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Singapore legislation

Regulation 12

of Merchant Shipping (Tonnage) Regulations

Regulation 12

Definition of terms used in this Part

Subregulation 1

Upper Deck:The upper deck is the uppermost complete deck exposed to weather and sea, which has permanent means of weathertight closing of all openings in the weather part thereof, and below which all openings in the sides of the ship are fitted with permanent means of watertight closing. In a ship having a stepped upper deck, the lowest line of the exposed deck and the continuation of that line parallel to the upper part of the deck is taken as the upper deck.

Subregulation 2

Moulded Depth:

Subregulation a

The moulded depth is the vertical distance measured from the top of the keel to the underside of the upper deck at side. In wood and composite ships the distance is measured from the lower edge of the keel rabbet. 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.

Subregulation b

In ships having rounded gunwales, the moulded depth shall be measured to the point of intersection of the moulded lines of the deck and side shell plating, the lines extending as through the gunwales were of angular design.

Subregulation c

Where the upper 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.

Subregulation 3

Breadth:The Breadth is the maximum breadth of the ship, measured amidships to the moulded line of the frame in a ship with a metal shell and to the outer surface of the hull in a ship with a shell of any other material.

Subregulation 4

Enclosed Spaces:Enclosed spaces are all those spaces which are bounded by the ship’s hull, by fixed or portable partitions or bulkheads, by decks or coverings other than permanent or movable awnings. No break in a deck, nor any opening in the ship’s hull, in a deck or in a covering of a space, or in the partitions or bulkheads of a space, nor the absence of a partition or bulkhead, shall preclude a space from being included in the enclosed space.

Subregulation 5

Excluded Spaces:Notwithstanding the meaning assigned to “enclosed spaces” in paragraph (4), the spaces referred to in sub-paragraphs (a) to (e) shall be called excluded spaces and shall not be included in the volume of enclosed spaces, except that any such space which fulfils at least one of the following 3 conditions shall be treated as an enclosed space:— the space is fitted with shelves or other means for securing cargo or stores;— the openings are fitted with any means of closure;— the construction provides any possibility of such openings being closed:

(a)

(i)A space within an erection opposite an end opening extending from deck to deck except for a curtain plate of a depth not exceeding by more than 25 millimetres the depth of the adjoining deck beams, such opening having a breadth equal to or greater than 90% of the breadth of the deck at the line of the opening of the space. This provision shall be applied so as to exclude from the enclosed spaces only the space between the actual end opening and a line drawn parallel to the line or face of the opening at a distance from the opening equal to one-half of the width of the deck at the line of the opening (Figure 1 in the Second Schedule).

(ii)

Should the width of the space because of any arrangement, except by convergence of the outside plating, become less than 90% of the breadth of the deck, only the space between the line of the opening and a parallel line drawn through the point where the athwartships width of the space becomes equal to, or less than, 90% of the breadth of the deck shall be excluded from the volume of enclosed spaces (Figures 2, 3 and 4 in the Second Schedule).

(iii)

Where an interval which is completely open except for bulwarks or open rails separates any two spaces, the exclusion of one or both of which is permitted under sub‑paragraph (a)(i) or (ii), such exclusion shall not apply if the separation between the two spaces is less than the least half breadth of the deck in way of the separation (Figures 5 and 6 in the Second Schedule).

(b)

A space under an overhead deck covering open to the sea and weather, having no other connection on the exposed sides with the body of the ship than the stanchions necessary for its support. In such a space, open rails or a bulwark and curtain plate may be fitted or stanchions fitted at the ship’s side, provided that the distance between the top of the rails or the bulwark and the curtain plate is not less than 0.75 metres or one-third of the height of the space, whichever is the greater (Figure 7 in the Second Schedule).

(c)

A space in a side-to-side erection directly in way of opposite side openings not less in height than 0.75 metres or one-third of the height of the erection, whichever is the greater. If the opening in such an erection is provided on one side only, the space to be excluded from the volume of enclosed spaces shall be limited inboard from the opening to a maximum of one-half of the breadth of the deck in way of the opening (Figure 8 in the Second Schedule).

(d)

A space in an erection immediately below an uncovered opening in the deck overhead, provided that such an opening is exposed to the weather and the space excluded from enclosed spaces is limited to the area of the opening (Figure 9 in the Second Schedule).

(e)

A recess in the boundary bulkhead of an erection which is exposed to the weather and the opening of which extends from deck to deck without means of closing, provided that the interior width is not greater than the width at the entrance and its extension into the erection is not greater than twice the width of its entrance (Figure 10 in the Second Schedule).

Subregulation 6

Passengers:A passenger is every person other than:

(a)

the master and the members of the crew or other persons employed or engaged in any capacity on board a ship on the business of that ship; and

(b)

a child under one year of age.

Subregulation 7

Cargo Spaces:Cargo spaces to be included in the computation of net tonnage are enclosed spaces appropriated for the transport of cargo which is to be discharged from the ship, provided that such spaces have been included in the computation of gross tonnage. Such cargo spaces shall be certified by permanent marking with the letters CC (cargo compartment) to be so positioned that they are readily visible and not to be less than 100 millimetres in height.

Subregulation 8

Weathertight:Weathertight means that in any sea conditions water will not penetrate into the ship.

Subregulation 9

Passenger Ship:A passenger ship is a ship certified to carry more than 12 passengers.