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Complete study guide for Class A, B, and C licenses. General Knowledge, Air Brakes, Hazmat, and every endorsement — based on the official FMCSA manual.
Hazmat, Tanker, Passenger, School Bus, Doubles/Triples — every endorsement with dedicated practice tests and study materials.
Select your state to see DMV-specific rules, fees, and testing locations layered on top of the federal FMCSA content.
Timed practice tests that mirror the real CDL exam format. See your pass probability rise as you study.
Full content in both English and Spanish. Study in the language you are most comfortable with.
Free to start
Free tier included
“Got my Class A on the first attempt. The Hazmat practice tests were almost identical to the real thing.”
— Carlos R., new CDL holder