Information about Civil Aviation Safety Regulations (CASR) The Civil Aviation Safety Regulations 1998 (CASR) is the overarching aviation safety framework in Australia. Civil Aviation Regulations (CAR) The Civil Aviation Regulations (CAR) form part of the aviation regulatory framework in Australia. Manuals of Standards (MOS) Legislative instruments which set out aviation standards. Civil Aviation Orders (CAO) The Civil Aviation Orders (CAO) include information on technical standards and specifications. Show more Show more Show less Also see Rules by category Find rules by category including flight operations, flight crew licensing and continuing airworthiness. Rules by status Find rules and regulations by status - current, changing, in transition or proposed. Show more Show less