Heavy Vehicles

Load and Size Limits

Owners, operators and drivers must make sure that a heavy vehicle does not exceed standards regarding length, width, height and load limits.

In brief

The Vehicle Load and Size Limits Regulation, which falls under the jurisdiction of the Ministère des Transports, de la Mobilité durable et de l'Électrification des transports (MTMDET), sets forth several standards.

Based on the type of heavy vehicle, these standards set limits regarding:

  • dimensions
  • loads per axle group
  • the total loaded massWeight of a road vehicle or combination of road vehicles including its accessories, equipment and load. of heavy vehiclesA road vehicle having a gross vehicle weight rating (GVWR) of 4,500 kg or more, or a combination of road vehicles having a gross combination weight rating of 4,500 kg or more. The following vehicles are also considered to be heavy vehicles regardless of their GVWR: buses, minibuses, tow trucks, vehicles transporting dangerous substances requiring the display of safety marks. operated on public roads

For more information

Visit the Web site of the MTMDET.

Special travel permits – outsize vehicles

A special travel permit is mandatory to operate a heavy vehicle whose load or size exceeds standards.

It is also mandatory to obtain a special travel permit for road trains longer than 25 metres composed of a road tractor and 2 semi-trailers.

Thaw periods

Authorized loads are reduced during thaw periods.

For more information

Visit the Web site of the MTMDET.