ME · CDL Class B

Maine CDL Class B Practice Questions and License Guide

Prepare for a Maine Class B commercial driver license with 100 English practice questions from the saved mixed-module bank. The set covers general knowledge, air brakes, hazardous materials, tank vehicles, passenger vehicles, and school buses, with topics spanning licensing, inspection, cargo, braking, speed management, hazardous conditions, tank dynamics, passenger safety, and emergencies. This is a study bank, not an official Maine examination or a promise that every applicant must take every specialty test. Class B is the target license class, while passenger, school-bus, hazardous-material, and tank content applies only when the vehicle or operation requires it. Use the practice set to identify weak areas, then confirm your own permit, training, medical, endorsement, and skills-testing requirements with the Maine Bureau of Motor Vehicles.

Choose a Test Official source ↗

START PRACTICING

Choose your test size

Every test draws only from the Maine CDL Class B question bank.

20questionsStart Class B test → 40questionsStart Class B test → 60questionsStart Class B test → 80questionsStart Class B test →

LICENSING GUIDE

What to know before you test

Use this overview together with the latest official guidance linked below.

Start with the Class B vehicle definition and permit rules

Maine Class B covers a single vehicle with a GVWR of 26,001 pounds or more, including such a vehicle towing another vehicle rated at 10,000 pounds or less. With the proper endorsements, a Class B holder may also operate Class C vehicles, but not Class A combinations. Maine requires supervised commercial-learner-permit practice before the skills test. The permit holder must carry the CLP and be accompanied by a properly licensed CDL holder who has the class and endorsements needed for the vehicle. The supervising operator generally must be at least 20 and have held the required license for at least two years. Federal CDL rules also require the CLP to be held at least 14 days before the skills test.

Complete training, identity, vision, and medical steps

First-time Class B applicants are subject to Entry-Level Driver Training unless an exception applies. Maine directs covered applicants to training through a provider listed in the federal Training Provider Registry, and the applicable ELDT must be completed before the CDL skills test. Standard Maine licensing documentation includes proof of Maine residency, proof of U.S. citizenship or lawful presence, identity documents, and a vision screening. For commercial driving, applicants should also review the CDL medical requirements. Maine requires CDL holders to self-certify their type of commercial operation, and drivers in non-excepted categories must maintain the required DOT Medical Examiner’s Certificate. Medical and documentation requirements can differ with the type of operation, so applicants should verify the category that applies to them.

Understand knowledge tests, skills testing, and passing standards

CDL testing combines knowledge requirements with vehicle skills testing. Federal minimum standards require at least 80 percent correct to pass the applicable CDL knowledge tests. A Class B applicant must also pass the required skills test in a vehicle representative of the class sought, after satisfying the CLP waiting period and any applicable ELDT requirement. Equipment can affect restrictions: for example, a driver who does not qualify on the air-brake requirements may receive a restriction against operating air-brake-equipped CMVs. Maine’s current handbook page also announces a Vehicle Inspection skills-test module for applicants testing on or after November 1, 2026. Because this page is checked on September 15, 2026, that future change is not presented as already effective.

Use specialty modules only when they match your operation

The mixed practice bank intentionally includes air-brake and endorsement-related material, but those modules do not describe one universal Class B exam. Passenger, school-bus, tank, and hazardous-material privileges depend on the vehicle and operation. FMCSA identifies P for passenger, S for school bus, N for tank, H for hazardous materials, and X for the combined tank-and-hazmat privilege. Maine’s CLP rules limit permit endorsements and impose operating restrictions while learning. This Class B bank excludes routine combination-vehicle and doubles/triples modules because those are not normal Class B operating scope. When studying, prioritize general knowledge and the equipment you will actually test in, then add only the specialty material required for your intended vehicle, cargo, or passenger service.

REQUIREMENTS OVERVIEW

Maine CDL Class B requirements

Requirements depend on the applicant and can change. Verify each item with the cited agency.

age

Maine Class B CDL applicants and drivers

Maine law generally does not issue a driver license to a person under 16, and the Maine CDL manual states that a person must be at least 16 to operate a commercial motor vehicle. The manual requires age 21 to operate a bus or carry hazardous materials, and Maine requires a CLP applicant seeking passenger or school-bus authority to be at least 21.

documents

Maine CDL applicants and holders

Maine licensing requires identity, residency, lawful-presence and vision documentation. CDL holders must complete medical self-certification, and drivers certifying to a non-excepted operating category must provide the required current DOT Medical Examiner’s Certificate.

tests

Applicants seeking an initial Maine Class B CDL

A commercial learner permit is used for supervised Class B practice before the CDL skills test. First-time Class B applicants must complete applicable ELDT before the skills test unless exempt, and the applicant must satisfy the federal minimum CLP holding period before taking the skills test.

passing

Maine CDL knowledge and skills test applicants

Federal minimum standards require at least 80 percent correct to pass applicable CDL knowledge tests. Skills testing must be completed successfully in a vehicle representative of the class and equipment the applicant seeks to operate, subject to restrictions that can result from the test vehicle or unmet knowledge requirements.

applicability

Users of this Maine Class B mixed-module practice bank

This 100-question practice bank covers six modules for study: general knowledge, air brakes, hazardous materials, tank vehicles, passenger vehicles, and school buses. Specialty content applies only when the relevant endorsement, vehicle, cargo, or passenger operation is involved; the practice-bank length and module mix are not presented as an official Maine exam blueprint.

OFFICIAL REFERENCES

Sources for this guide

Open the current source before relying on licensing details.

Maine Commercial Driver License Manual - Modernized Testing SystemSection 1 - classes, permits, endorsements, restrictions and vision requirementsOpen source ↗ Commercial Drivers License ExamCDL self-certification and Medical Examiner certificate reportingOpen source ↗ Entry-Level Driver TrainingELDT applicability for first Class A or B and P/S/H endorsementsOpen source ↗ How to Obtain a LicenseTo Get a Driver's LicenseOpen source ↗ Title 29-A, §1304: Learner's permitsCommercial learner's permitOpen source ↗ Title 29-A, §1251: License requiredAge limitOpen source ↗ Driver License Manual and Maine Motorist Handbook and Study GuideCommercial Study Guides and CDL skills-testing transition noticesOpen source ↗ StatesKnowledge & Skills TestOpen source ↗ DriversClasses of License and Commercial Learner's Permits; Endorsements and RestrictionsOpen source ↗