Canadian Aviation Regulations

704.14 (1) Subject to subsection (2), every air operator that operates a scheduled air service for the purpose of transporting persons shall operate the service between airports or heliports or between an airport or heliport and a military aerodrome.

(2) An air operator may operate a scheduled air service for the purpose of transporting persons between an airport and an aerodrome other than a military aerodrome or between two aerodromes if the air operator is authorized to do so in its air operator certificate.