Alberta Class 1–4 overview

Alberta Class 1–4: Size, weight and cargo securement

Width, height and length limits, permits for oversize or overweight loads, NSC Standard 10 cargo securement, flags and lights on projecting loads, and annual truck inspections.

  • 18 questions
  • Topic drill
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Size, weight and cargo securement · Question 1Score 0/0

You need to move an overweight load. What must you get?

Study reference: Commercial Driver's Guide (Spring 2023), Ch. 2 & 4 Cargo securement; size and weight restrictions — NSC cargo securement, Size and weight restrictions, Important information

All 18 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

  1. You need to move an overweight load. What must you get?

    1. Nothing if you drive at night
    2. A signed letter from the shipper
    3. A special permit
    4. A police escort and nothing else
  2. Who can be fined when cargo is not properly secured?

    1. Driver, carrier or shipper
    2. Only the driver
    3. Only the vehicle owner
    4. Only the carrier
  3. A load shifts in the trailer enough to affect the unit's stability. Under the securement rules, this means:

    1. The rules allow it if nothing falls off
    2. The cargo was not properly secured
    3. Only the shipper is responsible
    4. It is legal if the trailer is closed
  4. What is the maximum length of a straight truck?

    1. 12.5 m
    2. 16.2 m
    3. 10.5 m
    4. 14.0 m
  5. You are hauling long logs and must turn at an intersection. What does the guide advise?

    1. Turn faster so the logs swing less
    2. Let traffic behind pass first
    3. Drive straight and turn at the next block
    4. Signal early and cut the corner short
  6. Which standard sets the cargo securement rules adopted in Alberta?

    1. CSA Standard D250
    2. NSC Standard 10
    3. NSC Standard 13
    4. The Highway Traffic Act
  7. What is the maximum overall length for a TAC A, B or C train combination?

    1. 21 m
    2. 25 m
    3. 31 m
    4. 23 m
  8. Which conditions can a special permit for oversized equipment set?

    1. Routes, travel times and equipment
    2. Only the licence class of the driver
    3. Only the maximum speed
    4. Only the permit fee you must pay
  9. What is the maximum height of a commercial vehicle, including its load?

    1. 4.5 m
    2. 4.0 m
    3. 4.15 m
    4. 3.85 m
  10. What is the maximum wheelbase of a truck-tractor?

    1. 5.0 m
    2. 6.2 m
    3. 7.5 m
    4. 12.5 m
  11. What is the longest semi-trailer box allowed?

    1. 16.2 m (53 ft)
    2. 17.4 m (57 ft)
    3. 14.6 m (48 ft)
    4. 18.3 m (60 ft)
  12. Your load extends 1.8 m past the rear of the truck in daylight. What must you attach?

    1. An orange triangle on the load
    2. A red flag, 30 cm square or larger
    3. Nothing below 2 m
    4. A white reflector on the load
  13. At night, what is required on the end of a load that sticks out 1.5 m or more behind the vehicle?

    1. A red light
    2. An amber flashing light
    3. A red flag only
    4. A white light
  14. What is the maximum overall length of a tractor semi-trailer?

    1. 23 m
    2. 27.5 m
    3. 20 m
    4. 25 m
  15. How often must trucks and trailers registered at 11,794 kg or more be inspected under the Vehicle Inspection Program?

    1. Every 12 months
    2. Every two years
    3. Every 24 hours
    4. Every six months
  16. Your truck is 2.3 m wide. What lighting does the width require?

    1. None, since it is still under the 2.6 m maximum
    2. Flashing amber beacons mounted on the cab roof
    3. Amber clearance lights front, red at the rear
    4. White clearance lights all around
  17. From what registered weight must commercial trucks meet the cargo securement rules?

    1. Over 6,000 kg
    2. Over 4,500 kg
    3. Over 11,794 kg
    4. Over 2,300 kg
  18. What is the maximum width of a commercial vehicle in Alberta without a permit?

    1. 2.6 m
    2. 2.05 m
    3. 2.4 m
    4. 3.0 m

Size, weight and cargo securement: key rules to remember

Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗

Cargo securement (p. 23)

  • Cargo on commercial vehicles must be secured to NSC Standard 10, which Alberta adopted in its Commercial Vehicle Safety Regulation.
  • The securement rule applies to commercial trucks registered over 4,500 kg.
  • A carrier must not let a driver operate, and a driver must not operate, a commercial vehicle whose cargo is not contained, immobilized or secured to the standard for that vehicle type.
  • Cargo must not be able to leak, spill, blow off, fall from, fall through or otherwise come loose from the vehicle.
  • Cargo must not shift on or in the vehicle so much that the vehicle's stability or manoeuvrability is affected.
  • If cargo is not properly secured, the driver, the carrier or the shipper can be fined and penalized.
  • NSC Standard 10 is published by the Canadian Council of Motor Transport Administrators (CCMTA).

Weights and permits (p. 40)

  • Weight on any tire, axle or axle group, and gross vehicle weight, must not exceed the Commercial Vehicle Dimension and Weight Regulation (AR 315/2002).
  • Specialized, oversized or overweight equipment needs a special permit whose conditions set routes, days and hours, equipment and other measures.

Size restrictions (p. 40)

  • Maximum width: 2.6 m.
  • A vehicle wider than 2.05 m needs clearance lights: amber at the front, red at the rear.
  • Maximum height: 4.15 m from the ground, including the load.
  • Maximum length of a straight truck: 12.5 m.
  • Maximum truck-tractor wheelbase: 6.2 m.
  • Maximum overall length of a tractor semi-trailer, or a truck and towed trailer: 23 m.
  • Maximum overall length for TAC A, B and C train combinations: 25 m.
  • Maximum semi-trailer box length: 16.2 m (53 ft).
  • Kingpin setback radius: no more than 2.0 m.

Projecting loads (p. 52)

  • A load that reaches or extends 1.5 m or more beyond the rear of the vehicle needs a red flag at least 30 cm square by day.
  • At night the end of such a load needs a red light.
  • Overhanging logs can swing across other lanes when you turn; let traffic behind pass first if possible.

Vehicle Inspection Program (pp. 22–23)

  • Trucks, truck-tractors, trailers and semi-trailers with a registered combined GVW of 11,794 kg or more must be inspected every 12 months.
  • A vehicle that passes gets a Commercial Vehicle Inspection Certificate and a decal.

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