Licence requirements
Use Ontario’s current Class A requirements, medical, training and testing information—not an old checklist or social-media post.
ONTARIO CLASS A / AZ STUDY
Ontario AZ practice test and study guide
Original knowledge practice, a focused study plan and direct official sources for Ontario Class A and air-brake preparation.
Independent practice: “AZ” commonly refers to a Class A licence with a Z air-brake endorsement. This page is not an official MTO or DriveTest exam. Questions on the real knowledge test are based on the official handbook for the licence class.
What to study for Ontario Class A/AZ
Vehicle and road knowledge
Study the truck handbook’s sections on vehicle components, safe operation, signs, commercial-vehicle rules and sharing the road.
Inspections and defects
Understand the purpose of required inspections, defect reporting and the difference between a study checklist and the legal inspection schedule.
Air brakes
Use the Official Air Brake Handbook for the Z endorsement. Do not treat a general Class A quiz as complete air-brake preparation.
A simple study routine
- Read one section of the Official MTO Truck Handbook.
- Write down unfamiliar terms and verify them in the handbook.
- Take the Rig Toolbox Class A practice set.
- Review every explanation, including questions answered correctly.
- Return to the official section for anything uncertain.
- Take a new mixed set instead of memorizing the order.
Current Rig Toolbox question bank: each attempt selects 20 original questions from a larger Ontario Class A bank. Your score and answer review appear after submission.
Take the Ontario Class A practice test
Official Ontario truck-licence information →
DriveTest knowledge-test information →
Official Ontario Air Brake Handbook →
Continue studying
AZ pre-trip preparation
Understand what the commercial road-test preparation covers and keep the official source close.
Open AZ pre-trip guide →Ontario MTO updates
Review current links for inspections, ELDs and commercial-vehicle requirements.
Open MTO information →