388 PROCLAMATIONS, 1937 (d) Spaces occupied by the donkey engine and boiler when used in connection with the main machinery for propelling the ship and when situated within the boundary of the engine room or of the casing above the engine room. (e) Tanks (other than double-bottom compartments) fitted for the stowage of fuel oil and lubricating oil not already included by meas- urement under the provisions of paragraph 68. NO SPACE MAY BE DEDUCTED UNLESS INCLUDED IN GROSS TONNAGE No space deduction 71. ART. XV. Under no circumstances shall any space which has unless included in gross tonnage. not been included in the gross tonnage be deducted from gross tonnage. DEDUCTED SPACES, IF USED, MUST BE ADDED TO NET TONNAGE . Deducted spaces, if used, must be added to net tonnage. Ante, p. 385. Officials authorized to measure vessels and issue certificates. 72. The use of the whole or any portion of a deducted space, other than fuel spaces deducted under article XIII, to stow cargo of any kind or stores other than boatswain's stores, or to provide passenger accommodations, shall be evidence that the entire space thus wholly or partially occupied is a part of the actual earning capacity of the ship, and the entire space shall be added to, and become a part of, the net tonnage upon which Panama Canal tolls shall be collected. OFFICIALS AUTHORIZED TO MEASURE VESSELS AND ISSUE CERTIFICATES 73. ART . XVI . Only such officials as are authorized in the several foreign countries and in the United States to measure vessels and to issue tonnage certificates for purposes of national registry, and such other officials as are authorized by the President of the United States, or by those acting for him, to measure vessels and to issue Panama Canal tonnage certificates, shall have authority to measure vessels for Panama navigation or to issue Panama tonnage certificates. Tonnage certificates TONNAGE CERTIFICATES ISSUED UNDER THESE RULES MAY BE CORRECTED issued under these rules. BY OFFICIALS AT THE PANAMA CANAL Subject to correc- tion. Panama Canal ton- nage certificates. 74. ART . XVII . Tonnage certificates presented at the Panama Canal shall be subject to correction by the official or officials authorized by the President of the United States, or by those acting for him, to administer these measurement rules, insofar as may be necessary to make the certificates conform to these rules. PANAMA CANAL TONNAGE CERTIFICATES 75. ART . XVIII . The Panama Canal tonnage certificates issued by the measurement authorities of the United States and the several foreign countries shall correspond in substance and form to the sample certificate appended to these rules. Blank certificates in English will be furnished by the Secretary of War or the Governor of the Panama Canal upon request of the measurement authorities of foreign coun- tries. The measurement authorities of any foreign country may also provide themselves with Panama Canal measurement certificates printed in English or in the language of the foreign country, provided such certificates strictly correspond in substance and form to the sample certificate appended to these rules; and provided further, that if it is desired to have a certificate in the language of the foreign country, there must also be a corresponding certificate issued to the vessel in English.
�
