Quebec · CDL Study Guide · Part 8 · Chapters 64–73

Special Rules for Certain Types of Cargo +9Quebec · CDL · English

45 topics · Updated 2026-09-17

64.Special Rules for Certain Types of Cargo

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Logs Securement

general

A log is a felled and clean-boled tree trunk or section, whether or not stripped of bark, and includes utility poles and roundwood construction poles. Because tree-trunk logs are cylindrical and tapered, proper securement requires a combination of tiedowns and blocking systems such as posts and bunks.

Key Rules
  • Logs require a combination of tiedowns and blocking systems (posts and bunks)
  • The term log includes utility poles and roundwood construction poles
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Dressed Lumber Securement

general

Bundles of dressed lumber are usually stacked and secured by tiedowns spanning the top. Stacking raises the centre of gravity and reduces tiedown effectiveness because uniform tension is difficult. The Regulation prescribes special standards for bundles stacked more than one layer high.

Key Rules
  • Special securement standards apply to dressed lumber stacked more than one layer high
  • Stacking bundles raises the centre of gravity and reduces tiedown effectiveness
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Metal Coils and Paper Rolls

general

Metal coils are heavy cylindrical objects requiring effective immobilization devices and a minimum number of tiedowns per coil, whether loaded vertically or horizontally. Paper rolls are heavy but fragile cylindrical objects usually transported in vans/containers, with special rules also for flatbed transport.

Key Rules
  • Metal coils require immobilization devices and a minimum number of tiedowns for each coil
  • Paper rolls usually transported inside a van or intermodal container
  • Special standards apply for paper rolls on flatbed vehicles with no sides
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Concrete Pipes and Containers

general

Concrete pipes are cylindrical with a high friction coefficient; large-diameter pipes may go one per vehicle while small-diameter pipes may be braced and stacked, and must be secured against shifting or rolling. Intermodal and roll-on/roll-off containers have special securement standards; intermodal containers use integrated locking devices.

Key Rules
  • Concrete pipes must be secured to prevent shifting or rolling
  • Intermodal containers are secured to chassis/flatbed via integrated locking devices
  • Roll-on/roll-off containers are secured at front and rear on specially adapted vehicles
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Vehicles Transported as Cargo

general

Vehicles carry moving parts (tires, suspension) allowing free vertical movement, so special securement systems are required for vehicles both 4,500 kg or less and greater than 4,500 kg. Flattened/crushed vehicles have dislocated parts that can dislodge, and this category over 4,500 kg includes tracked machinery.

Key Rules
  • Transporting vehicles as cargo requires special securement systems due to free vertical movement of parts
  • Special standards apply to flattened/crushed vehicles because components can dislodge
  • The over-4,500 kg category includes tracked machinery or equipment
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Boulders and Bulk Cargo

general

Boulder securement rules concern boulders over 5,000 kg or over 2 m³; boulders over 100 kg and under 5,000 kg may also be secured under the same provisions. Bulk cargo covers aggregates, liquids, gases and granular products, with special standards for covering bulk in open-top receptacles.

Key Rules
  • Boulder rules apply to those above 5,000 kg or above 2 m³
  • Boulders above 100 kg and below 5,000 kg may use the same provisions
  • Special standards apply for covering bulk cargo carried in totally or partially open receptacles

65.Mandatory Stops at Inspection Stations

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Vehicles Required to Stop at Inspection Stations

general

You must stop at an inspection station when its lights are flashing if driving: a vehicle with GVWR of 4,500 kg or more designed primarily for transporting goods or permanently attached equipment; a tow truck or tool vehicle; or a combination of road vehicles where at least one has GVWR of 4,500 kg or more.

Key Rules
  • Stop at inspection stations with flashing lights if GVWR is 4,500 kg or more
  • Tow trucks, tool vehicles and qualifying vehicle combinations must stop
📋

Inspection Station Exceptions

general

Certain exceptions apply, particularly for trucks with a net weight of 4,000 kg or less registered as a passenger vehicle under vehicle registration regulations, or for road vehicles used for recreational purposes.

Key Rules
  • Trucks 4,000 kg net or less registered as passenger vehicles are exempt
  • Recreational-use road vehicles are exempt from mandatory stops

66.Speed

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Effects of Speed on Driving

general

Speeding and reckless driving are major causes of fatal accidents involving heavy vehicle drivers. Drivers must obey both minimum and maximum speed limits or face penalties.

Key Rules
  • As speed increases, your field of vision shrinks like driving through a narrow tunnel
  • Speeding increases reaction-time distance and braking distance
  • Speeding reduces your ability to make evasive manoeuvres
  • Drivers must obey both minimum and maximum speed limits or face penalties
📋

Effects of Speeding on Driving

general

Speeding and reckless driving are major causes of fatal accidents involving heavy vehicle drivers. Drivers must obey minimum and maximum speed limits or face penalties. Speeding increases stress and produces several dangerous effects on driving ability.

Key Rules
  • Drivers must obey both minimum and maximum speed limits or face penalties
  • As you speed up, your field of vision shrinks, becoming like a narrow tunnel
  • Speeding increases the distance travelled during reaction time and increases braking distance
  • Speeding declines your ability to make evasive maneuvers
📋

Driving Responsibly in Traffic

general

Always bear in mind you are driving a heavy vehicle and drive responsibly at all times, especially in slow city traffic where other users may become aggressive.

Key Rules
  • In slow city traffic, remain calm even when in a hurry
  • Be extra careful, patient and use common sense since some road users may behave recklessly

67.Brakes / Hydraulic Brake Controls (Chapter 3)

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Three Brake System Components

general

All heavy vehicle brake systems, regardless of type (hydraulic or air), include three key brake functions.

Key Rules
  • Service brake reduces speed using the brake pedal
  • Parking brake keeps the vehicle stationary when parked
  • Emergency brake stops the vehicle if service brake fails or trailer breakaway occurs
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Hydraulic Brake Pedal Warning Signs

general

The brake pedal operates the service brake system. An abnormally low brake pedal is a serious warning signal indicating a problem that requires immediate repair.

Key Rules
  • Abnormally low brake pedal is a serious warning signal
  • Pump the pedal rapidly to temporarily increase braking pressure
  • Have brakes repaired right away
📋

Dual Circuit Brake System (Hydraulic)

general

Vehicles have a dual circuit brake system so braking is still possible if one hydraulic circuit fails, but requires harder pedal pressure and results in longer braking distance since only some wheels are braked.

Key Rules
  • Dual circuit allows braking even if one circuit fails
  • Requires harder pedal pressure with a failed circuit
  • Braking distance may be longer
  • Repair brakes before using the vehicle again
📋

Power Brakes

general

Power brakes require little pedal pressure, but if the engine stalls you must apply much greater pressure. Driving is prohibited if the power brake system is not working properly.

Key Rules
  • Power brakes need little pedal pressure normally
  • Stalled engine requires much greater pedal pressure
  • Prohibited to drive with a defective power brake system
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Hydraulic Brake Warning Lights

general

The service brake pressure light and parking brake light indicate the status of the hydraulic and parking brake systems.

Key Rules
  • Service brake pressure light comes on at start-up; if it stays on, hydraulic system may be defective
  • Parking brake light indicates the parking brake is on

68.Braking Distance / How to Bring Your Vehicle to a Stop

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Speed and braking distance basics

general

The faster you drive, the less time to react and the greater the braking distance. Road conditions change quickly and the distance travelled in one second can make the difference between stopping safely and having an accident.

Key Rules
  • Higher speed means less reaction time and greater braking distance
  • One second of travel distance can be the difference between stopping safely and a crash
📋

Load weight and braking

general

Load weight affects braking distance. Brake systems are designed for cargo up to the manufacturer's gross vehicle weight rating (GVWR). Doubling load weight with the same brake pressure means a greater stopping distance. Overloading past the GVWR requires braking power beyond normal capacity — brakes are not designed for the excess, and overheating drums/linings can further increase stopping distance.

Key Rules
  • Brakes are designed for loads up to the manufacturer's GVWR
  • Double the weight requires roughly double the braking power
  • Overloading beyond GVWR can exceed brake capacity and cause overheating and loss of efficiency
📋

Speed's impact on stopping distance

general

Speed has a much greater impact on stopping distance than load weight. Doubling your speed quadruples the stopping distance at the same brake pressure. Slowing just a few km/h greatly reduces stopping distance.

Key Rules
  • Doubling speed quadruples stopping distance
  • Speed affects stopping distance more than load weight
  • Slowing a few km/h greatly reduces stopping distance
📋

Perception and reaction time

general

The estimated time lag between seeing a danger and the brakes beginning to slow the vehicle is about two seconds. You must factor this delay in to brake safely.

Key Rules
  • Estimated perception plus reaction time lag is about two seconds
  • Factor in this two-second delay when judging safe braking
📋

Road conditions and traction

general

Road/pavement conditions are beyond your control and can reduce traction needed for braking. The only sure way to stop within normal braking distance is to reduce speed. Braking distance is at least doubled on ice vs dry pavement: at 60 km/h about 45 m (140 ft) on dry vs 80 m (260 ft) on icy pavement. Slow to below the posted limit and avoid abrupt braking.

Key Rules
  • Reduce speed when traction is poor — it's the only way to stop within normal distance
  • Braking distance is at least doubled on ice vs dry pavement
  • At 60 km/h stopping takes ~45 m on dry pavement and ~80 m on icy pavement
📋

Using gears and brakes to stop

general

Use gears both to speed up and slow down so engine compression helps slow the vehicle and keeps you in the right gear to accelerate again. To slow or stop quickly, combine downshifting with regular brakes (or supplemental brakes where permitted) to reduce brake strain. Once stopped for a while, shift to neutral.

Key Rules
  • Use downshifting and brakes in combination to reduce strain on the brakes
  • Engine compression from gears helps slow the vehicle
  • Shift to neutral when stopped for a while
📋

Avoiding abrupt stops

general

Ensure enough space to stop to protect passengers/cargo. Abrupt braking creates strong forward momentum that can cause loss of control, skidding and severe accidents. Adjust speed, maintain safe distance, look ahead/sides/mirrors, and anticipate stops.

Key Rules
  • Adjust speed and maintain a safe distance (counting seconds)
  • Look ahead, to the sides and in mirrors to stay aware
  • Anticipate where and when you will need to stop to avoid abrupt braking

69.How to Recover from a Skid

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Recovering Based on Skid Cause

general

First determine the skid cause. If caused by overbraking, let up on the brake pedal so wheels turn and grip again. If caused by rapid downshifting, press down on the clutch and use the brake as needed. If caused by overaccelerating, slowly release the accelerator. Change gears as needed considering engine compression and supplemental brakes.

Key Rules
  • Overbraking skid: let up on the brake pedal to let wheels turn and grip
  • Rapid downshifting skid: press down on the clutch
  • Overaccelerating skid: slowly release the accelerator
  • Shift into the appropriate gear once control is recovered
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Maintain Steering Control During a Skid

general

When the rear end veers left or right, turn the steering wheel in the SAME direction the vehicle is skidding to pull it back into line. As the vehicle nears alignment, turn the wheel the opposite way until the front wheels are straight.

Key Rules
  • Turn the steering wheel in the same direction the vehicle is skidding
  • Rear skidding left: steer left, then correct right when nearly in line
  • Rear skidding right: steer right, then correct left when nearly in line

70.Loads Overhanging the Rear of the Vehicle

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Marking Rear Overhanging Loads

general

Loads or equipment overhanging the rear of the vehicle must be marked with a red flag or reflecting panel, and lit at night, with a permit required for large overhangs.

Key Rules
  • Place a red flag or reflecting panel at the rear of any load overhanging by more than one metre
  • At night, install a red light visible from at least 150 metres to the rear and sides
  • If the overhang exceeds two metres, obtain a special travel permit and comply with its special rules
📋

Rear Overhang Marking Rules

general

Loads or equipment overhanging the rear of the vehicle require warning markers and, if excessive, a special permit. These rules alert other road users to the extended load.

Key Rules
  • Place a red flag or reflecting panel on any load overhanging the rear by more than one metre
  • At night, install a red light visible from at least 150 metres to the rear and sides
  • If the overhang exceeds two metres, obtain a special travel permit and follow its rules

71.Skidding, Overturning and Jackknifing

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Common Accidents and Their Causes

combination

The most common accidents with road trains are skidding, overturning and jackknifing, usually occurring when the centre of gravity is too high or too low, or when the road is wet or snow-covered. On dry pavement, skidding usually occurs with a very high centre of gravity.

Key Rules
  • The most common accidents are skidding, overturning and jackknifing
  • These occur when the centre of gravity is too high or too low, or when the road is wet or snowy
  • On dry pavement, skidding usually occurs when the centre of gravity is very high
🚛

Conditions for Overturning and Jackknifing

combination

The danger of overturning is greatest in a curve or during high winds. Jackknifing usually results from braking abruptly on a wet or snow-covered surface with a fairly low centre of gravity. Be alert and reduce speed to prevent these accidents.

Key Rules
  • The danger of overturning is greatest in a curve or during high winds
  • Jackknifing usually results from braking abruptly on wet or snow-covered roads with a low centre of gravity
  • The best prevention is being alert to risky situations and reducing your speed
🚛

Potential Skidding Situations

combination

Skidding, overturning and jackknifing are usually due to driving too fast, momentary distractions, steering errors, or braking abruptly. Miscalculating exit ramp space can cause a skid or overturn. When one wheel skids onto the shoulder it can send the vehicle into the ditch.

Key Rules
  • These accidents are usually due to driving too fast, distractions, steering errors, or abrupt braking
  • One wheel skidding onto the shoulder can send the vehicle into the ditch
  • Stay well within your lane and ensure no wheels cross onto the shoulder
🚛

Tips to Prevent Jackknifing

combination

Jackknifing usually occurs when reducing speed while negotiating a curve or turning. Consider articulation points and adjust speed to road conditions (wind, visibility, traction). When the jackknife angle exceeds 15°, it is the point of no return where regaining control is almost impossible.

Key Rules
  • Jackknifing usually occurs when reducing speed while negotiating a curve or turning
  • Adjust speed to road conditions considering wind, visibility and tire traction
  • When the jackknife angle exceeds 15°, it is the point of no return and control is almost impossible to regain
  • The best prevention is defensive driving: obey speed limits and treat other road users courteously
🚛

Tire Inflation and Brake Adjustment

combination

Improper tire inflation causes accidents. An empty double road train with over-inflated tires can jackknife if braking abruptly, especially on a hot day after long driving. Under-inflated tires can cause loss of control. Improperly adjusted brakes can also cause jackknifing.

Key Rules
  • An empty double road train with over-inflated tires can jackknife when braking abruptly
  • Under-inflated tires (slow leak or fully deflated) can cause loss of control
  • Improperly adjusted brakes can cause you to jackknife
🚛

Common Accident Types and Their Causes

combination

Skidding, overturning and jackknifing are the most common road train accidents, linked to centre of gravity height and road surface conditions.

Key Rules
  • Occur when centre of gravity is too high or too low, or when road is wet or snow-covered
  • On dry pavement, skidding usually occurs with a very high centre of gravity
  • Overturning danger is greatest in curves or during high winds
  • Jackknifing usually results from abrupt braking on wet/snow surfaces with a fairly low centre of gravity
  • Best prevention is to be alert for risky situations and reduce speed
🚛

Potential Skidding, Overturning and Jackknifing Situations

combination

These accidents typically arise from speed, distraction, steering errors and abrupt braking, and from tire and brake problems.

Key Rules
  • Usual causes: driving too fast, distractions, steering errors, or braking abruptly
  • One wheel skidding onto the shoulder can send the vehicle into the ditch — keep all wheels in the lane
  • Over-inflated tires on an empty double road train can jackknife under abrupt braking
  • Under-inflated tires (slow leak, flat) can cause loss of control
  • Improperly adjusted brakes can cause jackknifing

72.Requirements Respecting Driving Days, Hours, and Conditions

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Weather Condition Restrictions for LCVs

combination

For safety, LCVs may only operate when visibility and road surface conditions meet minimum standards, with extra winter rules.

Key Rules
  • May only operate where visibility is clear for 500 m or more
  • May only operate where the roadway is free of snow and ice
  • Additional winter rules apply from December 1 to February 29
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Self-Evaluation Key Facts for LCVs

combination

Key testable facts summarized in the self-evaluation exercises confirm the core LCV rules candidates must know.

Key Rules
  • A special travel permit is required to drive an LCV (a Class 1 licence alone is not enough)
  • The authorized maximum total loaded mass for an LCV is 67,500 kg
  • Maximum authorized speed for an LCV driver is 90 km/h
  • LCVs cannot operate during slippery/snow and ice road conditions
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Prohibited LCV Driving Days and Hours

combination

LCV operation is prohibited on certain days and during peak commuter hours in major cities to reduce congestion and risk.

Key Rules
  • Prohibited from driving on December 26 or statutory holidays
  • Prohibited from travelling on roads where LCVs are not authorized
  • Prohibited on highways Mon-Fri 6:30 a.m.–9:00 a.m. and 3:30 p.m.–6:00 p.m. in the city of Québec
  • Prohibited on highways Mon-Fri 5:30 a.m.–9:30 a.m. and 3:00 p.m.–7:00 p.m. on the island of Montréal
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Transportation of Dangerous Substances in LCVs

combination

LCVs are restricted from carrying larger quantities of dangerous substances that require placarding.

Key Rules
  • Prohibited from transporting dangerous substances if the quantity requires display of safety mark placards

73.5 - Steering

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Power Steering Working Order

general

With the engine running, check the power steering by turning the steering wheel side to side to move the wheels. Some vehicles may need to move forward slightly to check. A steering wheel difficult to turn (mostly when stopped) may indicate power steering is not working.

Key Rules
  • Defect 5.B (major): The power steering is not working
  • A steering wheel hard to turn when stopped may signal power steering failure
📋

Steering Column Solidity

general

Check the solidity of the steering column by trying to move the steering wheel in all directions from the driver's compartment.

Key Rules
  • Defect 5.A (major): The steering column moves from its normal position with danger of separation
  • Defect 5.1 (minor): The steering column moves in relation to its normal position
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Power Steering and Column Operation

general

With the engine running, turn the steering wheel side to side to move the wheels and check power steering operation. Try to move the steering column and steering wheel in all directions to check solidity and adjustment locking.

Key Rules
  • Major defect (5.B): the power steering is not working (a hard-to-turn wheel when stopped is a sign)
  • Major defect (5.A): the steering column/wheel moves from its normal position with danger of separation
  • Minor defect (5.1): the steering column moves from normal position, or an adjustable steering wheel does not remain locked in the selected position
📋

Steering Wheel Adjustment and Solidity

general

Check the adjustment and solidity of the steering wheel by trying to move it in all directions. If the position is adjustable, ensure it remains locked in the selected position.

Key Rules
  • Defect 5.A (major): The steering wheel moves from normal position due to improper mounting on the column, with danger of separation
  • Defect 5.1 (minor): The adjustable steering wheel does not remain locked in the selected position
📋

Power Steering Fluid and Belt

general

Check the power steering pump reservoir fluid level via the gauge/marks. If opening the reservoir, clean around the opening, replace the seal, and close tightly. Also inspect the power steering pump belt if accessible, though most heavy vehicles no longer have belt-driven pumps.

Key Rules
  • Minor defect (5.2): fluid level is below minimum or above maximum prescribed by the manufacturer
  • Minor defect (5.3): the power steering pump belt is cut; if cut enough to hamper power steering operation it becomes a major defect
📋

Power Steering Pump Reservoir Fluid Level

general

Check the power steering fluid level in the engine compartment by viewing the gauge or marks on the reservoir. If the reservoir must be opened, clean around the opening, reposition any seal, and close the cover tightly.

Key Rules
  • Defect 5.2 (minor): The fluid level is lower than the minimum or higher than the maximum prescribed by the manufacturer
  • Check the fluid level using the gauge or marks; take precautions if opening the reservoir
📋

Power Steering Pump Belt

general

Check the condition of the power steering belt in the engine compartment if accessible. Most heavy vehicles no longer use belt-driven power steering pumps.

Key Rules
  • Defect 5.3 (minor): The power steering pump belt is cut
  • If the belt is cut enough to hamper power steering working order, it becomes a major defect

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All chapters

← Back to the Quebec study guide 1. Habits You Must Develop +52. Hitching and Unhitching a Tractor and a Semi-Trailer +63. Circle Check of a Vehicle: School Buses +74. 19 - Pneumatic Brake System +65. 2 - Frame and Cargo Body +126. Spring Thaw Restrictions +107. Driving a Double Road Train +109. Highway Carrier Monitoring +1010. The Most Popular Brake System (Chapter 4: Pneumatic/Air Brake Systems) +711. Vehicles Subject To and Exempt From the Circle Check +1112. Appendix – Lists of Defects: List 1 – Heavy Vehicles +913. Low Air Pressure Indicator & Service Brake Pressure Gauge (Chapter 4) +1314. Other Parts — Reservoirs, Compressor & Chambers (Chapter 4) +1415. Driving Downhill +1216. Supplemental Brakes +1317. Steering Wheel +1418. How the Parking Brake Works (Chapter 4) +1019. Components to Inspect +1420. Appendices – List 1: Pneumatic Brake System +10

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