Canadian Aviation Regulations

705.19 (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 or between two aerodromes if the air operator is authorized to do so in its air operator certificate.