factory ships or whalecatchers attached thereto may be used for the purpose of taking or treating baleen whales, shall be extended for the season 1946/47 so as to cover the period from the 8th December to the 7th April inclusive. ARTICLE 2. ofaticsrespecting Each contracting Government shall give notice to the Government factory ships. of the United Kingdom when factory ships registered under the law of any territory under its authority or otherwise under its jurisdiction engage in whaling operations in the area defined by Article 7 of the 52 stat. 1461 . Principal Agreement. The Government of the United Kingdom will inform the other contracting Governments of all notices received under this paragraph and shall itself similarly give notice to the other contracting Governments if factory ships registered under the law of any territory under its authority or otherwise under its jurisdiction engage in whaling operations in the said area. Hump back whales. 53 Stat. 1794. Quota of blue whale units. 52 Stat. 1461. Operation of factory ships as land stations. 53 Stat. 1795. ARTICLE 3. The prohibition contained in Article 1 of the Protocol of 1938 relating to the taking of hump back whales in any waters south of 40° south latitude shall apply during the season of 1946/47. ARTICLE 4. (1) During the season of 1946/47 the number of baleen whales caught in the area defined by Article 7 of the Principal Agreement shall not exceed 16,000 blue whale units. (2) For the purposes of paragraph 1 of this Article blue whale units shall be calculated on the basis that one blue whale equals- (a) Two fin whales or (b) Two and a half hump back whales or (c) Six sei whales. (3) Each contracting Government undertakes to ensure that the International Bureau for Whaling Statistics shall be provided, within two days after the end of each calendar week, with data on the number of blue whale units caught by each factory ship under the jurisdiction of the said Government in the area defined by Article 7 of the Principal Agreement. The Government of the United Kingdom shall consult from time to time with the International Bureau for Whaling Statistics and if it should appear that the annual quota provided by paragraph (1) of this Article may be reached before the 7th April, the International Bureau for Whaling Statistics shall be requested to determine, on the basis of the data provided, the date on which the annual quota of blue whale units shall be deemed to have been reached and to notify each contracting Government of that date not less than two weeks in advance thereof. The taking of baleen whales shall be illegal after the date so determined. ARTICLE 5. The provisions of Article 3, paragraph (2), of the Protocol of 1938, regarding the operation of factory ships as land stations in the terri- 1214 TREATIES [61 STAT.
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