Commonwealth Consolidated Regulations Commonwealth Consolidated Regulations(1) An ATS provider must ensure that any air traffic service that it provides is provided in accordance with the procedures and rules set out in ICAO Doc. 4444, as varied by Gen 1.7 of Part 1 of the AIP.
(2) If a regional supplementary procedure set out in ICAO Doc. 7030 relates to an air traffic service that the provider provides, the provider must also ensure that the service is provided in accordance with that procedure.
(3) However, the provider may deviate from a procedure or rule mentioned subregulation (1), or a regional supplementary procedure mentioned in subregulation (2), if an emergency, or other circumstance, arises that makes the deviation necessary in the interests of aviation safety.
(4) As soon as practicable, the provider must tell CASA of the deviation and how long it is likely to last.