Commercial Driver License (CDL)

Do I need a CDL?

Find out if you need a CDL to drive your commercial vehicle.

CDLs and endorsements

Learn about the different classes of CDLs, restrictions, and when you need to have an endorsement on your CDL.

Getting a CDL

Find out about instruction permits, self-certification, training, employer registration, agribusiness requirements, medical exams, and drug testing required to get a new CDL.

CDL testing

Learn about the knowledge and skills tests you must pass before getting a CDL, and prepare with a practice knowledge test.

Renew or update your CDL

Learn how to renew or update a CDL.

Apply for, update, or transfer your CDL

Find out what you need to do to apply for or update your CDL. If you have a valid CDL from another state, find out what you need to do to transfer it to Washington State.

CDL third party examiners

Find out how to become a third party examiner.

For CDL training schools

Find out how to become an approved CDL training school.

CDL disqualifications

Learn about CDL disqualifications and what to do if your CDL is disqualified or revoked.

CDL resources

Links to sites with useful CDL information.

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