Get your CDL the smart way. CDL Prep gives you real, exam-style practice questions for your state's commercial driver's license test — so you walk into the DMV ready to pass.
Whether you're going for Class A, Class B, or Class C, or adding endorsements, every question comes with a clear explanation. You actually understand the material instead of just memorizing answers.
WHY DRIVERS CHOOSE CDL PREP
- State-specific tests — Pick your state and get the right handbook and questions, from California to all 50 states.
- Real exam simulation — Timed tests with the same 80% pass mark as the real thing. No surprises on test day.
- Every answer explained — Miss a question? Get a plain-English explanation so the concept sticks.
- Study in your language — Not a native English speaker? Instantly translate any question into Turkish, Spanish, German, French, Portuguese, Russian and more.
- Review your mistakes — The app tracks what you get wrong and helps you focus exactly where you need to improve.
- Thousands of questions — Practice across multiple full-length tests covering everything on the official exam.
TOPICS & ENDORSEMENTS COVERED
- General Knowledge
- Air Brakes
- Combination Vehicles
- Hazardous Materials (HazMat)
- Tanker Vehicles
- Doubles & Triples
- Passenger & School Bus
- Pre-Trip Inspection
BUILT FOR THE 2026 ELDT ERA
New Entry-Level Driver Training rules mean more is riding on your knowledge test than ever. CDL Prep keeps questions aligned with current CDL standards, so you study what actually matters.
START FREE
Download CDL Prep, pick your state, and start practicing today. Your commercial driving career starts with one test — let's pass it on the first try.
⚠️ Disclaimer: CDL Prep is an independent study app and is NOT affiliated
with, endorsed by, or representing the FMCSA, any state Department of Motor
Vehicles (DMV), or any other government agency. This app does not represent a
government entity and does not provide or facilitate official government services.
Practice questions and handbook content are based on publicly available
government materials. Always verify current requirements with your official
state licensing agency.
Official sources:
• FMCSA — Commercial Driver's License:
https://www.fmcsa.dot.gov/registration/commercial-drivers-license
• State CDL manuals & licensing agencies:
https://www.fmcsa.dot.gov/registration/commercial-drivers-license/state-resources-and-programs