Drive Clean

The Heavy Duty Drive Clean program requires large trucks and buses to pass regular emissions tests in order to have their registrations renewed. This applies to diesel-powered vehicles registered anywhere in Ontario and to heavy-duty non-diesel vehicles in the areas of Southern Ontario where light-duty testing is required.

Heavy duty vehicles require testing every year beginning in the fifth calendar year after their model year. As a consumer protection measure, an emissions test is required for an ownership transfer for vehicles with a model year older than the current calendar year.

In 2005, an incentive was introduced to encourage good vehicle maintenance by giving heavy duty diesel vehicles operators the opportunity to have their vehicle tested every two years instead of annually. For more information please refer to the Heavy Duty FAQ page.