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View All PlansAnyone planning to drive a tanker in Maine must obtain a Tank Vehicles (N) endorsement on their Commercial Driver’s License (CDL). This process begins with passing a knowledge test that evaluates your understanding of several key principles specific to tanker trucks. Knowing how to handle liquid surge is crucial, especially on the winding rural roads in the western and northern parts of the Pine Tree State.
Initially, you’ll begin with the learning phase, where the foundation for your career is built. As you study the official 2025 CDL manual (Maine CDL Handbook 2025), remember that the final goal isn’t to obtain a passing score on the Tank Vehicles endorsement knowledge test. You must fully master this subject before the Bureau of Motor Vehicles (BMV) will grant you the right to drive a tanker vehicle.
We recommend taking several weeks to study the various aspects of commercial driving, including the safe operation of tankers. Make good use of all the resources available online, including our own CDL Tanker Endorsement practice tests. Specific to the state of Maine, these practice tests are designed to closely resemble the official knowledge exam. With unlimited attempts, you can train with this tool whenever and wherever you want as long as you have an active internet connection.
Although you shouldn’t get discouraged when you make a mistake, we understand that sometimes you might need a fresh start. If you get several wrong answers in a row, your motivation could drop significantly, affecting your overall performance. During your training sessions, you shouldn’t place too much importance on your score while you are still in the learning phase. Instead, learn from your mistakes and avoid repeating them when you encounter those problematic questions again.
Use the restart button to wipe your current progress and get a fresh start. When you do so, remember that the order of the questions in the new session will be randomized. Additionally, students with an echoic memory can make good use of the voiceover feature, which uses an artificial voice to read the questions and answer choices aloud. For those who take full advantage of this helpful feature, the ability to recall auditory information will come in handy during the day of the exam.
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Last verified for accuracy: November 2025 (reviewed weekly)
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