(6 STAT.] MULTILATERAL-TELEC IOMMUNICATIONS-OCT. 2 , 1947 (Chapter XI, art. 24 RR) (551-555) ments may fix the conditions to be fulfilled in order to obtain a radiotelephone operator's certificate, intended to be used in radiotelephone stations complying with certain technical con- ditions and certain operating conditions. These conditions and agreements are mentioned in the certificates issued to such operators. Section IV. Qualifying Service 551 § 17. (1) A first class radiotelegraph operator is authorized to embark as chief operator of a ship station of the third category (see 845). 552 (2) Before becoming chief operator of a ship station of the second category (see 844), a first class radiotelegraph operator must have had at least six months' experience as operator on board ship or in a coast station. 553 (3) Before becoming chief operator of a ship station of the first category (see 843), a first class radiotelegraph opera- tor must have had at least one year's experience as operator on board ship or in a coast station. 554 § 18. (1) A second class radiotelegraph operator is authorized to embark as chief operator of a ship station of the third category (see 845). 555 (2) Before becoming chief operator of a ship station of the second category (see 844), a second class radiotelegraph operator must have had at least six months' experience as an operator on board ship. 1811
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