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View All PlansThe Exam Simulator mimics the actual exam. It will stop once you reach the maximum number of allowed mistakes.
From the beginning of your career, you’ll find your District of Columbia Commercial Driver’s License (CDL) gives you an opportunity to transport a variety of cargoes. A CDL tanker endorsement can open the door for you to climb the ladder to success around Capitol Hill by serving the specialized transportation needs of the public and private sectors. Your professional services are in high demand, and employers are willing to pay top dollar. However, before you can begin your pursuit of these opportunities, you will need to acquire an extensive knowledge of the road rules and safety practices required to operate tanker trucks and trailers.
Our District of Columbia DMV CDL tanker endorsement practice test is made up of 20 questions to assess your current proficiency level and identify your misconceptions. Besides passing a medical exam, you must demonstrate your understanding of driving skills by passing an official knowledge test. The practice test uses an interactive instructional method to prepare you for the challenges of the official knowledge test. If you submit an incorrect answer, the practice test will provide a thorough explanation of the correct one. The practice test outperforms study guides or other on-line resources that limit your learning potential to memorizing the answers to the questions. It is based on the most recent District of Columbia DMV CDL Manual (District of Columbia CDL Handbook) and is up to date as of February 2026. Using the practice test, you will optimize your ability to absorb the information and apply it to various driving scenarios.
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In addition to the CDL tanker endorsement, a Hazardous Materials (HazMat) endorsement will further expand your driving opportunities to include cargoes requiring additional safety concerns. Such jobs may involve transporting flammable liquids or toxic gases. Both the CDL tanker and HazMat endorsements require you to correctly answer a minimum of 80% of the 20 questions on their respective knowledge tests. The practice test will equip you with the skills and confidence necessary to achieve these results and pass the official knowledge test on your first attempt.
Walter Reed is known for providing outstanding medical care to soldiers, and you will find expert instruction to nurture your driving skills with the practice tests at https://driving-tests.org/district-columbia/.
Driver’s Ed is - nobody wants to set foot inside the DMV. 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 DC 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 DMV.
Driving-Tests.org is officially listed in the FMCSA Training Provider Registry (TPR) as an approved ELDT training provider.
You can verify our listing yourself at tpr.fmcsa.dot.gov - search for "Driving-Tests" in the Provider Name field, then click the "Online" tab.
Verify at tpr.fmcsa.dot.govThe Exam Simulator mimics the actual exam. It will stop once you reach the maximum number of allowed mistakes.
