PROCLAMATIONS, 1937 RULES FOR THE MEASUREMENT OF VESSELS FOR THE PANAMA CANAL EFFECTIVE MARCH 1, 1938. ALL VESSELS TO PRESENT TONNAGE DOCUMENT AT CANAL 1. ARTICLE I. All vessels, American and foreign, except warships, floating drydocks, and dredges, including vessels of commerce and Army and Navy transports, colliers, supply ships, and 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. 2. 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 dis- placement at each possible mean draft. VESSELS DESIGNATED AS "SUPPLY SHIPS", "COLLIERS", AND "WARSHIPS" 3. It is to be understood that "supply ships" shall include Army and Navy ammunition ships, refrigerator ships, distilling ships, repair ships and 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; and that "warships" shall include armed coast guard vessels and vessels devoted to naval training purposes. GROSS TONNAGE SPACES TO BE INCLUDED IN GROSS TONNAGE 4. ART . II. Gross tonnage as determined by these rules shall ex- press the total 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. 5. Only such spaces as are specifically mentioned in article IV, below, shall be exempted from measurement. All other spaces shall be considered as closed in and shall be included in gross tonnage. SPACES CONSIDERED PERMANENTLY COVERED AND CLOSED IN 6. ART . III . By permanently covered and closed-in spaces on or above the upper deck are to be understood all those which are sep- arated off by decks or coverings, or fixed partitions, and which, there- fore, represent an increase of capacity that is or may be used for the stowage of cargo, or for the berthing and accommodation of the passen- gers, 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 All vessels to pre- sent tonnage docu- ment at Canal. Displacement scale and curves. "Supply ships", "colliers", and "war- ships." Vessels included. Grosa tonnage. Saoes to he in- Pei. p. 371 Spaces considered permanently covered and closed-in. 373
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