Canadian Aviation Regulations — 700.28
700.28 (1) An air operator shall not assign a flight duty period to a flight crew member, and a flight crew member shall not accept such an assignment, if the flight duty period exceeds the maximum flight duty period set out in this section. (2) If the average duration of all scheduled flights is less than 30 minutes, the maximum period of a flight duty period that begins during a period set out in column 1 of the table to this subsection is the number of hours set out in column 2, 3 or 4, according to the number of flights scheduled during the flight duty period. TABLE Maximum Flight Duty Period — Average Flight Duration of Less Than 30 Minutes Column 1 Column 2 Column 3 Column 4 Item Start Time of Flight Duty Period 1 to 11 Flights 12 to 17 Flights 18 or More Flights 1 24:00 to 03:59 9 hours 9 hours 9 hours 2 04:00 to 04:59 10 hours 9 hours 9 hours 3 05:00 to 05:59 11 hours 10 hours 9 hours 4 06:00 to 06:59 12 hours 11 hours 10 hours 5 07:00 to 12:59 13 hours 12 hours 11 hours 6 13:00 to 16:59 12.5 hours 11.5 hours 10.5 hours 7 17:00 to 21:59 12 hours 11 hours 10 hours 8 22:00 to 22:59 11 hours 10 hours 9 hours 9 23:00 to 23:59 10 hours 9 hours 9 hours (3) If the average duration of all scheduled flights is 30 minutes or more but less than 50 minutes, the maximum period of a flight duty period that begins during a period set out in column 1 of the table to this subsection shall not exceed the number of hours set out in column 2, 3 or 4, according to the number of flights scheduled during the flight duty period. TABLE Maximum Flight Duty Period — Average Flight Duration of 30 Minutes or More but Less Than 50 Minutes Column 1 Column 2 Column 3 Column 4 Item Start Time of Flight Duty Period 1 to 7 Flights 8 to 11 Flights 12 or More Flights 1 24:00 to 03:59 9 hours 9 hours 9 hours 2 04:00 to 04:59 10 hours 9 hours 9 hours 3 05:00 to 05:59 11 hours 10 hours 9 hours 4 06:00 to 06:59 12 hours 11 hours 10 hours 5 07:00 to 12:59 13 hours 12 hours 11 hours 6 13:00 to 16:59 12.5 hours 11.5 hours 10.5 hours 7 17:00 to 21:59 12 hours 11 hours 10 hours 8 22:00 to 22:59 11 hours 10 hours 9 hours 9 23:00 to 23:59 10 hours 9 hours 9 hours (4) If the average duration of all scheduled flights is 50 minutes or more, the maximum period of a flight duty period that begins during a period set out in column 1 of the table to this subsection shall not exceed the number of hours set out in column 2, 3 or 4, according to the number of flights scheduled during the flight duty period. TABLE Maximum Flight Duty Period — Average Flight Duration of 50 Minutes or More Column 1 Column 2 Column 3 Column 4 Item Start Time of Flight Duty Period 1 to 4 Flights 5 or 6 Flights 7 or More Flights 1 24:00 to 03:59 9 hours 9 hours 9 hours 2 04:00 to 04:59 10 hours 9 hours 9 hours 3 05:00 to 05:59 11 hours 10 hours 9 hours 4 06:00 to 06:59 12 hours 11 hours 10 hours 5 07:00 to 12:59 13 hours 12 hours 11 hours 6 13:00 to 16:59 12.5 hours 11.5 hours 10.5 hours 7 17:00 to 21:59 12 hours 11 hours 10 hours 8 22:00 to 22:59 11 hours 10 hours 9 hours 9 23:00 to 23:59 10 hours 9 hours 9 hours (5) For the purposes of subsections (2) to (4), a flight crew member is considered to be acclimatized if (a) in the case of a time zone difference of less than four hours between local time and the time at the last location where the member was acclimatized, any rest periods required under these Regulations have been provided and the member has spent 72 hours in the same time zone; (b) in the case of a time zone difference of four hours or more between local time and the time at the last location where the member was acclimatized, any rest periods required under these Regulations have been provided and the member has spent 96 hours in the same time zone; or (c) the member has spent 24 hours in the same time zone for each hour of difference between local time and the time at the last location where the member was acclimatized. (6) For the purposes of subsections (2) to (4), positioning is