Aircraft Flight Operation Regulations Article 37-2

The minimum rest period immediately before commencing a flight duty period or positioning may not be less than 10 hours.Operator may not schedule a crew member for more than 3 consecutive days of night operations during local time 0200 and 0500 at which flight duty begins.The crew member shall be given a rest period of at least 34 consecutive hours immediately after being released from flight duty if he/she has performed 2 consecutive days of night operations during local time 0200 and 0500 at which flight duty begins.The crew member shall be given a rest period of at least 54 consecutive hours immediately after being released from flight duty if he/she has performed 3 consecutive days of night operations during local time 0200 and 0500 at which flight duty begins.Operator could be free from the conditions set forth in previous 2 paragraphs as long as at least 14 consecutive hours given to crew member after such operations.