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(d) engineers' store rooms and workshops not exceeding in total toonage three-quarters of one per cent of the gross tonnage of the ship:
(e) oil fuel settling tanks serving the main or auxiliary pro- pelling machinery, having a total capacity sufficient to provide not less than twenty-four hours or more than ninety-six hours steaming for the ship at maximum speed; and including also framed-in spaces on or above the upper deck described in sub-paragraph (e) of paragraph (1) of regula- tion 6 and included in the gross tonnage of the ship in accord- ance with that provision;
"second deck" means the deck next below the upper deck. being
1 deck-
(a) which is fitted as an integral part of the ship's structure; (b) which is continuous at least between peak bulkheads both
fore and aft and transversely; and
(c) in which all hatchways are fitted with substantial and
durable covers,
a deck being taken to be continuous for this purpose not- withstanding the presence in it of-
(0) openings serving propelling machinery space or leading
to ladderways or stairways;
(ii) hatch or ventilation trucks, provided that they do not extend fore and aft from one main traverse bulkhead to another:
(iii) chain lockers or cofferdams; or
(iv) a break or breaks the aggregate height of which above the line of continuation of the deck does not exceed four feet;
“tonnage deck” means the second deck except in the case of single
deck ships, in which case it means the upper deck;
"upper deck" means the uppermost complete deck exposed to sea and weather fitted as an integral part of the ship's structure, being a deck all openings in the weather portions of which are fitted with permanent means of closing and below which all openings in the sides of the ship are fitted with permanent means of watertight closing. but shall, in the case of an open ship, be taken to be the upper edge of the upper strake of the gunwale.
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3. The tonnage of any ship registered in Hong Kong under the principal Act, whether under Part I or Part IV thereof, shall be ascertained in accordance with these regulations.
4. (1) The owner and the master of a ship to be measured shall make it available for measurement by a surveyor of ships pursuant to section 6 of the principal Act and afford all necessary facilities for its inspection and measurement and shall produce for the surveyor's use and retention if required such plans, drawings, specifications and other documents relating to the ship as be may require.
(2) Subject to paragraph (3), the tonnage of a ship shall be measured in the manner specified in Rule I of the First Schedule and in the Second Schedule.
(3) In any case in which the surveyor is satisfied that by reason of the ship's being laden or otherwise measurement of the tonnage of the ship below the upper deck in accordance with paragraph (2) is not reasonably practicable, such tonnage shall be measured in the manner specified in Rule IT of the First Schedule and in the case of a ship so measured the provisions of regulations 13 and 14 shall not apply.
(4) The Director may on the application of the owner of any ship the tonnage of which below the upper deck has been measured in accordance with paragraph (3) direct such tonnage to be measured in accordance with paragraph (2) and cause the particu- lars relating to its registered tonnage to be altered accordingly.
(5) All measurements required by these regulations shall be taken and expressed in feet and fractions of a foot, and such fractions shall be expressed in decimals.
(6) Tonnage in relation to any ship or space in a ship shall be measured in terms of cubic capacity, one hundred cubic feet representing one ton.
5. (1) The Director shall issue to the owner of every ship registered in Hong Kong under the principal Act, the tonnage of which has been ascertained in accordance with these regulations, a certificate of British tonnage certifying the registered tonnage of the ship and containing the following particulars-
(a) the name, port of registry and official number of the ship: (b) its registered dimensions:
(c) its gross tonnage and the tonnage of each of the com- ponents thereof specified in paragraph (1) of regulation 6;
Ascertainment of tonnage.
Method of measurement,
First Schedule.
Second Schedule.
Certidates of British tondago.
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