Sending radio messages

No aircraft, whether registered in Belize or elsewhere, or unregistered, shall send radio messages or signals while flying within Belize except in accordance with the conditions of the aircraft station licence and in the following circumstances– (a) when sending is necessary to ensure the safety of any aircraft or of persons on board aircraft; Civil Aviation 233 (b) when sending is necessary in order to comply with the instructions contained in Chapters III, IX, XI, XVI, XIX, XX and XXIII to XXVIII inclusive, of “Civil Aviation Communications Handbook”; (c) when sending is required by the procedure prevailing on the route on which the aircraft is flying; or (d) in accordance with the special permission in writing given by the Governor.