Canadian Aviation Regulations (SOR/96-433)

602.135 All air traffic control units and flight service stations shall provide aeronautical radiocommunication services in English.

602.136 Subject to sections 602.137 and 602.138, where an aircraft is equipped with radiocommunication equipment, the pilot-in-command shall ensure that

• (a) a listening watch is maintained on the appropriate frequency; and

• (b) where communications are required, communication is established with an air traffic control unit, flight service station or community aerodrome radio station, as applicable, on that appropriate frequency.

• 602.137 (1) Where there is a two-way radiocommunication failure between the controlling air traffic control unit and an IFR aircraft that is in or has received a clearance to enter controlled airspace, the pilot-in-command shall

  • (a) maintain a listening watch on the appropriate frequency for control messages or further clearance and acknowledge receipt of any such messages, if possible, by any means available;

  • (b) set the transponder to code 7600; and

  • (c) attempt to establish communications with any air traffic services facility or other aircraft, inform the facility or aircraft of the difficulty and request it to relay the information to the last air traffic control unit with which communications had been established.

• (2) Where communications cannot be established with any air traffic services facility, either directly or by relay through an intermediary, the pilot-in-command shall, except where specific instructions to cover an anticipated communications failure have been received from an air traffic control unit, comply with the procedures specified by the Minister in the Canada Air Pilot and the Canada Flight Supplement.

602.138 Where there is a two-way radiocommunication failure between the controlling air traffic control unit and a VFR aircraft while operating in Class B, Class C or Class D airspace, the pilot-in-command shall

• (a) leave the airspace

  • (i) where the airspace is a control zone, by landing at the aerodrome for which the control zone is established, and

  • (ii) in any other case, by the shortest route;

• (b) where the aircraft is equipped with a transponder, set the transponder to code 7600; and

• (c) inform an air traffic control unit as soon as possible of the actions taken pursuant to paragraph (a).

[602.139 to 602.142 reserved]

602.143 No person shall operate an aircraft equipped with two-way VHF radiocommunication equipment unless the equipment is capable of providing communication on VHF frequency 121.5 MHz.

• 602.144 (1) No person shall give an interception signal or an instruction to land except

  • (a) a peace officer, an officer of a police authority or an officer of the Canadian Forces acting within the scope of their duties; or

  • (b) a person authorized to do so by the Minister pursuant to subsection (2).

• (2) The Minister may authorize a person to give an interception signal or an instruction to land if such authorization is in the public interest and is not likely to affect aviation safety.

• (3) The pilot-in-command of an aircraft who receives an instruction to land from a person referred to in subsection (1) shall, subject to any direction received from an air traffic control unit, comply with the instruction.

• (4) The pilot-in-command of an intercepting aircraft and the pilot-in-command of an intercepted aircraft shall comply with the rules of interception set out in the Canada Flight Supplement.