CDL Permit Prep: Practice Test Live

CDL Permit Prep is an independent study aid, not affiliated with or endorsed by the FMCSA, any state DMV, or any government agency. Build the confidence and knowledge to pass your CDL permit test. CDL Permit Prep is a complete commercial driver's license practice test app with 500+ original practice questions covering General Knowledge, Air Brakes, Combination Vehicles, and every major endorsement — built for new drivers studying for the CDL permit test and current drivers adding an endorsement. Practice questions are written based on publicly available federal regulatory material. Official source: Federal Motor Carrier Safety Administration (FMCSA) — https://www.fmcsa.dot.gov/registration/commercial-drivers-license. State-specific requirements vary; always confirm current rules with your state's official DMV website before your exam. WHY DRIVERS CHOOSE THIS CDL PRACTICE TEST APP ✔ 500+ practice questions ✔ Works fully offline — study on the road, in the terminal, anywhere ✔ Mock exams that mirror the real CDL permit test format and pass threshold ✔ Instant explanations for every question, right or wrong ✔ Track your readiness score, streaks, and weak topics so you know exactly what to review ✔ Bookmark tough questions and drill them until they stick CDL GENERAL KNOWLEDGE + CORE TESTS Every CDL applicant starts here. Practice General Knowledge, Air Brakes, and Combination Vehicles questions until you're consistently passing — the same three tests every state requires before you get behind the wheel. ENDORSEMENT PRACTICE TESTS Going beyond the basic permit? Study endorsement-specific question packs: • Hazmat (Hazardous Materials) endorsement practice test • Tanker Vehicles endorsement practice test • Doubles/Triples endorsement practice test • Passenger Vehicles endorsement practice test • School Bus endorsement practice test Each pack covers real exam topics — placarding rules, tank vehicle safety, passenger vehicle procedures, and more — so you're not guessing what to study. STATE-SPECIFIC CDL PRACTICE CDL rules share a federal foundation but every state layers on its own requirements. Practice with state-specific questions so you're ready for exactly what your state DMV asks, not just the generic federal test. Always verify current requirements on your state DMV's official website. STUDY YOUR WAY • Topic-wise practice — drill one subject at a time • Timed practice — build speed under exam pressure • Random practice — mixed review across everything you've studied • Full mock exams — simulate test day start to finish • Wrong-answer review — turn every mistake into a lesson • Daily streaks and XP — build a study habit that sticks BUILT FOR REAL STUDYING, NOT JUST QUIZZING Every question comes with a clear explanation, not just a right/wrong mark — so you understand the rule, not just memorize the answer. Your analytics dashboard shows readiness by topic, so the night before your test you know precisely where you stand. FREE TO START Practice General Knowledge and core CDL questions for free. Upgrade to Premium — or unlock individual endorsement packs like Hazmat or Tanker on their own — only if you need them. No ads, ever. Download CDL Permit Prep and start practicing for your commercial driver's license test today. This app is an independent study tool only. It is not a government app, does not issue any official license or credential, and is not a substitute for your state DMV's official CDL manual or licensing process.