Alberta · CDL Study Guide · Part 1 · Chapters 1–6

Introduction and Program Objectives +5Alberta · CDL · English

47 topics · Updated 2026-09-17

1.Introduction and Program Objectives

🛑

Skill Objectives for Practical Training

airbrakes

The practical training session teaches drivers to perform an effective pre-trip inspection, determine if s-cam foundation brakes are correctly adjusted, and know how to adjust an s-cam drum brake.

Key Rules
  • Perform an effective pre-trip inspection ensuring proper air brake operation before service
  • Determine correct adjustment on s-cam foundation brakes and know how to adjust an s-cam drum brake
🛑

Knowledge and Skill Objectives

airbrakes

Candidates must understand how a typical air brake system functions, use it safely to maximum advantage, know how the system reacts to failures, and learn operational strategies to safely stop a vehicle after an air system failure. Skill objectives include performing an effective pre-trip inspection, determining if s-cam foundation brakes are correctly adjusted, and knowing how to adjust an s-cam drum brake.

Key Rules
  • Drivers must be able to perform an effective pre-trip inspection before putting a vehicle into service
  • Drivers must determine if s-cam foundation brakes are correctly adjusted and know how to adjust an s-cam drum brake
🛑

Air Brake Program Legal Framework

airbrakes

The Alberta Air Brake Program is mandatory for operators of air brake equipped vehicles since November 1, 1990. Legislation is found in the Alberta Traffic Safety Act and its regulations, and in Air Brake Systems (Standard 121) of Transport Canada's Motor Vehicle Safety Act.

Key Rules
  • The program has been mandatory since November 1, 1990
  • Legislation is located in the Alberta Traffic Safety Act and Transport Canada's Air Brake Systems Standard 121
🛑

Knowledge Objectives of Air Brake Training

airbrakes

The classroom session aims to provide a basic understanding of how a typical air brake system functions, how to use it safely and to maximum advantage, how the system reacts to failures, and operational strategies to safely stop a vehicle after an air system failure.

Key Rules
  • Understand how a typical air brake system functions and how to use it safely
  • Know how an air brake system reacts to various failures and how to safely stop after a failure
🛑

Air Brake Program Mandatory Since 1990

airbrakes

The Alberta Air Brake Program provides training for the safe and efficient operation of air brake systems. Since November 1, 1990 it has been mandatory for operators of air brake equipped vehicles. Legislation is found in the Alberta Traffic Safety Act and Transport Canada's Motor Vehicle Safety Act, Air Brake Systems (Standard 121).

Key Rules
  • Air brake training is mandatory for operators of air brake equipped vehicles since November 1, 1990
  • Legislation is located in the Alberta Traffic Safety Act and Transport Canada Standard 121
🛑

Alberta Air Brake Program Purpose

airbrakes

The Alberta Air Brake Program provides training for drivers to ensure safe and efficient operation of air brake systems. Since November 1, 1990 it has been mandatory for operators of air brake equipped vehicles. Legislation is found in the Alberta Traffic Safety Act and Transport Canada's Motor Vehicle Safety Act (Standard 121).

Key Rules
  • The air brake program has been mandatory since November 1, 1990 for operators of air brake equipped vehicles
  • Legislation regarding air brake systems is in the Alberta Traffic Safety Act and Transport Canada's Air Brake Systems Standard 121
  • The training manual itself has no legal authority
🛑

Purpose of the Alberta Air Brake Program

airbrakes

The Alberta Air Brake Program provides training to ensure the safe and efficient operation of air brake systems. It has been mandatory for operators of air brake equipped vehicles since November 1, 1990. The manual itself has no legal authority; the governing legislation is the Alberta Traffic Safety Act and its regulations, and Air Brake Systems (Standard 121) of Transport Canada's Motor Vehicle Safety Act.

Key Rules
  • The air brake program has been mandatory since November 1, 1990 for operators of air brake equipped vehicles
  • Legal authority comes from the Alberta Traffic Safety Act and Transport Canada Standard 121, not the manual

2.Commercial Driver's Licence Requirements: Class Definitions

🚛

Class 1 Licence Privileges and Age

combination

A Class 1 licence is the highest commercial class in Alberta. The minimum learning or licensing age is 18 years. You may not apply for a Class 1 licence as a probationary (GDL) driver. The holder may operate any motor vehicle or combination of vehicles other than a motorcycle, and Class 6 type vehicles for learning only.

Key Rules
  • Minimum learning/licensing age for Class 1 is 18 years
  • You cannot apply for Class 1 as a probationary/GDL driver
  • Class 1 allows operation of any motor vehicle or combination except a motorcycle
  • A Class 1 licence cannot be obtained without first qualifying for an air brake endorsement
🚛

Class 1 Road Test Vehicle Configuration

combination

To take the Class 1 road test you must provide a tractor-trailer with a specific configuration to demonstrate ability to handle a full commercial combination unit.

Key Rules
  • 13-speed manual transmission required
  • Gross vehicle weight of at least 11,794 kg
  • Full-air brake system on both tractor and trailer
  • Minimum tandem axle tractor and tandem axle trailer
  • Fifth wheel coupling device required
  • Single trailer minimum 48 feet length, minimum 35 feet from kingpin to centre of each rear axle
📋

Class 2 Licence Privileges

general

A Class 2 licence permits operating a bus plus any vehicle a Class 3, 4 or 5 holder may operate. Minimum age is 18 and no probationary applicants. The road test bus must exceed 24 passenger seating capacity. If air brake equipped, driver needs a 'Q' endorsement or air brake course certificate.

Key Rules
  • Class 2 holder may operate a bus and Class 3, 4, 5 vehicles
  • Road test bus must have seating capacity exceeding 24 passengers, excluding operator
  • Air brake 'Q' endorsement required for air brake equipped vehicles
  • Class 1 and 6 vehicles for learning only
📋

Class 3 Licence Privileges

general

A Class 3 licence allows operation of a single motor vehicle with three or more axles, and a three-or-more-axle vehicle towing a trailer with one or more axles (if the trailer has no air brakes). Holders cannot operate vehicles seating more than 15 passengers while carrying passengers, or transport passengers for hire.

Key Rules
  • Class 3 allows single motor vehicle with three or more axles
  • May tow a trailer only if that trailer is not equipped with air brakes
  • Cannot operate vehicle seating more than 15 while transporting anyone other than driver
  • Cannot transport passengers for hire
📋

Class 4 Licence Privileges

general

A Class 4 licence permits operation of a bus with seating not more than 24 (excluding operator), an ambulance, or a taxi, plus Class 5 vehicles. Minimum age is 18 with no probationary applicants.

Key Rules
  • Class 4 allows a bus with seating capacity not more than 24, excluding operator
  • Class 4 permits driving an ambulance or taxi
  • Class 4 road test requires a Class 5 vehicle or bus seating not exceeding 24 passengers
  • Air brake 'Q' endorsement required if the vehicle is air brake equipped

3.Operating a truck-tractor and semi-trailer

🚛

Commercial vehicle size restrictions

combination

Commercial vehicles must comply with maximum dimension limits set by the Commercial Vehicle Dimension and Weight Regulation (AR 315/2002). Exceeding these limits requires a special permit with specific conditions.

Key Rules
  • Maximum width is 2.6 metres; clearance lights required if wider than 2.05 metres (amber front, red rear)
  • Maximum height is 4.15 metres from the ground surface
  • Maximum length is 12.5 metres for a straight truck
  • Maximum wheelbase length is 6.2 metres for a truck-tractor
  • Maximum overall length is 23 metres for a tractor semi-trailer or truck and towed trailer combination
  • Maximum overall length is 25 metres for TAC combinations (A, B and C trains)
🚛

Oversized and overweight permits

combination

Specialized, oversized or overweight equipment requires a special permit that specifies operating conditions to prevent road damage and ensure safety.

Key Rules
  • Permit states the routes you may travel on
  • Permit states the days and hours of travel
  • Permit states the type of equipment that must be used
  • No vehicle may operate if weight on a tire, axle, axle group or gross vehicle weight exceeds regulation limits
📋

Special permits for oversized/overweight loads

general

Specialized, oversized or overweight equipment requires a special permit that will state specific conditions to prevent road damage and ensure safety.

Key Rules
  • A special permit is required for specialized, oversized or overweight equipment
  • Permit conditions state routes, days and hours of travel, and the type of equipment that must be used
  • No vehicle may operate on a highway if weight exceeds what is allowed under the regulation

4.Commercial Driver's Licence Requirements

🚛

Class 1 Licence Privileges and Age

combination

A Class 1 driver's licence permits operation of any motor vehicle or combination of vehicles other than a motorcycle. It also allows learning of Class 6 type vehicles. The minimum learning or licensing age is 18 years, and you may not apply as a probationary (GDL) driver.

Key Rules
  • Minimum learning or licensing age for Class 1 is 18 years
  • Class 1 allows operation of any motor vehicle or combination except motorcycles
  • Cannot apply for Class 1 as a probationary/GDL driver
  • Class 1 holders may operate Class 6 vehicles for learning only
🚛

Class 1 Road Test Vehicle Configuration

combination

To take the Class 1 road test you must provide a tractor-trailer with a specific configuration including a 13-speed manual transmission, a minimum gross vehicle weight, a full-air brake system, tandem axles, and a fifth wheel coupling device.

Key Rules
  • Must have a 13-speed manual transmission
  • Tractor-trailer must have a gross vehicle weight of at least 11,794 kg
  • Full-air brake system required on both tractor and trailer
  • Minimum tandem axle tractor and tandem axle trailer required
  • Fifth wheel coupling device required
  • Single trailer minimum 48 feet long with minimum 35 feet from kingpin to centre of each rear axle
📋

Mandatory Entry-Level Training (MELT)

general

Effective March 1, 2019, anyone wanting a Class 1 or Class 2 licence must complete the Mandatory Entry-Level Training (MELT) program. Successful MELT completion is a prerequisite to taking the Class 1 or Class 2 knowledge test.

Key Rules
  • MELT is mandatory for Class 1 and Class 2 licences
  • MELT completion is required before taking the Class 1 or 2 knowledge test
  • Most Class 1 and Class 2 knowledge test questions come from MELT curriculums
📋

Knowledge Test Requirements

general

To upgrade a licence you must pass a knowledge test based on this guide and the Cars and Light Trucks guide. The test is 30 multiple choice questions requiring at least 25 correct to pass, and stops after six wrong answers.

Key Rules
  • Knowledge test is 30 multiple choice questions
  • Must score a minimum of 25 correct out of 30 to pass
  • Test stops and fails after six questions answered incorrectly
  • Class 1 applicants may be asked questions from any chapter in the guide
🚛

Road Test Pre-Trip Inspection Requirement

combination

Applicants for Class 1, 2 or 3 must perform a pre-trip inspection during the road test, communicating and demonstrating each item. Class 1 also requires demonstrating couple/uncouple procedures and an air brake inspection.

Key Rules
  • Class 1, 2 and 3 road tests require a pre-trip inspection
  • You must point to and describe each item being inspected
  • Class 1 requires demonstrating uncouple/couple procedures
  • Air brake inspection required for air-brake equipped units
  • You may not refer to any notes during the pre-trip
  • If the pre-trip is failed, the road test will not proceed
🛑

Air Brake Endorsement for Class 1

airbrakes

A Class 1 licence cannot be obtained without first qualifying for an air brake endorsement. No driver (other than a learner) may operate a vehicle with full air brakes unless they hold a Class 1 licence or a Q endorsement.

Key Rules
  • A Class 1 licence cannot be obtained without an air brake endorsement
  • Only learners may drive air brake vehicles without a Q endorsement or Class 1
  • Class 1 licence itself satisfies the air brake endorsement requirement
🛑

Air Brake System Definitions

airbrakes

The guide defines three braking types: full air brakes (air to all foundation brakes) require a Q endorsement or Class 1; air-over-hydraulic (combination) also require the endorsement; and air-actuated hydraulic (air assisted, all hydraulic foundation brakes) do NOT require the Q endorsement.

Key Rules
  • Full air brakes send air pressure to all foundation brakes and require Q or Class 1
  • Air over hydraulic braking system requires a Q endorsement or Class 1
  • Air actuated hydraulic braking system does NOT require a Q endorsement
  • Farm single-motor-vehicle drivers do not need a Q endorsement
🚛

Class 1 Licence Requirements and Configuration

combination

A Class 1 licence permits operation of any motor vehicle or combination other than a motorcycle, plus Class 6 vehicles for learning only. The minimum learning/licensing age is 18. You cannot apply as a probationary driver. Specific vehicle configuration must be provided for the road test.

Key Rules
  • Minimum learning/licensing age for Class 1 is 18 years
  • Cannot apply for Class 1 as a probationary (GDL) driver
  • Road test tractor-trailer requires 13-speed manual transmission, GVW of at least 11,794 kg, full-air brakes on tractor and trailer, tandem axles, fifth wheel, and a trailer minimum 48 feet with 35 feet from kingpin to rear axle centre
  • A Class 1 licence cannot be obtained without first qualifying for an air brake endorsement
📋

Class 2 Licence Requirements

general

A Class 2 licence allows operating a bus and any vehicle a Class 3, 4 or 5 holder may operate, plus Class 1 and 6 vehicles for learning only. Minimum age is 18, no probationary applicants.

Key Rules
  • Must provide a bus with seating capacity exceeding 24 passengers (excluding operator) for the road test
  • Air brake 'Q' endorsement required to operate air brake equipped vehicles
  • Minimum learning/licensing age is 18 years and no probationary applicants
📋

Class 3 Licence Requirements

general

A Class 3 licence permits single motor vehicles with three or more axles and towing trailers (with one or more axles if not air-brake equipped), plus Class 5 vehicles. Restrictions apply to passenger transport.

Key Rules
  • Cannot operate a vehicle with seating capacity over 15 while transporting persons other than the driver
  • Cannot transport passengers for hire
  • Must provide a single motor vehicle with three or more axles for the road test (no three-axle recreational vehicles)
  • Drivers of single-motor vehicles registered as farm vehicles do not require an air brake 'Q' endorsement
📋

Class 4 Licence Requirements

general

A Class 4 licence permits a bus with seating capacity not more than 24 (excluding operator), an ambulance or taxi, and Class 5 vehicles, plus Classes 1, 2, 3 and 6 for learning only.

Key Rules
  • Must provide a Class 5 vehicle or bus with capacity not exceeding 24 passengers (excluding operator) for road test
  • Allows operation of an ambulance or taxi
  • Minimum learning/licensing age is 18 years and no probationary applicants
📋

Knowledge Test Structure

general

To upgrade, you must pass a knowledge test for the licence class sought. It is based on this guide and the Cars and Light Trucks guide. Class 1 applicants may be asked questions from other chapters since they can operate other vehicle types.

Key Rules
  • The test has 30 multiple choice questions
  • You must score a minimum of 25 correct out of 30 to pass
  • When six questions are answered incorrectly, the test is stopped and a fail recorded
📋

Road Test Pre-Trip Requirements

general

Class 1, 2 or 3 applicants must conduct a pre-trip inspection in addition to the road test, communicating and demonstrating what they inspect. Notes may not be used.

Key Rules
  • Must communicate and demonstrate a pre-trip inspection, couple/uncouple (Class 1), and air brake inspection where applicable
  • You may not refer to any notes during the pre-trip
  • If the vehicle fails the pre-trip or you do not complete it, the road test will not proceed
  • A road test will not be done in a vehicle required to display dangerous goods placards
🛑

Braking System Definitions and Endorsements

airbrakes

Three braking system types exist: full air brakes (air to all foundation brakes), air over hydraulic (combination), and air actuated hydraulic (air assisted but hydraulic foundation brakes). Each has different endorsement requirements.

Key Rules
  • Full air brakes and air over hydraulic systems require an air brake 'Q' endorsement or Class 1 licence
  • Air actuated hydraulic braking systems do NOT require a 'Q' endorsement
  • No driver (other than a learner) may operate a vehicle with air-to-all-foundation air brakes without a Class 1 licence or 'Q' endorsement
📋

Class 2 Licence and Buses

general

A Class 2 licence permits operation of a bus and any vehicle a Class 3, 4 or 5 holder may operate. For the road test you must provide a bus seating more than 24 passengers excluding the operator. An air brake Q endorsement is required for air brake equipped vehicles.

Key Rules
  • Class 2 permits operating a bus and any Class 3, 4 or 5 vehicle
  • Road test bus must seat more than 24 passengers excluding operator
  • Air brake Q endorsement or course completion certificate required if vehicle has air brakes
  • Minimum age is 18, cannot apply as probationary driver
📋

Class 3 Licence Restrictions

general

A Class 3 licence permits single vehicles with three or more axles, and towing trailers without air brakes. A Class 3 holder cannot operate vehicles seating more than 15 while transporting passengers, nor transport passengers for hire.

Key Rules
  • Class 3 allows a single motor vehicle with three or more axles
  • May tow a trailer with one or more axles only if trailer has no air brakes
  • Cannot carry more than 15 passengers when transporting people
  • Cannot transport passengers for hire
  • Road test requires a single vehicle with three or more axles (no 3-axle RVs)
📋

Class 4 Licence Privileges

general

A Class 4 licence permits operation of small buses (24 or fewer passengers), ambulances, taxis, and any Class 5 vehicle. Road test requires a Class 5 vehicle or bus seating 24 or fewer excluding operator.

Key Rules
  • Class 4 permits buses seating not more than 24 excluding operator
  • Class 4 permits ambulances and taxis
  • Road test requires Class 5 vehicle or bus seating 24 or fewer
  • Minimum age 18, cannot apply as probationary driver
📋

Medical and Vision Requirements

general

A medical report is required to upgrade to Class 1, 2 or 4. Reports must be renewed at set age intervals. A vision assessment is also required before upgrading; failing minimum standards requires an optometrist/ophthalmologist referral.

Key Rules
  • Medical report required to upgrade to Class 1, 2 or 4
  • Medical required every 5 years until age 45, every 2 years from 45-65, every year after 65
  • Vision assessment required before upgrading
  • You must report any disease or disability affecting safe driving to a Registry Agent
  • Bring corrective glasses or contact lenses to the vision assessment
📋

GDL and Wrong-Class Driving Rules

general

An applicant holding a Graduated Driver Licence (GDL) cannot take a road test for a classification higher than Class 5. Driving with the wrong licence class is illegal, and it is also an offence for a vehicle owner to allow this.

Key Rules
  • GDL holders may not take a road test above Class 5
  • Driving with the wrong licence class is against the law
  • Vehicle owners must not allow driving by someone without the proper class
  • 10-day waiting period applies to certain out-of-province re-class applicants
🚛

Key Vehicle Definitions

combination

A bus is a commercial vehicle designed to carry 11 or more persons including the driver. A semi-trailer has axles only at the rear and connects by kingpin and fifth wheel. A truck tractor may couple to a semi-trailer via a fifth wheel.

Key Rules
  • A bus is designed to carry 11 or more persons including the driver
  • A semi-trailer has axles only at or near the rear end
  • A semi-trailer connects to a truck tractor via kingpin and fifth wheel
  • A truck tractor couples to a semi-trailer via a fifth wheel
🛑

Q and S Endorsements

airbrakes

A Q endorsement is placed on any licence class when a driver completes an approved Alberta air brake course. An S endorsement is for school bus drivers (Class 1, 2 or 4) who complete the School Bus Driver Improvement Program.

Key Rules
  • Q endorsement is earned by completing an approved Alberta air brake course
  • S endorsement requires completing the School Bus Driver Improvement Program
  • S endorsement available only to Class 1, 2 or 4 licence holders
📋

Learning Requirements for Commercial Classes

general

To learn to drive a commercial class vehicle you must hold at least a Class 5 or Class 5 GDL licence. You cannot apply for commercial classes while in the GDL program. Learning drivers must be accompanied by a qualified instructor.

Key Rules
  • Must have at least a Class 5 or Class 5 GDL licence to learn a commercial vehicle
  • GDL holders may not take a road test for a class higher than Class 5
  • Instructor must be at least 18 and hold the appropriate class; road test taker must be 18 non-GDL
  • No air brake endorsement needed while learning on an air brake equipped vehicle
📋

Cross-Jurisdiction Waiting Period

general

New applicants from other Canadian jurisdictions must wait to re-class to commercial classes so Alberta can confirm licence information.

Key Rules
  • A 10-day waiting period applies to non-GDL Class 5, 5-6 and 6 new applicants from other Canadian jurisdictions re-classing to Classes 1 to 4
  • Driving with the wrong licence class is illegal, and allowing an improperly licensed driver to operate is also an offence
🛑

Air Brake Endorsement and Farm Vehicles

airbrakes

An air brake 'Q' endorsement is not required for a single motor vehicle registered as a farm vehicle, but is required for a farm vehicle combination requiring a Class 1 licence.

Key Rules
  • No air brake endorsement needed for a single motor vehicle registered as a farm vehicle
  • Air brake endorsement required for a farm vehicle combination requiring a Class 1 licence
  • Must show proof of air brake qualifications when applying for a Class 1 licence even if the vehicle is a farm vehicle
📋

Endorsements and Vehicle Definitions

general

A 'Q' endorsement is added when a driver completes an approved Alberta air brake course. An 'S' endorsement is for school bus drivers who complete the School Bus Driver Improvement Program. A bus is designed for 11 or more persons including the driver.

Key Rules
  • A 'Q' endorsement requires successful completion of an approved Alberta air brake course
  • Class 1, 2 or 4 holders may apply for an 'S' school bus endorsement after the School Bus Driver Improvement Program
  • A 'bus' is a commercial vehicle designed to carry 11 or more persons including the driver
  • A semi-trailer connects to the truck tractor via a kingpin and fifth wheel
📋

Dangerous Goods Placard Road Test Rule

general

A road test will not be conducted in any vehicle that is required to display dangerous goods placards.

Key Rules
  • No road test may be done in a vehicle displaying required dangerous goods placards

5.Size and Weight Restrictions of Commercial Vehicles

🚛

Maximum Commercial Vehicle Dimensions

combination

Commercial vehicles must not exceed specific dimensions for width, height, length and wheelbase. Vehicles wider than 2.05 metres require clearance lights (amber front, red rear). Exceeding these limits requires a special permit.

Key Rules
  • Maximum width is 2.6 metres
  • If wider than 2.05 metres, clearance lights required: amber in front, red in rear
  • Maximum height is 4.15 metres from the ground surface (including load)
  • Maximum length for a straight truck is 12.5 metres
  • Maximum wheelbase for a truck-tractor is 6.2 metres
🚛

Maximum Combination Lengths

combination

Overall length limits apply to tractor semi-trailer combinations and TAC vehicle combinations (A, B and C trains). No vehicle may operate if weight on a tire, axle or gross vehicle weight exceeds the Commercial Vehicle Dimension and Weight Regulation (AR 315/2002).

Key Rules
  • Maximum 23 metres overall length for a tractor semi-trailer or truck and towed trailer combination
  • Maximum 25 metres overall length for TAC combinations of A, B and C trains
  • Maximum box length is 16.2 metres (53 ft.)
  • Weight exceeding the regulation is not allowed on a highway
🚛

Special Permits for Oversized Equipment

combination

Specialized, oversized or overweight equipment requires a special permit that states specific conditions the driver must follow.

Key Rules
  • Permit conditions state routes, days and hours of travel
  • Permit specifies the type of equipment that must be used
  • Permit includes anything needed to prevent road damage and ensure safety

6.Transporting Dangerous Goods (Placards and Explosives)

📋

Documentation for Class 1 Explosives Transport

general

Every vehicle carrying Class 1 material (Explosives) must carry a document signed by the vehicle's owner or lessee that names the authorized driver(s) permitted to operate or accompany the vehicle.

Key Rules
  • A signed document from the owner or lessee is mandatory for Class 1 Explosives vehicles
  • The document must indicate the name(s) of authorized driver(s) to operate or accompany the vehicle
📋

Lost or Damaged Placards Must Be Replaced

general

If the dangerous goods placards and panels are lost, damaged, or defaced during the trip, the carrier is responsible for replacing them immediately to maintain proper identification of the load.

Key Rules
  • Carrier must replace lost, damaged, or defaced placards during the trip
  • Placards and panels must remain visible and intact throughout transport
📋

Dangerous Goods Contact Information

general

For complete information on transporting dangerous goods, drivers can contact the Dangerous Goods, Vehicle and Rail Safety Branch in Edmonton at 780-422-9600, or toll free anywhere in Alberta at 1-800-272-9600 with 24-hour service.

Key Rules
  • Edmonton contact for dangerous goods: 780-422-9600
  • Toll free Alberta-wide 24-hour service: 1-800-272-9600

Ready to practice?

Test your knowledge with exam-style Alberta CDL questions.

Start free practice →

All chapters

← Back to the Alberta study guide 2. Module 3: The Supply Circuit +73. Knowledge Test +44. Module 8: Automatic Slack Adjusters +75. How Long Does It Take to Stop a Vehicle? +66. Park Control Valve Test +77. Module 6: Trailer Air Systems +78. Module 3: Supply Circuit +89. National Safety Code: Hours of Service +1010. Operating Long Combination Vehicles +811. Trip Inspections: Circle Check and Walk-Around +1112. Trip Inspections: Enroute, Inspection Stations and Post-Trip +5

Other languages

Français中文EspañolFilipinoTiếng Việtالعربيةفارسی한국어日本語ਪੰਜਾਬੀहिन्दी