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View All PlansDriving a fully loaded semi-truck through the nation’s capital comes with its own set of challenges. Tour buses stop for photos, diplomatic motorcades appear without warning, and tourists step into the crosswalks without watching for approaching traffic. As a professional commercial driver, you must stay alert and exercise caution at all times. The Department of Motor Vehicles (DMV) employs a strict licensing process and requires all applicants to pass several exams.
If you are interested in driving combination vehicles, you must obtain a Class A CDL (Commercial Driver’s License). This type of license allows you to operate any combination vehicle with a gross combination weight rating (GCWR) of 26,001 pounds or more, as long as the towed unit weighs over 10,000 pounds.
The official general knowledge test is the first theory exam you must pass. It consists of 50 multiple-choice questions based on the official District of Columbia Commercial Driver License Manual (District of Columbia CDL Handbook). You must answer all questions and score 80% or higher to pass. Our Free District of Columbia CDL Permit Practice Test can help you prepare for this exam. It is available online and provides several features that will boost your learning potential.
Your next theory exam is the official combination knowledge test, consisting of 20 multiple-choice questions based on Section 6 (Combination Vehicles) of the official Commercial Driver License Manual. We recommend reading this section multiple times. When you’re ready, you can use our Free District of Columbia CDL Combination Practice Tests to evaluate your knowledge.
To ensure accuracy, we frequently update this practice test (most recently for November 2025). This version includes the latest updates brought by DMV rules or state law. However, you should always check the official DC DMV website for the most up-to-date information.
The District of Columbia needs skilled truck drivers, and now is the perfect time to begin a career in this field. Start your training today and use our practice tests alongside the official Commercial Driver License Manual to improve your knowledge and build a strong foundation for your driving skills.
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Last verified for accuracy: November 2025 (reviewed weekly)
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