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Anyone who wants to become a commercial driver in Washington State must first meet the requirements for a Commercial Learner’s Permit (CLP). Applicants must be at least 18 to drive within the state and at least 21 to drive across state lines, transport passengers, or transport hazardous materials. To obtain a CLP, you must pass a vision screening, provide identification documents, and pay the necessary fees. Unless you will only be engaged in excepted commerce, you must also take a medical exam.
The official general knowledge exam includes 50 multiple-choice questions to evaluate your understanding of commercial driving theory. These questions are based on the Washington Commercial Driver Guide (Washington CDL Handbook 2026), an official resource published by the DOL. You must score 80% or higher to pass.
To obtain a Class A CDL, you must also pass the official combination vehicles knowledge test. This exam covers key topics such as coupling and uncoupling procedures, pre-trip inspections specific to combination vehicles, and safe driving practices. You must pass this exam to get your CLP and qualify for the CDL skills tests. Since most trucks in the Evergreen State are equipped with air brakes, you must also pass the official air brakes knowledge tests to drive them.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
To study commercial driving theory efficiently and ace the official general knowledge test on your first attempt, you should adopt a different approach in your learning phase. Our Washington CDL Class A Practice Test can be used to evaluate your knowledge and identify mistakes so that you can be ready and confident on exam day. It is up to date as of January 2026, so you will always practice with the latest version. Use it regularly throughout your day and stay consistent in your training.
Take the first step today and build the foundation for a strong career. Use our Washington CDL Class A Practice Test alongside the official commercial driver guide to study efficiently and develop the confidence and knowledge to earn your Class A CDL.
Driver’s Ed is - nobody wants to set foot inside the DOL. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2026 WA Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with DOL.
