Road train over 25 meters long

According to applicable size limits standards in Québec, the prescribed maximum length for a road train is 25 meters. However, driving a road train with a length exceeding 25 meters can be authorized based on the conditions set out in the Special Road Train Operating Permits Regulation.

The framework set out in this regulation aims to ensure road user safety. The road trains targeted by this regulation generally consist of a road tractor hauling two semi-trailers, each of which can be up to 16.2 meters long. This road train configuration is used for the transportation of high volume and low mass loads.

Normative framework

Section 463 of the Highway Safety Code (Chapter C-24.2) prohibits the driving of outsized vehicles on public roads. However, the section stipulates that a special permit may be issued for certain situations.

Section 621 of the Highway Safety Code stipulates that the government can, by regulation, determine the formalities for obtaining a special permit and the conditions attached to such a permit. By virtue of this authority, the government has adopted the Special Road Train Operating Permits Regulation to govern the use of road trains over 25 meters in length.

Target clientele

The Special Road Train Operating Permits Regulation targets operators and drivers of heavy vehicles, shippers and transportation service intermediaries.

General information

The operation of a road train over 25 meters long is authorized on condition that the operator holds a special permit. The use of such vehicles is limited to divided highways and short road sections along these highways.

The rear of the second semi-trailer must be equipped with a sign, as set out in the Special Road Train Operating Permits Regulation. This sign is a pictogram of a black road train on a fluorescent yellow retro-reflective film. It is not required when the vehicle is configured as follows: tractor, semi-trailer and dolly.

It should be noted that the “train routier” sign meeting the specifications in effect prior to July 17, 2014, can no longer be used as of January 17, 2016.

The total loaded mass limit is 67,500 kg. The axle categories and axle weight limits are determined by the Vehicle Load and Size Limits Regulation. This is true for height and width limits. This combination of vehicles is therefore outsized only in terms of length and total loaded mass.

The driver must have at least five years’ experience driving a combination of road vehicles and hold a driver’s licence with a “T” endorsement. The maximum speed allowed is 90 km/h.

The special permit is issued for a period of three or nine months. It is forbidden to operate these road trains in the months of December, January and February, as well as on Sundays and on holidays. The operation of these road trains is also subject to other conditions.

Cost of permits

The cost of a special road train operating permit varies depending on the desired term of validity.

Number of monthsCost
3 months or less$164.00
More than 3 months$252.00

Latest developments / News

Special permit management system (GPM)

Since February 11, 2019, applications for special road train operating permits must be made exclusively through the Ministère’s website, using the special permit management system (GPM).

The GPM system is a fully transactional online tool through which the Ministère issues special permits to applicants.

Holders of special road train operating permits will no longer receive renewal notices. All renewal applications must now be subject to a new permit application using the GPM system.

Operating road trains over 25 meters long in the winter

2018-2019 demonstration project

The Ministère is extending the demonstration project allowing the operation of road trains over 25 meters long in the winter (December to February). This project allows the operation of this combination of vehicles on the roads covered by the Special Road Train Operating Permits Regulation under certain additional conditions aiming to ensure road user safety.

The main conditions of the project are detailed in the Info-camionnage newsletter of November 1, 2018, available in the “Documentation” section below.

Legal references


Info Camionnage newsletter