Free California CDL Practice Tests
Getting your CDL in California starts with the written knowledge tests at the California Department of Motor Vehicles. Those exams are built on the federal CDL standards, so the fastest way to prepare is to practice against the same material — free, unlimited retakes, every answer explained. Aim for consistent scores above 80%: that's the pass bar the real exams use.
California practice tests by topic
- CA General Knowledge practice test
- CA Air Brakes practice test
- CA Combination Vehicles practice test
- CA Pre-Trip Inspection practice test
- CA Hazardous Materials (H) practice test
- CA Tanker (N) practice test
- CA Doubles & Triples (T) practice test
- CA Passenger (P) practice test
- CA School Bus (S) practice test
Sample practice questions
The only real cure for drowsiness is:
Answer: Sleep — Only sleep restores alertness; the rest are short-lived tricks.
You may drive after taking which medication?
Answer: A drug a doctor prescribed and said won't affect safe driving — Only a doctor-cleared medication; avoid anything that impairs you.
By holding a CDL and driving a CMV, you have agreed to what?
Answer: Alcohol and drug testing (implied consent) — Implied consent means you've already consented to alcohol/drug testing; refusing is a major offense.
Official source: California Department of Motor Vehicles
CDL licensing in California is administered by the California Department of Motor Vehicles. Fees, scheduling, forms, and the official California CDL manual live on the official site: California DMV — official CDL page (verified 2026-08-09).
Truckcess is not affiliated with or endorsed by the California Department of Motor Vehicles. Our practice tests cover the federal CDL knowledge standards (49 CFR Part 383) that every state exam is built on; exact question counts, fees, and procedures vary by state and change over time — the official site is always the authority.
How the California CDL process works
- Study the official California CDL manual from the California DMV — state exams draw from it.
- Pass the written knowledge tests to earn your Commercial Learner's Permit (CLP). You can take the CLP knowledge tests before completing ELDT.
- Complete Entry-Level Driver Training (ELDT) from a provider on the federal Training Provider Registry — required before your skills (driving) test. Truckcess provides the theory portion. (Exception: for the HazMat endorsement, ELDT theory is required before its knowledge test.)
- Pass the three-part skills test — vehicle inspection, basic control, and road driving.
The full prep course — every practice test, narrated lessons, the spoken pre-trip trainer — is one-time (Class A $69, Class B $59) with 12 months of access: mytruckcess.com/cdl.
CDL practice tests by state · Meet the Course Director · The completion certificate