Information about All legislative instruments Airworthiness Directives Search all Airworthiness Directives for aircraft, engines and equipment. Civil Aviation Orders Find Civil Aviation Orders that describe how you can meet operational, airworthiness and safety requirements. Manuals of Standards Find all our Manuals of Standards that complement requirements set in the Civil Aviation Safety Regulations. Show more Show more Show less Other types of instruments Approvals Authorisations Conditions on authorisations Designations Determinations Directorate of Aviation Safety Regulations Directions Exclusions Exemptions Instructions Instruments Other Permissions and permits Prescription instruments Requirements Specifications Show more Show more Show less Also see Australian Airspace Policy Statement Read about the statement that provides guidance to us on the administration of airspace as a national resource. Non-legislative instruments Non-legislative instruments include exemptions to regulations or a Manual of Standard for a particular person. Show more Show less