The Ministère des Transports du Québec (MTQ) continues to update the projected dates for the 2015 thaw period in Québec on its website. Carriers are encouraged to check the link below on a regular basis to ensure they have the most up to date information from MTQ as the dates may change (information on this website is only provided in French, however the dates have been translated below and are accurate at the time of posting).
Zone 1: Monday March 23 (00 h 01) to Friday May 22 (23 h 59)
Zone 2: Monday March 30 (00 h 01) to Friday May 29 (23 h 59)
Zone 3: Monday April 6 (00 h 01) to Friday June 5 (23 h 59)