WHO NEEDS ITMost heavy trucks and trailers need an annual inspection
Ontario requires an annual safety inspection for most trucks, trailers and converter dollies—alone or in combination—when the total gross weight, registered gross weight or manufacturer’s gross vehicle weight rating is more than 4,500 kg.
Tow trucks require an annual inspection regardless of weight. Concrete pumps and mobile cranes also require one, except off-road mobile cranes. Some personal-use pickup trucks and trailers qualify for an exemption only when every condition in the official Ontario guidance is met.
Do not rely on appearance alone: compare actual weight, registered gross weight and the manufacturer’s rating. If any applicable measure puts the vehicle combination over the threshold, confirm the inspection requirement with the operator.
VALIDITYThe annual inspection is valid for 12 months
An annual inspection is performed by a licensed technician at a certified DriveON Vehicle Inspection Centre. Ontario Regulation 611 states that the annual inspection sticker remains valid until the end of the twelfth month after the inspection month shown on the sticker.
An annual or semi-annual inspection can also serve as a Safety Standards Certificate for 36 days after the inspection date. That short certificate window does not shorten the annual sticker’s normal 12-month validity.
DRIVER CHECKLISTConfirm these items before dispatch
- Identify every unit. Check the tractor, straight truck, trailer and converter dolly separately.
- Confirm the weight threshold. Review actual gross weight, registered gross weight and the manufacturer’s GVWR.
- Check the inspection evidence. Confirm that required annual inspection information is current and matches the vehicle.
- Review the inspection report. Make sure the operator has dealt with repairs or conditions noted by the inspection facility.
- Complete the daily inspection. An annual inspection does not replace the driver’s required daily inspection.
- Report uncertainty before leaving. Contact dispatch or maintenance if a sticker, report, date, vehicle identity or inspection status is unclear.
WHAT IS INSPECTEDA DriveON safety inspection covers the whole vehicle
Ontario’s inspection standard includes the power train, suspension, brake systems, steering, instruments, lamps, electrical system, body, tires and wheels, and coupling devices. If the vehicle fails, repairs and a reinspection are required before a certificate is issued.
A repaired vehicle may return to the same inspection station for reinspection within 10 days. Extra charges can apply if wheels must be removed to recheck the brakes.
DIESEL EMISSIONSSome heavy diesel vehicles also need an emissions test
A diesel commercial motor vehicle with a registered gross weight over 4,500 kg generally needs an emissions test when it is at least seven model years old and its registration is being renewed. A vehicle older than the current model year can also require a valid test when registered by a new owner.
Keep the programs separate: the annual safety inspection and the emissions test cover different requirements. Confirm both before registration renewal when they apply.
OFFICIAL SOURCESConfirm current Ontario requirements
This is an original plain-language summary. Official Ontario requirements and the licensed inspection facility control if anything differs.
Related Rig Toolbox resources: minor vs major defects, wheel-fastener recheck and interactive pre-trip checklist.
Safety note: This guide does not replace the Highway Traffic Act, regulations, official inspection standards, licensed technicians or your operator’s maintenance program.
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