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Government of Ontario's Drive Clean Program requires emission testing done for vehicles. Your vehicle will require an emission test if:
Your vehicle is a heavy diesel commercial motor vehicle with a registered gross weight over 4,500 kilograms, such as a large truck or bus and the vehicle is:

You will receive a registration renewal notice in the mail that will indicate whether or not your vehicle needs an emissions test.

At Johns United Auto Clinic, we perform safety and emission testing according to the strict standards set out by the government. Bring in your vehicle to us if you have received a notice in the mail to complete the emissions test and be compliant on the road.