Page:United States Statutes at Large Volume 63 Part 2.djvu/474

 S: STAT.] MIII,TILATEEAAITELECOMilt'NICATIONS-OCT. 2, 1947 (Chapter VII, art. 19 RR) (429-432) - the geographical name of the place as it appears in the List of Coast and Ship Stations, followed preferably by the word RADIO or by any other appropriate indication. 429 (2) Ship stations using radiotelephony may use as a call sign: - a call sign established in conformity with 423; - a call sign consisting of two or three letters fol- lowed by four digits (other than the digit 0 or 1 where they immediately follow a letter); - the name of the ship as it appears in the inter- national documents, preceded, if necessary, by the name of the owner. 430 (3) Aeronautical stations using radiotelephony may use as a call sign: - a call sign established in conformity with 421 and 422; - the name of the airport or geographical name of the place as it appears in the List of Aeronautical and Aircraft Stations, followed by the word TOWER or any other appropriate word. 431 (4) Aircraft stations using radiotelephony may use as a call sign: - a call sign established in conformity with 424; - a combination of characters corresponding to the official registration mark assigned to the aircraft. 432 (5) Land stations other than coast and aeronautical sta- tions, which use radiotelephony may use as a call sign: - a call sign established in conformity with 421; - the geographical name of the place followed, if necessary, by any other appropriate indication. 81939 0-52- -'T. 11--31 1771

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