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PART III.

RULES FOR THE MEASUREMENT OF VESSELS FOR THE PANAMA CANAL.

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RULES FOR THE MEASUREMENT OF VESSELS FOR THE PANAMA

CANAL.

ARTICLE I. All vessels, American and foreign, except warships, including to All vessels to present vessels of commerce and Army and Navy transports, colliers, supply ships, and cana). hospital ships, applying for passage through the Panama Canal shall present a duly authenticated certificate stating the vessel's gross and net tonnage as determined by these rules. Vessels of commerce, Army and Navy transports, colliers, supply ships, and hospital ships without such certificate shall, before passing through the canal, or before being allowed to clear therefrom, be measured, and shall have their gross and net tonnage determined in accordance with these rules.

All warships, American and foreign, other than transports, colliers, supply and hospital ships, shall present duly authenticated displacement scale and curves stating accurately the tonnage of displacement at each possible mean draft. It is to be understood that "supply ships” shall include Army and Navy Vessels designated as

"supply ships" and ammunition ships, refrigerator ships, distilling ships, repair ships, submarine colliers.” tenders, and destroyer tenders, as well as Army and Navy vessels used to transport general Army and Navy supplies; and that “colliers” shall include Army and Navy vessels used to transport coal or fuel oil.

RULES APPLYING TO VESSELS OF COMMERCE, ARMY AND NAVY TRANSPORTS,

COLLIERS, SUPPLY SHIPS, AND HOSPITAL SHIPS.

GROSS TONNAGE.

STANFORD LIDRANIEL

in .

ART. II. Gross tonnage as determined by these rules shall express the What shall be intotal capacity of vessels, i. e., the exact cubical contents of all spaces below the upper deck and of all permanently covered and closed-in spaces on or above that deck, excepting such spaces as may be hereinafter permitted as exemptions from measurement. Gross tonnage shall include not only all permanently covered and closed-in spaces which are or may be used for stowing cargo and stores or for providing shelter and other comfort for passengers or crew, but also such spaces as are used, or are intended to be used, in navigating and serving the vessel.

Only such spaces as are specifically mentioned in Article IV, below, shall be exempted from measurement. All other spaces shall be considered as closedin and shall be included in gross tonnage.

ART. III. By permanently covered and closed-in spaces on or above the What shall be conupper deck are to be understood all those which are separated off by decks covered and closed-i or coverings, or fixed partitions, and which, therefore, represent an increase of capacity that is or may be used for the stowage of cargo, or for the berthing and accommodation of the passengers, the officers, or the crew. No break in a deck, nor any opening or openings in a deck or the covering of a space or in the partitions or walls of a space, nor the absence of a partition shall prevent a space from being measured and comprised in gross tonnage if the opening or openings in the deck, partition, or side wall can be closed in, or if the absent partition can be put in place, after admeasurement and the spaces thus closed in be thereby better fitted for the transport of goods or passengers.

spaces.

Spaces exempted from measurement and gross tonnage.

In the case of a vessel having a "trunk" or "turret", the deck forming the covering of the trunk or turret shall be considered the upper deck, and all spaces below that deck within the trunk or turret shall be considered as covered and closed-in. The space within the turret or trunk shall be measured as are other between-deck spaces.

Spaces considered as “permanently closed-in” and spaces permitted to be exempted from measurement shall be determined solely by the provisions contained in these rules, and not by any definitions or provisions contained in the measurement rules or regulations of any country.

Art. IV. The following spaces shall be exempted from measurement and shall not be included in the gross tonnage, and no other spaces shall be exempted:

SECTION 1. Spaces on or above the upper deck not permanently covered or closed-in, or which may not be readily covered or closed-in. In the application of this rule it will be understood that,

(a) Spaces under decks or coverings having no other connection with the body of the ship than the stanchions necessary for their support are not spaces separated off, but are spaces permanently exposed to the weather and the sea and are not to be included in the gross tonnage.

(6) A space within a poop, forecastle, bridge house, or other permanently covered and closed-in” superstructure or erection may be considered as not permanently covered or closed-in, and may consequently be excluded from tonnage, if the space is opposite an end opening which is without a coaming and has no headplates or planks and is not provided with means of closing, and which opening has a breadth equal to or greater than half the breadth of the deck at the line of the opening, and if the space opposite the opening can not be used to shelter other merchandise than cargo or stores that do not require protection from the sea. If the opening is fitted with a coaming, the space within it is to be included in the gross tonnage. This provision shall be so applied as to exempt from measurement 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 the width of the deck at the line of the opening; provided, that any closed-in space between the open face and the line drawn parallel to it shall be measured. The remainder of the space within a poop, forecastle, bridge house, or other superstructure or erection shall be considered as available for the accommodation of cargo or stores, of passengers or of the ship's personnel, and shall be measured and included in the gross tonnage. (See Figs. 1, 2, and 3.)

Should the open space within a poop, forecastle, bridge house, superstructure, or erection between the end opening and a parallel line distant from the opening by half the breadth of the deck become, because of any arrangement, of less width than half the breadth of the deck, then only the space between the line of the end opening and a parallel line drawn through the point where the athwartship width of the open space within the poop, forecastle, bridge house, superstructure, or erection becomes equal to, or less than, half the breadth of the deck shall be exempted from measurement. (See Figs. 4, 5, 6, and 7.) The remainder of the space within the poop, forecastle, bridge house, superstructure, or erection is to be included in the gross tonnage.

When two erections extending from side to side of the ship are separated by an interval the fore-and-aft length of which is less than the least half breadth of the deck in way of such interval, then whatever be the breadth of the permanent end openings of the erections, the entire erections, less the interval separating them, shall be measured and included in the gross tonnage. (See Fig. 8.)

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