Ontario Class A Commercial cheat sheet

Daily pre-trip inspection covers 13 items under Ontario Regulation 199/07: brakes and air systems, steering, lights, tires, wheels and rims, mirrors, windshield and wipers, horn, exhaust, fuel system, coupling devices, safety devices, and load security.

Air brake static leak test: charge the system to governor cut-out, stop the engine, release the parking brake, and hold the service brake fully applied for one minute; pressure loss must not exceed 4 psi (27 kPa) on a single vehicle.

Low-air warning must activate before pressure drops below 60 psi (414 kPa); the spring parking brakes must apply automatically when pressure falls to roughly 20-45 psi, engaging between 20 and 45 psi.

Governor cut-out is typically 120-145 psi and cut-in about 20-25 psi lower; a system that fails to build pressure to at least 100 psi in a reasonable time indicates a compressor or leak fault.

Compressor build-up test: with engine at operating speed and system drained, pressure should rise from 85 to 100 psi within 45 seconds on a single unit (about 90 seconds for a tractor-trailer combination).

Slack adjuster check: with the brakes released, pull the slack adjuster by hand; movement at the push rod should not exceed about 1 inch (25 mm) of free stroke.

Tire minimum tread depth for commercial vehicles is 3.2 mm (4/32 in) on steering axle tires and 1.6 mm (2/32 in) on all other positions; check for cuts, bulges, exposed cord, and proper inflation.

Pre-trip must be completed within the 24 hours before operating and the inspection report retained; the driver signs certifying the vehicle is in safe condition, and defects affecting safety must be repaired before use.

Ontario and federal limits for extra-provincial carriers: no driving after 13 hours of on-duty time in a day, no driving after 14 hours on duty, and a minimum 8 consecutive hours off duty before the next day begins.

Daily driving limit is 13 hours; a driver must not accumulate more than 70 hours of on-duty time in 7 consecutive days (or 120 hours in 14 days for cycle 2), with mandatory reset requirements.

A 30-minute break is required after 8 hours of on-duty time before any further driving; the break must be at least 30 consecutive minutes off duty, sleeper berth, or on-duty not driving.

Daily log must record: date, start and end times, total on-duty and off-duty hours, cycle hours, vehicle licence plate, odometer readings, carrier name, and driver signature.

Logs must be completed in the time zone of the driver's home terminal and current to the last change of duty status; retain logs and supporting documents for at least 6 months.

Electronic logging devices (ELDs) are mandatory for federally regulated extra-provincial carriers; Ontario-only operators may still use paper logs, but must carry a blank log for the current day and previous 14 days.

A driver must not drive if fatigued or if the daily log shows the limit has been reached; a special permit or emergency declaration may extend hours only under specific regulatory conditions.

Out-of-service thresholds: driving beyond limits, falsifying logs, or failing to keep current records can trigger a 24-hour out-of-service order under the North American roadside inspection standard.

Minimum aggregate working load limit (WLL) of tiedowns must equal at least 50% of the cargo weight; each tiedown is rated at its marked WLL, and the sum of all tiedowns must meet or exceed the requirement.

Cargo must be secured to prevent shifting in any direction; forward restraint must withstand 0.8 g deceleration, rearward 0.5 g, and lateral 0.5 g of the cargo weight.

At least one tiedown is required for articles up to 1.52 m (5 ft) long and 500 kg; two tiedowns for articles 1.52-3.04 m (5-10 ft); and additional tiedowns every 3.04 m (10 ft) beyond that.

Tiedowns must be attached to the vehicle's securement points, not to the cargo itself, and must be tight and free of knots, wear, or damage; edge protection is required where tiedowns contact sharp edges.

Commodity-specific rules apply: logs require at least two tiedowns and end barriers; dressed lumber and building products have their own minimum tiedown counts; metal coils require specially rated tiedowns and blocking.

Loads must not extend more than 1.5 m (5 ft) beyond the front of the vehicle, and rear overhang must not exceed 35% of the wheelbase or 4.65 m (15.3 ft), whichever is less, unless a permit is held.

Weight limits on Ontario highways: maximum gross vehicle weight of 63,500 kg on designated highways; steer axle limit 5,500 kg; tandem axle group 17,000 kg; tridem 24,000 kg (varies by configuration and permit).

Loads that could shift or fall must be covered or secured; spillage of gravel, sand, or similar materials must be prevented, and loads must be checked within the first 80 km and every 240 km thereafter.

Ontario maximum legal dimensions without a permit: width 2.6 m (8 ft 6 in), height 4.15 m (13 ft 8 in), and overall length for a tractor-trailer combination of 23 m (75 ft) on designated highways.

Overweight or oversize movements require an Ontario oversize/overweight permit; permits specify route, axle weights, escort requirements, and time-of-day restrictions, and must be carried in the vehicle.

Maximum gross vehicle weight on Ontario highways is 63,500 kg; axle group limits depend on spacing (spread) between axles, with wider spreads allowing higher group weights.

Steer axle maximum is 5,500 kg; single axle 9,000 kg; tandem axle group 17,000 kg; tridem axle group 24,000 kg, subject to tire and manufacturer ratings.

Height over 4.15 m requires a permit and often a high-load escort; width over 2.6 m up to 3.7 m requires a permit and may require pilot vehicles depending on width and route.

Overhang limits: front overhang must not exceed 1.5 m beyond the front bumper; rear overhang must not exceed 35% of the wheelbase or 4.65 m, whichever is less, unless permitted.

Permit conditions include daylight-only travel for some loads, no travel during holiday periods, and specific escort vehicle requirements for loads exceeding 3.7 m width or 4.6 m height.

Weigh scales and inspection stations: drivers must stop when directed by a sign or officer; bypassing a scale or failing to comply can result in charges and out-of-service orders.

Pre-coupling check: verify the fifth wheel is greased and locked open, the trailer kingpin is undamaged, the trailer brakes are set, and the landing gear is at the correct height for the tractor.

Coupling sequence: back under the trailer, engage the fifth wheel, perform a tug test (pull forward gently in low gear with trailer brakes set), then visually confirm the locking jaws are closed around the kingpin.

After coupling, connect the air lines (red emergency to red, blue service to blue) and electrical cord, secure the lines to prevent chafing, raise the landing gear fully, and release the trailer parking brake.

Uncoupling sequence: set the trailer brakes, lower the landing gear to firm ground, chock the wheels if needed, disconnect the air lines and electrical cord, then pull the tractor forward slowly to release the fifth wheel.

Tug test is mandatory and must be followed by a visual check; a false coupling can allow the trailer to separate under load, causing a runaway trailer and serious injury.

Trailer air lines must be supported and not dragging; a dragging line can be severed, causing a trailer brake lock-up or loss of emergency braking.

When backing, use GOAL (get out and look) and a spotter where available; mirrors and rear-view cameras do not eliminate blind spots behind the trailer.

Off-tracking: the rear wheels of a tractor-trailer follow a tighter path than the front; swing wide on turns and allow extra clearance for the trailer's rear wheels.

Stopping distance for a loaded tractor-trailer at 100 km/h can exceed 100 m; maintain a following distance of at least 4-6 seconds in good conditions and double it in rain, snow, or ice.

Blind spots (No-Zones) extend up to 6 m (20 ft) ahead of the cab, 9 m (30 ft) behind the trailer, and along both sides; never linger beside a truck's cab or trailer.

Large vehicles need more time and space to turn; a right turn may require swinging left first, so drivers should not pass on the right side of a turning truck.

Hazard perception: scan 12-15 seconds ahead, check mirrors every 5-8 seconds, and identify escape routes before entering intersections or merging lanes.

Speed management on downgrades: select a lower gear before descending and use engine braking; continuous service brake application can cause brake fade and loss of control.

Passing a heavy vehicle requires more time; ensure a clear gap, signal early, and do not cut in front of a truck because its stopping distance is much longer than a car's.

Railway crossings: commercial vehicles carrying passengers or dangerous goods must stop at all crossings unless exempted; other trucks should stop when signals or gates indicate a train.

Adverse weather: reduce speed, increase following distance, use headlights, and be prepared for crosswinds that can push a high-sided trailer sideways.

Annual safety inspection: commercial vehicles require a valid inspection certificate (yellow sticker) renewed every 12 months; the certificate must be carried and produced on demand.

Brake system inspection includes: air pressure build-up, static leak test, low-air warning, spring brake application, slack adjuster stroke, brake chamber condition, drum/disc wear, and air line condition.

Emergency brake application: if service brakes fail, use the engine brake, downshift progressively, apply the parking/emergency brake gradually, and look for a runaway lane or safe off-road area.

Tire blowout: hold the steering wheel firmly, avoid hard braking, ease off the accelerator, and steer to a safe stop; sudden braking can cause loss of control, especially on a steer tire.

Fire emergency: stop, shut off the engine, evacuate occupants, call 911, and use a fire extinguisher only on a small fire; do not open the engine cover if flames are visible.

Jackknife prevention: avoid sudden braking on slippery surfaces, keep the tractor and trailer aligned, and use engine braking to slow down; if a jackknife begins, release the brakes and steer into the skid direction.

Post-trip inspection: complete within 24 hours, record defects, and report major defects to the carrier immediately; the vehicle must not be operated with a major defect until repaired.

Roadside inspection levels: Level I (full inspection), Level II (walk-around), Level III (driver/vehicle), Level IV (special), and Level V (vehicle only); drivers must comply and produce documents.

Air brake system components: compressor, governor, reservoirs, foot valve, relay valve, quick-release valve, slack adjusters, brake chambers, and spring parking brakes.

Daily air brake check sequence: drain reservoirs, build pressure to governor cut-out, perform static leak test, test low-air warning, test spring brakes, and test service brakes at low speed.

Brake fade occurs when drums or discs overheat from continuous use; symptoms include a soft or low pedal, longer stopping distance, and a burning smell; allow brakes to cool and use a lower gear.

Emergency stopping on a downgrade: downshift to a lower gear, use engine braking, apply brakes in short controlled applications, and never ride the brakes continuously.

Pre-trip brake test: with the engine running and system charged, apply the service brake and hold; the vehicle should not move, and the brake pedal should feel firm, not spongy.

Tire and wheel inspection: check for cracks, missing lug nuts, rust streaks around lug nuts (indicating loose nuts), and proper tire pressure; a loose wheel can separate and cause a crash.

Load securement inspection during trip: check tiedowns and cargo within the first 80 km and every 240 km, and after any emergency stop or rough road section.

Incident reporting: report collisions, cargo spills, and major defects to the carrier and, where required, to the Ministry of Transportation; keep records for the required retention period.

Air brake system components: compressor, governor, reservoirs, foot valve, relay valve, quick-release valve, slack adjusters, brake chambers, and spring parking brakes.

Daily air brake check sequence: drain reservoirs, build pressure to governor cut-out, perform static leak test, test low-air warning, test spring brakes, and test service brakes at low speed.

Brake fade occurs when drums or discs overheat from continuous use; symptoms include a soft or low pedal, longer stopping distance, and a burning smell; allow brakes to cool and use a lower gear.

Emergency stopping on a downgrade: downshift to a lower gear, use engine braking, apply brakes in short controlled applications, and never ride the brakes continuously.

Pre-trip brake test: with the engine running and system charged, apply the service brake and hold; the vehicle should not move, and the brake pedal should feel firm, not spongy.

Tire and wheel inspection: check for cracks, missing lug nuts, rust streaks around lug nuts (indicating loose nuts), and proper tire pressure; a loose wheel can separate and cause a crash.

Load securement inspection during trip: check tiedowns and cargo within the first 80 km and every 240 km, and after any emergency stop or rough road section.

Incident reporting: report collisions, cargo spills, and major defects to the carrier and, where required, to the Ministry of Transportation; keep records for the required retention period.

Air brake system components: compressor, governor, reservoirs, foot valve, relay valve, quick-release valve, slack adjusters, brake chambers, and spring parking brakes.

Daily air brake check sequence: drain reservoirs, build pressure to governor cut-out, perform static leak test, test low-air warning, test spring brakes, and test service brakes at low speed.

Brake fade occurs when drums or discs overheat from continuous use; symptoms include a soft or low pedal, longer stopping distance, and a burning smell; allow brakes to cool and use a lower gear.

Emergency stopping on a downgrade: downshift to a lower gear, use engine braking, apply brakes in short controlled applications, and never ride the brakes continuously.

Pre-trip brake test: with the engine running and system charged, apply the service brake and hold; the vehicle should not move, and the brake pedal should feel firm, not spongy.

Tire and wheel inspection: check for cracks, missing lug nuts, rust streaks around lug nuts (indicating loose nuts), and proper tire pressure; a loose wheel can separate and cause a crash.

Load securement inspection during trip: check tiedowns and cargo within the first 80 km and every 240 km, and after any emergency stop or rough road section.

Incident reporting: report collisions, cargo spills, and major defects to the carrier and, where required, to the Ministry of Transportation; keep records for the required retention period.