About DriveTruck.org

DriveTruck.org is a free CDL prep site covering all 50 U.S. states + Washington DC. It's a sister site to DriveCar.org, which serves the same role for non-commercial DMV permit tests.

What we do

• Summarize each state's CDL process — ages, fees, CLP hold, retake rules, ELDT.
• Generate practice tests for General Knowledge, Air Brakes, Combination, and all six endorsements.
• Cite official sources for every fact.
• Keep content updated each year.

Citation policy

Every state fact we publish has a visible citation linking back to the official state DMV/DOT page or to the relevant section of 49 CFR (Part 383, 380, 391). If you find a stale or wrong citation, tell us.

What we don't do

• We are not affiliated with the FMCSA, any state DMV, or any state DOT.
• We don't sell, share, or store personal data — there are no user accounts.
• We don't claim the practice questions match the exact wording of the real exam.