The line is not a judgment call. It is written in the inspection schedule for your vehicle type, and it decides whether the truck moves.
Key takeaways
A major defect is a condition that the inspection schedule for your vehicle type classifies as major. That sounds circular and it is the whole point: the classification is published, and it is not something a driver, a dispatcher or a shop foreman decides in the moment. Ontario is explicit that the driver must inspect each applicable item on the schedule, and that the inspection schedule lists the components and systems that require inspection and shows the conditions that would result in a “major” or “minor” defect.
What the two classifications oblige you to do is different, and that difference is the reason to know which one you are looking at:
The inspection schedules are provincial instruments, but they are not provincial inventions. They descend from the National Safety Code, a set of sixteen standards developed by the member jurisdictions of the Canadian Council of Motor Transport Administrators, of which Standard 13 covers Trip Inspection and Standard 11 covers Maintenance and Periodic Inspection. As CCMTA puts it, all provinces and territories use the Code as the cornerstone of their commercial vehicle regulatory framework, with standards either adopted by reference into jurisdictional regulation or mirrored in provincial and territorial laws.
The practical consequence for a carrier running in more than one province is reassuring and incomplete at the same time. The framework is common; the instrument you are inspected against is the one in force where you are. Carry the schedule that matches your vehicle type — Ontario requires the driver to carry and produce an inspection schedule based on the vehicle, as well as a corresponding valid inspection report.
British Columbia publishes its list in the regulation itself, which makes it a useful reference even for carriers based elsewhere. The pre-trip inspection under section 37.60 of the Motor Vehicle Act Regulations requires the driver or a person specified by the carrier to satisfy themselves that the vehicle is in safe operating condition by inspecting, at least, the service brakes including trailer brake connections and brake adjustments, the parking brake, the steering mechanism, lighting devices and reflectors, tires, horn, windshield wipers, rear vision mirrors, coupling devices, wheels and rims, emergency equipment and load securement devices.
The same regulation sets the rhythm: the inspection is performed daily before the first trip of the day, and on a multi-day trip it must be carried out on the second and every subsequent day no later than the first rest stop. At the end of the final trip of the day the driver must inspect the vehicle and record in the trip inspection report defects observed as a result of the inspection or while operating the vehicle. That last clause is the one drivers forget: things noticed while driving belong on the report, not in a conversation.
A finding that is not written down did not happen. British Columbia specifies the contents: a legible written trip inspection report prepared before driving the vehicle for the first time in a day, stating the plate, the unit number or trailer number where applicable, any defect in the operation of each listed item, any other defect that may affect safe operation, or a statement that no defect was found — plus the date and the signature. The driver must have the current report in their possession and produce it to a peace officer on request.
Two habits follow. Record the unit and trailer numbers every time, because that is what later makes a trailer’s defect history reconstructable. And record “no defect” explicitly rather than leaving the form blank — a blank form is indistinguishable from an inspection that never happened.
Ontario’s enforcement position is stated in three escalating steps, and the numbers are worth knowing before a driver has to make a decision at the side of a highway.
The absolute liability point deserves emphasis in a defect conversation, because it removes the argument. There is no version of a wheel separation where the explanation helps.
Worked example: the marker lamp and the brake adjustment
A driver leaving a yard near Cambridge finds two things on the walk-around: a marker lamp that is out, and a brake he thinks may be out of adjustment. He calls dispatch and asks whether he can run.
The wrong version of this conversation is dispatch deciding. The right version takes ninety seconds: the driver reads both conditions against the inspection schedule for that vehicle type, which is in the cab because Ontario requires him to carry it. The schedule states the conditions that make each finding major or minor.
The lamp is recorded on the inspection report, reported to the operator, and the operator is obliged to repair it — the classification decides whether that repair has to happen before the truck moves. The brake is the one that matters, because brake adjustment is on the list of items the walk-around covers, and if the schedule classifies the condition as major, the vehicle cannot be operated until it is repaired.
The carrier changed one thing after this trip. Dispatch is no longer allowed to answer the question “can I run?”. Dispatch answers “what does the schedule say?”, and if the driver cannot resolve it against the schedule, the unit does not move and the shop is called. That rule costs the occasional load. It has never cost an impoundment.
A defect is not closed when it is reported; it is closed when it is repaired and the repair is recorded. Ontario is direct that the operator is required to repair any defects that do not meet the performance standards, and in British Columbia the vehicle owner must keep a record of every replacement and repair made following each inspection for the last three years of ownership and six months after disposal.
In practice this is where small carriers fail an audit — not on the inspection reports, which drivers generally complete, but on the missing link between a reported defect and the work order that answers it. A work order workflow for a small shop is the fix, and maintenance records an audit asks for is what the auditor will ask to see.
Read the schedule rather than a general answer, including one from us. The classification of any particular condition depends on which lamp, how many, and the vehicle type — which is exactly why Ontario requires the driver to carry the inspection schedule for the vehicle rather than to memorise a list. Any article that gives you a definitive answer without knowing your schedule is guessing.
Not on the basis of the daily inspection rule. Ontario states that with a major defect the vehicle cannot be operated and must be repaired before being driven. Anything else — a tow, a permit, a mobile repair — is a separate arrangement, and dispatch should treat “drive it in carefully” as an instruction that creates liability.
In Ontario it must be completed up to 24 hours before driving, and where no defect or a minor defect is recorded the inspection is valid for 24 hours. A major defect ends the validity, because the vehicle cannot be operated until repaired.
Ontario describes daily inspections as completed by the driver or other person on behalf of the operator, and British Columbia allows the driver or a person specified by the carrier. Delegating it does not delegate the consequence — a driver may not drive without the current report in their possession.
Yes. Ontario’s daily inspection requirement applies to trucks, trailers and converter dollies, on their own or in combination where the power unit is over 4,500 kg, and British Columbia’s report requires the trailer number to be stated where applicable. Trailers are also where inspection currency quietly lapses — see keeping track of trailers you rarely see.
A short call is enough to review how defects move from your inspection reports into your shop and back out again.
