Arizona Department of Transportation, Motor Vehicle Division
Arizona CDL practice tests
How Arizona handles the commercial learner permit, the fees and the skills test.
- General Knowledge24 questions, required of every applicant
- Air Brakes20 questions, skip it and an L restriction applies
- Combination Vehicles18 questions, needed for Class A
- Hazardous Materials20 questions, endorsement H
- Tank Vehicles16 questions, endorsement N
Every knowledge area
The 145 questions are the same in every state. Start with general knowledge, then sit the areas Arizona will write onto the permit.
General Knowledge
Required of every applicant: inspection, control, space and speed management, hazard perception, emergencies and hours of service.
Air Brakes
Air brake knowledge and vehicle checks for applicants who may drive vehicles with air brakes.
Combination Vehicles
Coupling, the fifth wheel, off tracking and trailer swing. Needed for Class A.
Hazardous Materials
Placards, shipping papers, segregation and the security threat assessment.
Tank Vehicles
Liquid surge, baffles, outage and why a tanker rolls over so readily.
Doubles and Triples
Rearward amplification, converter dollies and coupling a second or third trailer.
Passenger Transport
Bus inspection, standee lines, passenger supervision and railroad crossings.
School Bus
Danger zones, loading and unloading, student crossing and evacuation.
What is different in Arizona
Arizona in particular
Arizona charges exactly half as much for a Class C application and skills test as it does for Class A or B, and it keeps skills testing off the general MVD counter entirely, running it only through a short list of designated CDL offices or through examiners certified under its own testing program.
The written exams themselves are federal
Arizona decides the permit rules, the fees and who runs the skills test, but the knowledge you are tested on comes from 49 CFR Part 383 and is the same in every state, which is why the 145 questions here work wherever you apply.
What changes in this state
Commercial learner permit
An Arizona commercial learner's permit must be held at least 14 days before the CDL skills test, and the permit is valid for a maximum of 12 months.
Arizona Department of Transportation, checked Aug 28, 2026Fees
A Class A or B commercial learner's permit or CDL application costs $25, a Class C application costs $12.50, and the road skills test is charged again at the same rate by class.
Arizona Department of Transportation, checked Aug 28, 2026Where you test
The knowledge test can be taken at any MVD office, while the skills test is given by appointment at a set of designated MVD CDL offices or by an examiner certified through MVD's Commercial Driver License Examination Program.
Arizona Department of Transportation, checked Aug 28, 2026Arizona CDL written exams, in the federal format.
145 cited questions, free, with nothing to sign up for. The permit rules above are Arizona's. The knowledge is 49 CFR Part 383.