Canadian Aviation Regulations — 700.70
700.70 (1) An air operator shall notify a flight crew member on reserve of the start and end times of the reserve availability period and the location where it will take place no later than (a) 12 hours before the start time of the reserve availability period, if no part of that period falls during the member’s window of circadian low; or (b) 32 hours before the start time of the reserve availability period, if any part of that period falls during the member’s window of circadian low. (2) An air operator shall not change the start time of a reserve availability period of a flight crew member by (a) more than two hours before, or four hours after, the start time that was communicated to the flight crew member under subsection (1); or (b) more than eight hours before or after the start time that was communicated to the member under subsection (1) in any period of 168 consecutive hours, unless the member is provided with two consecutive days free from duty within that period. (3) If the start time of a reserve availability period is changed to a time after 02:00, the air operator shall not assign another reserve availability period to the flight crew member unless the member is provided with two consecutive days free from duty before the start time of that period. (4) An air operator shall not change the start time of a reserve availability period so that it falls in a flight crew member’s window of circadian low unless the air operator notifies the member of the change at least 24 hours before the revised start time. (5) An air operator shall not assign to a flight crew member a reserve availability period that exceeds 14 consecutive hours. (6) An air operator shall provide a flight crew member with a rest period of at least 10 consecutive hours between reserve availability periods. (7) An air operator shall not assign to a flight crew member a reserve duty period that exceeds (a) 18 consecutive hours, if the period begins between 02:00 and 17:59; (b) 17 consecutive hours, if the period begins between 18:00 and 18:59; (c) 16 consecutive hours, if the period begins between 19:00 and 20:59; (d) 15 consecutive hours, if the period begins between 21:00 and 22:59; and (e) 14 consecutive hours, if the period begins between 23:00 and 01:59. (8) Despite subsection (7), an air operator may assign to a flight crew member a reserve duty period of (a) no more than 20 hours, if the flight crew is augmented by one additional flight crew member and a class 1 rest facility or a class 2 rest facility is provided for the member; (b) no more than 22 hours, when the reserve availability period begins between 21:00 and 03:00 at the location where the flight crew member is acclimatized, if the flight crew is augmented by two additional flight crew members and a class 1 rest facility or a class 2 rest facility is provided for each of the members; or (c) no more than 26 hours, when the reserve availability period begins before 21:00 or after 03:00 at the location where the flight crew member is acclimatized, if the flight crew is augmented by two additional flight crew members and a class 1 rest facility is provided for each of the members. (9) If the reserve availability period begins between 02:00 and 05:59 at the location where the flight crew member is acclimatized and the member is not contacted by the air operator during that period, the air operator may extend the reserve duty period by two hours or 50% of the reserve availability period that falls between 02:00 and 05:59, whichever is shorter. (10) An air operator shall not assign to a flight crew member a flight duty period that exceeds the maximum reserve duty period set out in subsection (7) or (8) or the maximum flight duty period set out in section 700.28 , whichever is shorter, unless the air operator (a) provides the member with at least 24 hours’ notice of the assignment before the beginning of the flight duty period; (b) does not provide the notice during the period that begins at 22:3