Based on the official 2025 CDL manual
Over $40 Billion in aircraft parts are hauled out of Washington state annually. So if you want to be a part of driving jet engines through Olympia or just bussing conventioneers to Seattle Mariners games, you’ll need a Washington commercial driver’s license (CDL). We have practice tests for endorsements like passenger and school busses, doubles/triples, tank vehicles, hazardous materials, or air brake restriction removal.


☝️ This button will always point to the next step you need to take.
Washington requires additional steps beyond federal ELDT rules. We're working with the WA DOL to become an approved provider, but you might want to choose a local provider in the meantime.
by CDL College
Your personalized Challenge Bank™ automatically retests you on all your missed questions until you nail every single one. No shame - we all have weaknesses!
Read or listen to this interactive handbook designed for minimum boredom and maximum engagement. Download to study anywhere, anytime.
Many people arrive at the DMV overconfident and underprepared because they fail to do some of the simple things that would allow them to pass easily. What follows are the 10 steps that every aspiring commefcial driver should take to prepare for his or her official CDL or CLP knowledge exam.