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

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 dates for 2018 (Updated April 18)

Zone 1

From Monday, March 5 (00:01) to Friday, May 4 (23:59)

Zone 2

From Monday, April 2 (00:01) to Friday, May 18 (23:59)

Zone 3

From Monday, April 23 (00:01) to Friday, June 22 (23:59)

Depending on the changes in weather conditions, the start and end of the load restriction period 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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