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Permitted dimensions in Quebec

Maximum dimensions and overhangs authorized by an OS/OW permit, including how rear overhang is measured.

80 facts, each with the passage it comes from, quoted from 3 official sources.

Where to apply

Where an application for Permitted dimensions is submitted in Quebec.

  • Online · Ministère des Transports

    Système de gestion des permis spéciaux ministériels (GPM)

    gpm.transports.gouv.qc.ca (opens in a new tab)

    The GPM system is accessible 24 hours a day, 7 days a week. To create a “carrier” customer account or to apply through an authorized representative, the registre d’identification (NIR) number of the Commission des transports du Québec or the certificat d’aptitude à la sécurité (CAS) number will be required. The start date of validity must be the same day or within the next three months.

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Facts

6 topics

Maximum rear overhang (m) (Measures)

The maximum distance by which the load or equipment may project rearward beyond the rear of the vehicle.

  • 4 m13′ 1.5″Class 1, any other load or equipment
  • 4 m13′ 1.5″Class 1, other
  • 6 m19′ 8″Class 1, timber in lengths
  • 6 m19′ 8″Class 1, trees in lengths

Maximum height (m) (Measures)

The maximum overall height, including load and equipment, allowed under the permit.

  • 4.3 m14′ 1.5″Class 1, general category
  • 4.3 m14′ 1.5″Class 1, general category
  • 4.3 m14′ 1.5″Class 1, general permit
  • 5 m16′ 5″Class 1, specific category

Maximum width (m) (Measures)

The maximum overall width, including load and equipment, allowed under the permit.

  • 4.4 m14′ 5″Class 1, general category
  • 4.4 m14′ 5″Class 1, general category
  • 4.4 m14′ 5″Class 1, general permit
  • 5 m16′ 5″Class 1, specific category

Maximum length (m) (Measures)

The maximum overall length, including load and equipment, allowed under the permit.

  • 40 m131′ 3″Class 1, any combination of road vehicles covered by a specific permit
  • 17 m55′ 9.5″Class 1, any other motor vehicle
  • 27.5 m90′ 2.5″Class 1, combination of 2 road vehicles
  • 30 m98′ 5″Class 1, combination of 3 road vehicles consisting of a tractor, a towed diabolo and a semi-trailer

Maximum front overhang (m) (Measures)

The maximum distance by which the load or equipment may project forward beyond the front of the vehicle.

  • 2 m6′ 6.5″Class 1, any other road vehicle
  • 4 m13′ 1.5″Class 1, crane and snow removal vehicle
  • 4 m13′ 1.5″Class 1, crane and snow removal vehicle
  • 4 m13′ 1.5″Class 1, cranes and vehicles used for snow removal

Rear overhang measurement basis (In words)

The reference point from which rear overhang is measured, such as from the chassis of the semi-trailer to the rear extremity of the load or equipment.

measured between the semi-trailer chassis and the rear end of the structure

Class 2

Where these facts come from