<Li> General Radiocommunication Regulations and Additional Radiocommunication Regulations (Cairo, 1938) </Li> <Li> Radio Regulations and Additional Radio Regulations (Atlantic City, 1947), where "it was decided that the International Civil Aviation Organization and other international aeronautical organizations would assume the responsibility for procedures and regulations related to aeronautical communication . However, ITU would continue to maintain general procedures regarding distress signals ." </Li> <Li> 1959 Administrative Radio Conference (Geneva, 1959) </Li> <Li> International Telecommunications Union, Radio </Li>

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