Components of gross tonnage.
Fit Schedule.
(d) is register tonnage and the deductions and allowances made pursuant to regulations II and 12 respectively in ascertaining that tonnage:
(e) in the case of a ship to which gross and register tonnages have been assigned in accordance with regulation 13, or to which alternative tonnages have been assigned in accordance with regulation 14, particulars of the spaces the tonnage of which has been excluded by virtue of the provisions of regulation 13 or regulation 14, as the case may be, in ascertaining such tonnages;
O the position in which any tonnage mark assigned to the
ship is to be placed.
(2) For the purpose of ascertaining in relation to ships not registered in Hong Kong the amounts of rates and charges based upon tonnage, the Director may issue to the owner of any ship the topmage of which has been ascertained in accordance with these regulations a certificate of British tonnage as aforesaid, and the gross and register tonnages as stated in that certificate shall, unless any alteration is made in the form or capacity of the ship or it is discovered that the tonnage of the ship has been erroneously computed, be taken for that purpose to be the gross and register tonnages of the ship.
(3) On remeasurement of a ship any certificate of British ton- nage in force in relation to that ship shall be delivered up to the Director and the Director shall issue a new certificate in place thereof.
PART 11.
GROSS TONNAGE AND REGISTER TONNAGE.
Gross Tonnage.
6. (1) Subject to the provisions of Part III of these regula- tions, the gross tonnage of a ship shall be the sum of—
(a) the underdeck tonnage of the ship ascertained in accord- ance with the provisions of regulation 7 and paragraph 1 of Rule I of the First Schedule.
(b) the tonnage of betweendeck space between the second deck and the upper deck ascertained in accordance with the provisions of paragraph 2 of the said Rule I;
(c) the tonnage of permanently closed-in spaces on or above the upper deck including that of breaks situated above the line of the deck but excluding—
(i) the tonnage of hatchways described in regulation 8:
(ii) the tonnage of framed-in spaces on or above the upper deck which contain any part of the propelling machinery or which light or ventilate space appropriated for such machinery:
(iii) any space excluded by virtue of the provisions of regulation 9,
ascertained in accordance with the provisions of para- graphs 3, 4 and 5 of the said Rule I;
(d) the tonnage of batchways described in regulation 8. ascertained in accordance with the provisions of that regulation and paragraph 5 of the said Rule 1;
(e) the tonnage of framed-in spaces on or above the upper deck which contain any part of the propelling machinery or which light or ventilate space appropriated for such machinery, ascertained in accordance with the provisions of paragraph 5 of the said Rule I, subject to the conditions that
(i) the owner of the ship has made written application to the Director for the inclusion of such spaces in the propelling machinery space of the ship:
(ii) they are permanently marked by a notice stating their purpose: and
(ii) they are certified by a surveyor of ships as safe and seaworthy and properly constructed for their purpose, as reasonable in extent for that purpose, and as being such that they cannot be used for any other purpose.
(2) In the case of a ship the tonnage of which below the upper deck has been measured in accordance with Role II of the First Schedule, that tonnage shall be included instead of the ton- nages specified at (c) and (b) in paragraph (1).
(3) For the purpose of these regulations the expression "per- manently closed-in spaces on or above the upper deck" shall include-
(a) a poop, bridge or forecastle notwithstanding the presence of an opening in the end traverse bulkhead thereof, unless the opening extends from deck to deck for one half or more of the breadth of the deck in way of the bulkhead;
(b) a deck house notwithstanding the presence of an opening in one of the boundary bulkheads thereof exposed to the weather, unless the opening extends from deck to deck for one half or more of the length of the bulkhead in which it is situated and is four feet wide or more: