Commonwealth Numbered Regulations

1988 NO. 158 CIVIL AVIATION REGULATIONS - REG 184

184. (1) Where aerodromes are equipped with two-way radiotelephony apparatus,
Air Traffic Control shall give control instructions by this means to all
aircraft equipped to receive radiotelephony messages.

(2) All such communication between aircraft and an Air Traffic Control unit
shall be in the English language:
Provided that:

   (a)  when authorised by the Authority in exceptional cases and if personnel
        of the Air Traffic Control unit are available who can intelligibly
        speak both the English language and the other language concerned; or

   (b)  when the owner or operator of the aircraft has furnished properly
        qualified personnel who can intelligibly speak both the English
        language and the language concerned and they are available to assist
        the Air Traffic Control unit in communicating with the aircraft; the
        communications may be made in the language concerned.