Civil air regulations amendments. 40-47. Scheduled interstate air carrier certification and operation rules; 41-12, Certification and operation rules for certificated route air carriers engaging in overseas and foreign air transportation and air transportation within Hawaii and Alaska; 42-11, Aircraft certification and operation rules for supplemental air carriers, commercial operators using large aircraft, and certificated route air carriers engaging in charter flights or other special services: C-46 nontransport category airplane cargo operations; effective July 12, 1964.