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Quebec Frost Laws, Seasonal Load Weight and Speed Restrictions – 2019

For the latest updates, check Quebec Thaw period - official dates


The province of Quebec is divided into three Thaw Zones, each with different starting and ending dates for load limit reductions:

Thaw Zones Map (+ A More Detailed Map PDF)

According to the Ministry of Transportation, spring thaw restrictions are:

Official and target dates for 2019

As of April 26th the last updates were:

Zone 1 (official dates)

  • From Monday, March 25 (00:01) to Friday, May 24 (23:59)

Zone 2 (official dates)

  • From Monday, April 1 (00:01) to Friday, May 31 (23:59)

Zone 3

  • From Monday, April 15 (00: 01) to Friday, June 14 (23:59)

Please note that the target dates represent the most likely start and end dates of the thaw period for each of the three zones. Depending on the changes in weather conditions, these dates may be moved ahead or postponed.

For most recent info check https://www.transports.gouv.qc.ca/en/camionnage/degel-periode-restrictions-charges/Pages/periode-degel.aspx

For restrictions refer to "Québec Vehicle Load and Size Limits Regulation - Highway Safety Code"

E.g. The load limit of an axle or combination of axles, in a normal period or in a period of thaw or rain, belonging to a class in Schedule B is as follows: http://legisquebec.gouv.qc.ca/en/ShowDoc/cr/C-24.2%2c%20r.%2031?langCont=en#se:14

Examples of Spring Weight Restrictions for Quebec

Reduced tandem axle weight of 15,500 kg

Down from 18,800 kg

Reduced tridem axle weight for 2.4m -
< 3m axle spread of 18,000 kg

Down from 21,000 kg

Reduced tridem axle weight for 3m -
< 3.6m axle spread of 21,000 kg

Down from 24,000 kg

Reduced tridem axle weight for 3.6m - 3.7m axle spread of 22,000 kg

Down from 26,000 kg

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