Canadian Aviation Regulations

704.107 (1) An air operator must designate, for each flight, a pilot-in-command or, if the crew includes two pilots, a pilot-in-command and a second-in-command.

(2) An air operator must record the name of the pilot-in-command and, if applicable, the name of the second-in-command who were designated under subsection (1) and must retain the record for at least 180 days after the day on which the flight is completed.