63 STAT.] MULTILATERAL-TELECOMMUNICATIONS-OCT. 2 , 1947 (Chapter XIII, art. 33 RR) (753-761) 753 (2) The rules of procedure fixed in article 29 are ap- plicable to stations of the maritime mobile service using frequencies in the bands between 4 000 and 23 000 kc/s. 754 (3) Stations of the maritime mobile service open to pub- lic correspondence and using frequencies in the bands 405 to 535 kc/s in addition to frequencies in the band 4 000 to 23 000 kc/s are required to observe the provisions of 737. 755 § 17. (1) Beginning at the low frequency end, each of the radiotelegraph bands reserved for the use of ship stations is divided into three bands as follows: 756 a) A band of working frequencies for the use of passenger ships.)' 757 b) A band of calling frequencies for the use of all ship and aircraft stations entering into com- munication with stations of the maritime mobile service. 758 c) A band of working frequencies for the use of cargo ships. 759 (2) For the purposes of this section: - a passenger ship is a vessel defined as such by the Convention for the Safety of Life at Sea. - a cargo ship is any ship that is not a passenger ship as defined above. 760 (3) The arrangement of the frequencies in the ship radiotelegraph bands is illustrated graphically in appendix 10. 761 § 18. For the exchange of radiotelegraph communications with stations of the maritime mobile service, aircraft stations may utilize the frequencies allocated to that service for radio- telegraphy between 4 000 and 23 000 kc/s. When using these frequencies, aircraft stations must comply with the provisions of this Section. 756.1 " Exceptionally, whaling factory vessels handling a large volume of traffic may use frequencies in this band from October to March of each year. 1865
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