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View All PlansIn the District of Columbia, the Department of Motor Vehicles (DMV) oversees the licensing process. All aspiring commercial drivers must take and pass several theory and skills exams to obtain a CDL (Commercial Driver’s License). Additionally, they must complete Entry-Level Driver Training (ELDT), pass a vision screening, provide identification documents, and pay the licensing fees. Those who plan to engage in non-excepted commerce must also pass a medical examination.
Tanker driving involves great responsibility. There’s no room for error when you’re behind the wheel of a fully-loaded tanker hauling gasoline or pesticides through the capital of the United States. That’s why the DMV requires aspiring tanker drivers to pass a 20-question knowledge test on the safe operation of tankers. Upon passing this exam, you will receive the Tank Vehicles (N) endorsement. This credential will allow you to drive commercial vehicles designed to transport liquid or gaseous materials in one or more tanks, with each tank having an individual rated capacity of more than 119 gallons and an aggregate rated capacity of 1,000 gallons or more. To transport hazardous materials, you must also pass the official HazMat Endorsement Knowledge Exam.
M.S., Chief Educational Researcher (ACES member)
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The practice test that you’re about to take is our second District of Columbia CDL Tanker Vehicles Practice Test. It closely reflects the content and format of the official Tanker Vehicles Knowledge test, so you can use it to prepare before exam day. “Officer Frank” will be present during your training sessions, ready to provide assistance at your request. Initiate a conversation with this personal AI coach and ask for hints, real-life examples, and detailed explanations.
With unlimited attempts and nonstop access, there’s no limit to how often you can train with this practice test. Incorporate it into your daily study routine and improve your knowledge through active learning. You can also check out our Free District of Columbia CDL Permit Practice Test, which will teach you general commercial driving theory.
Employers in the District of Columbia seek to hire professional tanker drivers who understand the responsibilities of this job. To succeed in this field, you must put in the time and effort to fully master this subject. With our practice tests, you are not just preparing for your theory exams; you are also becoming a better driver.
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.
