California CDL Practice Test
The California CDL knowledge tests are administered by the California DMV using the California Commercial Driver Handbook. California follows the AAMVA model manual, but the state also enforces its own traffic and commercial vehicle regulations, so a portion of every California CDL knowledge test focuses on state-specific rules.
This free California CDL practice test covers every knowledge exam California gives: General Knowledge, Air Brakes, Combination Vehicles, and all endorsements. Every question is built from public FMCSA regulations and the current California Commercial Driver Handbook.
What this test covers
- California CDL General Knowledge (Class A, Class B, and Class C)
- California Air Brakes and Combination Vehicles
- All California endorsements: HazMat, Tanker, Doubles & Triples, Passenger, School Bus
- California ELDT theory topics
- California Commercial Driver Handbook references throughout
How to study
- Start with General Knowledge — every California CDL applicant takes it regardless of class.
- Read the current California Commercial Driver Handbook alongside the app.
- For ELDT credentials, use a California ELDT provider listed on the FMCSA Training Provider Registry.
Frequently asked questions
- Where do I take the California CDL knowledge test?
- California CDL knowledge tests are given at DMV field offices that handle commercial applicants. Check dmv.ca.gov for CDL testing locations.
- How much does a California CDL cost?
- The California DMV charges an application fee for an original CDL plus separate fees for each endorsement. Check dmv.ca.gov for the current fee schedule since amounts change.
- Is the California CDL test the same as other states?
- The core content is the same because it comes from FMCSA regulations and the AAMVA model manual. A portion of the California test covers state-specific commercial vehicle laws and DMV procedures.
Ready to start?
Practice this CDL topic free — no account needed for your first session. Unlock the full course when you're ready.