Heavy Vehicles

Preventative Maintenance Program (PMP)

Heavy vehicle owners may have their preventative maintenance program (PMP) recognized to be exempted from mandatory periodic mechanical inspections.

In brief

Under the Highway Safety Code, owners of certain vehicles, such as 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., are required to have their vehicles undergo mandatory periodic mechanical inspections.

Owners may implement a PMP and have it recognized by us to no longer have to submit their vehicles to a mandatory inspection. It is the owner's choice whether to do so.

Usefulness of a PMP and how it works

A PMP is an effective way of ensuring that vehicles remain safe at all times for all road users.

Vehicle owners with a registered PMP may do their own servicing or contract the work out to a third party, but they are responsible for seeing that the work is done correctly and at the proper intervals.

During preventative maintenance

Preventative maintenance allows mechanics to carry out inspections and make changes or adjustments.

If the mechanic detects an anomaly that may lead to the improper working order of a component before the next servicing, he or she must immediately make the necessary repairs, changes or adjustments, or plan to do so before the next servicing.


A PMP does not release owners of the requirement to maintain their vehicles in good condition and other legal obligations.

How to have a PMP recognized

  1. Step 1 – Carefully read the Guide de reconnaissance d'un programme d'entretien préventif (PDF, 1.1 MB)This file does not meet Web accessibility standards. (in French only)
  2. Step 2 – Fill out the forms
  3. Step 3 – Send the documents to your local Service du contrôle routier

How to implement a PMP

Once your PMP has been recognized, you have obligations and responsibilities to meet, including:

  • making sure your mechanics are qualified
  • affixing compliance stickers on your vehicles
  • filling out and keeping the maintenance sheets
  • making major and minor repairs on your vehicles
  • respecting the mechanical maintenance interval schedule
  • keeping records

For more information on the PMP

Contact your local Service du contrôle routier.