Washington CDL Written Test — Questions, Cost & Study Tips (2026)

Studying for your Washington CDL written exam? Here is what applicants typically need to know before visiting Washington DOL.

How many questions on the Washington CDL test?

Washington general knowledge written exams commonly include about 50 multiple-choice questions for the core CDL knowledge test. Endorsements such as air brakes, combination vehicles, hazmat, and passenger are separate written tests if your license class requires them.

PassCDL mirrors this structure: start with general knowledge, then add endorsement practice for the tests you need.

Washington CDL test cost (approximate)

Written exam fees at Washington DOL are typically $30–$45 per attempt (varies by office and endorsement). Failing and retesting can cost more than a month of PassCDL Pro — many students prefer unlimited practice before test day.

Washington study tip

Washington DOL CDL written exams cover federal regulations and state commercial driving rules.

Free WA CDL practice test

Use our Washington CDL practice test for scored questions and explanations. PassCDL Pro adds full exam simulations, all endorsements, and unlimited retakes.

See also: How many questions on the CDL test? · CDL general knowledge study guide

Educational practice only — not affiliated with Washington DOL or any state DMV.