure that the ship is provided with written instructions concerning the doors referred to in this Part.
(2) Such written instructions shall be approved by the Certifying Authority.
Compliance with written instructions
29.
No door shall be opened or closed except in compliance with the written instructions provided in accordance with regulation 28.
PART V
STABILITY, SURVIVABILITY AND SHIPSIDE MARKINGS
Intact stability standard
30.
After correcting for the effect of free surface of liquids in tanks every subdivided ship shall, in all probable loading conditions, satisfy the stability criteria set out in Schedule 1 in Merchant Shipping Notice MSN 1699(M).
Inclining and stability information
31.
- (1) Every subdivided ship on completion shall be inclined and the elements of her stability determined and every other ship shall undergo the heeling test or buoyancy test specified in Sections 3 and 4 of Schedule 2 in Merchant Shipping Notice MSN 1699(M) respectively. The master shall be supplied by the owner with approved information relating to the stability of the ship in accordance with the following provisions of this regulation.
(2)
(i) In each period of five years every subdivided ship shall have a lightweight survey, to verify any changes in lightship displacement and longitudinal centre of gravity; and every other ship shall undergo the heeling test or buoyancy tests specified in Sections 3 and 4 of Schedule 2 in Merchant Shipping Notice MSN 1699(M) respectively, to verify any changes in the heeling or buoyancy characteristics.
(ii) Such periods shall commence on the date of issue of either a Passenger Certificate or from a previous inclining or lightweight survey, whichever date is earliest.
(iii) The ship shall be re-inclined whenever, in comparison with the ship's approved stability information derived from the previous inclining experiment, a deviation from the lightship displacement exceeding 2 per cent or a deviation of the longitudinal centre of gravity exceeding 1 per cent of the ship's length is found or anticipated.
(iv) Every inclining or lightweight survey or tests made for this purpose or for the purpose of this regulation shall be carried out in the presence of a nominated surveyor.
(v) The interval between the lightweight surveys or tests of any such ship may be extended for a period of not more than one year if, on the production of relevant information about the ship, it can be shown that the lightweight survey or test is not necessary at the required interval.
(3) An approved report of each inclining or lightweight survey or test carried out in accordance with this regulation and of the calculation therefrom of the lightship condition, or heeling or buoyancy particulars, as applicable, shall be placed on board for the use of the master.
(4) Where elements of a ship's stability have been found to have changed following any inclining or lightweight survey or test carried out in accordance with the requirements of paragraph (3), the master shall be supplied with amended approved stability information.
(5) Where any alterations are made to a ship so as materially to affect the stability information supplied to the master amended stability information shall be provided and the ship shall be re-inclined.
(6) For subdivided ships stability information provided pursuant to paragraphs (1), (3), (4) and (5) shall be furnished in the form of a book (the stability information book) which shall be kept on board the ship at all times in the custody of the master. The information shall include particulars appropriate to the ship and shall be in a form acceptable to the certifying authority.
(7) Ships required to comply with the heeling test or buoyancy test specified in Sections 3 and 4 of Schedule 2 in Merchant Shipping Notice MSN 1699(M) shall be furnished with stability information in the form of a written record setting out the principal particulars.
Standard of survivability
32.
- (1) Every ship shall comply with the appropriate standard of survivability in accordance with column 4 of either Table 1 or Table 2 (as appropriate) in Schedule 2 in Merchant Shipping Notice MSN 1699(M) as determined by the description of ships given in columns 1 to 3 of the Tables.
(2) Every subdivided ship shall be subdivided by bulkheads, which shall be watertight up to the bulkhead deck, into compartments the maximum length of which shall be calculated in accordance with section 2 of Schedule 2 in Merchant Shipping Notice MSN 1699(M). Every other portion of the internal structure which affects the efficiency of the subdivision of the ship shall be watertight, and shall be of a design which will maintain the integrity of the subdivision.
Stability in the damaged condition
33.
- (1) This regulation applies to all subdivided ships constructed before 29th April 1990.
(2)
(a)
(i) In addition to the requirements of regulation 30 every ship shall be so constructed as to provide sufficient intact stability in all service conditions to enable the ship to withstand the flooding of any one of the main compartments into which the ship is subdivided in accordance with the requirements of regulation 32.
(ii) If two of the main compartments, being adjacent to each other, are separated by a bulkhead which is stepped under the conditions of paragraph 4(3)(a) of Section 2 of Schedule 2 in Merchant Shipping Notice MSN 1699(M), the intact stability shall be adequate to withstand the flooding of those two adjacent main compartments.
(b) Where in any ship in relation to which the factor of subdivision required by regulation 32 is 0.50, the intact stability shall be adequate to withstand the flooding of any two adjacent main compartments.
(3)
(a) For the purposes of this regulation the sufficiency of the intact stability shall be determined in accordance with the provisions of sections 1 and 2 in Schedule 3 in Merchant Shipping Notice MSN 1699(M).
(b)
(i) The intact stability of every ro-ro passenger ship shall be re-examined in accordance with the provisions of sections 2 or 3 of Schedule 3 as appropriate in Merchant Shipping Notice MSN 1699(M) in order to establish the sufficiency of positive stability provided as required by sub-paragraphs (2)(a) and (3)(a) whenever considered necessary in connection with amended stability information prepared in accordance with regulation 31(4) and (5).
(ii) Such re-examinations shall demonstrate that at all stages of flooding there is sufficient positive residual stability after the assumed damage prescribed in section 1 of Schedule 3 in Merchant Shipping Notice MSN 1699(M).
(4)
(a)
(i) Every ship shall be so constructed as to keep asymmetrical flooding, when the ship is in a damaged condition, at the minimum consistent with efficient arrangements.
(ii) If cross-flooding fittings are provided in any such ship the fitting shall, where practicable, be self-acting but in any case where controls to cross-flooding fittings are provided, they shall be capable of being operated from an accessible position above the bulkhead deck.
(iii) Such fittings together with their controls as well as the maximum heel before equalisation shall be such as will not endanger the safety of the ship.
(iv) The cross-flooding fittings shall be capable of reducing the heel within 15 minutes sufficiently to meet the requirements of sub-paragraph 2(b)(iii) of sections 2 or 3 of Schedule 3 as appropriate in Merchant Shipping Notice MSN 1699(M).
(b) If the margin line may become submerged during the flooding assumed for the purposes of the calculation referred to in Schedule 3 in Merchant Shipping Notice MSN 1699(M), the construction of the ship shall be such as will enable the master of the ship to ensure -
(i) that the maximum angle of heel during any stage of such flooding will not be such as will endanger the safety of the ship; and
(ii) that the margin line will not be submerged in the final stage of flooding.
Requirements for subdivided ships constructed on or after 29th April 1990
(5) Every ship shall comply with the provisions of paragraphs (1) to (4) except that -
(a) for the purpose of paragraph (3)(a) the sufficiency of intact stability shall be calculated in accordance with section 1 and 3 of Schedule 3 in Merchant Shipping Notice MSN 1699(M); and
(b) the heel referred to in paragraph (4)(a) shall not exceed 15 degrees and the cross-flooding fittings shall be capable of meeting the requirements of section 3(2)(c) of Schedule 3 in Merchant Shipping Notice MSN 1699.
Loading and stability assessment of ro-ro passenger ships of Classes III, IV and V
34.
- (1) This regulation applies to ro-ro passenger ships of Classes III, IV and V.
(2)
(a) The owner shall ensure that the master is provided with information relating to the ship's stability during the process of loading and unloading. This information shall be included in the ship's stability information.
(b) Where any alterations are made or changes occur to the ship so as materially to affect information supplied to the master in accordance with sub-paragraph (a), amended information shall be provided.
(c) The information provided pursuant to sub-paragraphs (a) and (b) shall be kept on board the ship at all times in the custody of the master.
(3) The master shall use the information provided in accordance with paragraph (2) and, when necessary, make calculations or cause calculations to be made in order to ensure that during loading and unloading the ship has adequate stability and the freeboard at any door giving access to the hull or to an enclosed superstructure is sufficient to prevent the entry of water.
(4)
(a) On completion of the loading and before it proceeds on a voyage the master or an officer appointed for the purpose shall ascertain -
(i) the ship's draught at the bow and at the stern;
(ii) the trim of the ship by the bow or the stern; and
(iii) the vertical distance from the waterline to the appropriate subdivision load line mark on each side of the ship.
(b) The draughts, trim and the vertical distances ascertained in accordance with paragraph (a) shall be recorded in a book retained on board for that purpose.
(5) Subject to paragraph (6), before proceeding on a voyage the master shall -
(a) cause the maximum permissible vertical position of the ship's centre of gravity relative to its keel (KG) or the minimum permissible transverse metacentric height (GM) whichever is appropriate to the ship, to be determined and recorded in a book retained on board for that purpose; and
(b) ensure that the condition of loading of the ship as recorded in accordance with sub-paragraph (5)(a) is within the permissible standard of stability determined in accordance with sub-paragraph (4)(b) and satisfies all the relevant requirements prescribed in the stability information book.
(6)
(a) Where a ship regularly plies to and from the same place in conditions of loading which correspond closely to conditions of loading which are clearly specified in the stability information book and such specified conditions of loading allow a sufficient margin of stability beyond the minimum required for safety purposes to allow for small variations which might occur between a specified condition of loading and the actual loading of the ship, the Secretary of State may approve the conditions of loading so specified.
(b) When conditions of loading have been approved in accordance with sub-paragraph (a) before the ship proceeds on a voyage the master shall -
(i) ensure that the actual condition of loading of the ship corresponds closely to one of the specified conditions of loading so approved; and
(ii) record the specified condition of loading so approved to which the actual condition corresponds, in a book specially retained on board for that purpose.
(7) A copy of the information required by sub-paragraph (6)(b)(ii) shall be forwarded, as soon as is practicable, to a person nominated by the owner as being responsible and retained in his custody for a period of at least one calendar month.
Draught marks
35.
Every subdivided ship shall have scale of draughts marked clearly at the bow and stern.
Subdivision load lines
36.
Every subdivided ship shall be marked on its side amidships with the subdivision load lines assigned to it in accordance with Schedule 5 in Merchant Shipping Notice MSN 1699(M).
Freeboard marking
37.
Passenger ships which are not required to be subdivided shall be marked on the side amidships with the freeboard assigned in accordance with paragraph 2 of Section 3 of Schedule 2 in Merchant Shipping Notice MSN (1699(M). The mark shall consist of a horizontal line 25 millimetres in breadth and 300 millimetres in length. The colour and method of marking shall be in accordance with regulation 36.
Exhibition of damage control plans
38.
In every subdivided ship there shall be permanently exhibited, for the information of the officer in charge of the ship, plans showing clearly for each level the boundaries of the watertight compartments, the openings therein, the means of closing such openings and the position of the controls and the arrangements for the correction of any list due to flooding. In addition, booklets containing such information shall be made available by the owner for the use of the officers of the ship.
Sounding pipes
39.
In every ship all tanks forming part of the structure of the ship and all watertight compartments, not being part of the machinery space, shall be provided with efficient sounding arrangements which shall be protected where necessary against damage.
PART VI
BILGE PUMPING ARRANGEMENTS
General
40.
- (1) Every ship shall be provided with an efficient pumping plant capable of pumping from and draining any watertight compartment in the ship, other than a space permanently appropriated for the carriage of fresh water, water ballast or oil and for which other efficient means of pumping or drainage is provided, under all conditions likely to arise in practice after a casualty, whether or not the ship remains upright. Wing suctions shall be provided if necessary. Efficient arrangements shall be provided whereby water in any watertight compartment may find its way to the suction pipes.
(2) Sanitary, ballast and general service pumps having a suitable capacity in accordance with paragraph 4(3) of Schedule 6 in Merchant Shipping Notice MSN 1699(M) may be accepted as independent power pumps if fitted with necessary connections to the bilge pump systems.
Number and type of bilge pumps
41.
Every ship shall be provided with bilge pumps in accordance with tables set out in Schedule 6 in Merchant Shipping Notice MSN 1699(M).
Requirements for bilge pumps and bilge suctions
42.
Bilge pumps and bilge piping provided in any ship to meet the requirements of these Regulations shall as far as practicable meet the conditions and specifications set out in Schedule 6 in Merchant Shipping Notice MSN 1699(M).
PART VII
ELECTRICAL EQUIPMENT AND INSTALLATIONS
General
43.
- (1) In every ship the electrical equipment and installations (including any electrical means of propulsion) shall be such that the ship and all persons on board are protected against electrical hazards.
(2)
(i) In every ship constructed before 25th May 1980 where the power supply for an automatic sprinkler system is required to have not less than two sources of power supply for sea-water pumps, air compressors and automatic alarms, and that power is electrical, such supplies shall be taken from the main generating sets and from an emergency source of electric power.
(ii) One supply shall be taken from the main switchboard and another from the emergency switchboard, by separate feeders reserved solely for that purpose.
(iii) Such feeders shall be run to a change-over switch situated near to the sprinkler unit and the switch shall normally be kept closed to the feeder from the emergency switchboard.
(iv) The change-over switch shall be clearly labelled and no other switch shall be permitted in these feeders.
(v) For ships constructed on or after 25th May 1980 the electrical arrangements for any automatic sprinkler and fire alarm and fire detection system shall comply with the requirements specified in Schedule 2 of Merchant Shipping Notice MSN 1666.
(3) The electrical equipment and installations in every ship shall be such that -
(a) all electrical auxiliary services necessary for maintaining the ship in normal operational and habitable condition will be ensured without recourse to the emergency source of electrical power; and
(b) the electrical services essential for safety will be ensured under emergency conditions.
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