Free Maryland CDL Practice Tests — Your Complete Study Guide
Pass your Maryland CDL permit exam with 80%+ on the first try
To obtain a CDL in Maryland, you must pass three written permit tests — General Knowledge, Combination Vehicles, and Air Brakes — at the Maryland Department of Motor Vehicles. Similar to a regular driver's license permit exam, these are timed, multiple-choice tests based on the official Maryland CDL handbook.
All of our practice material is built from the official Maryland CDL handbook and federal resources, and curated by professionals with over 10 years of experience in the commercial transportation industry. Studying with practice tests that mirror the real exam format is one of the most effective ways to pass on your first try.
On this page you'll find free practice tests for all three sections. For the full question bank and additional study features, download the CDL Help app.
What Are You Preparing For?
Select one or more options so we can show you exactly which tests you need to take.
Most drivers choose Class A CDL. It's required for any combination vehicle over 26,001 lbs — tractor-trailers, semis, and 18-wheelers. If you're not sure, this is the safest pick.
Class A CDL
Combination vehicles over 26,001 lbs GVWR. Required for tractor-trailers, tanker trucks, flatbeds, and most long-haul jobs.
Class B CDL
Single vehicles over 26,001 lbs GVWR. Common for straight trucks, large buses, dump trucks, and box trucks.
Endorsements
HazMat, Tanker, Doubles & Triples, and Passenger are add-ons for specific job requirements. If you're unsure, you don't need them — they can be added later.
What You Need to Study
Endorsement Tests
Additional endorsements you may need depending on the type of vehicle or cargo you plan to operate.
CDL Requirements in Maryland
- To obtain a Commercial Driver License (CDL) in Maryland, you must meet the following eligibility requirements:
- Must be at least 18 years old for intrastate (within Maryland) commercial driving. Drivers under 21 receive a "K" restriction (intrastate only) and cannot hold Passenger (P), School Bus (S), or Hazardous Materials (H) endorsements.
- Must be at least 21 years old for interstate commercial driving or to transport hazardous materials.
- Must hold a valid, full Maryland driver's license (motorcycle-only license is not sufficient).
- Must be domiciled in Maryland with proof of residency.
- Must have lawful status in the United States. SSN verification against Social Security Administration records is required.
- Must complete a medical examination and provide a valid Medical Examiner's Certificate. As of June 23, 2025, DOT cards are transmitted electronically from the FMCSA National Registry to the MVA. Must submit CDL Medical Self-Certification Form (DL-330). Medical exams must be renewed every two years.
- Must pass the General Knowledge written test and any applicable endorsement knowledge tests. Knowledge tests are administered in English and Spanish only. Tests not given after 3:00 PM Mon–Fri or after 10:00 AM Saturdays.
- Must obtain a Commercial Learner's Permit (CLP) before taking the CDL skills test; the CLP must be held for at least 14 days. All knowledge and skills test passing scores valid for maximum 6 months.
- Must pass a three-part skills test: pre-trip vehicle inspection, basic vehicle control, and on-road driving.
- Entry Level Driver Training (ELDT) is required for all original Class A and Class B CDL applicants, those upgrading from Class B to Class A, and those adding Hazmat (H) endorsement.
- Must not have a "prohibited" status in the federal Drug & Alcohol Clearinghouse (DACH).
- Must pass a TSA security threat assessment for Hazmat endorsement ($109.25 fee).
- CDL classes: Class A (combination vehicles over 26,001 lbs GCWR), Class B (single vehicles over 26,001 lbs GVWR), Class C (vehicles designed to transport 16+ passengers or hazmat).
- Endorsements available: H (Hazmat), N (Tank), P (Passenger), S (School Bus), T (Double/Triple Trailers), X (Hazmat + Tank).
- Maryland CDLs are valid for up to 8 years.
Your Path to a Commercial Driver's License
To get a CDL, you must first study for and pass the permit exam at the DMV. After you receive your permit, you can take commercial vehicle driving classes and complete the required training. The final step is passing the official driving exam to earn your CDL. Our practice tests help you prepare for the DMV permit exam with real-style questions, and we also provide extra study materials and helpful resources to guide you through the process.
Official Maryland CDL Handbook
The official Maryland Commercial Driver's License Manual covers every topic tested on the state's CDL knowledge exam — but it reads like a dense reference manual, not a structured study guide. A more effective way to prepare is with our General Knowledge practice tests. Our free Maryland CDL permit practice test mirrors the format and content of the official exam and is fully up to date as of February 2026. Each practice test features 20 questions covering essential topics such as vehicle inspection, safe driving techniques, air brakes, cargo securement, driving emergencies, hazardous conditions, and Maryland-specific commercial driving regulations. Unlike the official test, every practice question comes with a helpful hint and a detailed explanation of the correct answer — so you actually learn from every question you answer.
- Complete CDL regulations and Maryland-specific requirements
- Safe driving techniques, vehicle inspection, and cargo handling
- All endorsement categories and testing requirements
Non-Domiciled CDL Information
Important information about non-domiciled commercial driver's licenses in Maryland.
Federal regulations on non-domiciled CDLs are changing rapidly. The information below reflects the latest known state actions.
Maryland has not published specific state-level details regarding the suspension or status of its non-domiciled CDL program beyond compliance with federal requirements. Maryland can issue non-domiciled CDLs under federal 49 CFR 383.23 to individuals domiciled in a foreign jurisdiction that does not issue CDLs. Under the FMCSA final rule published on February 13, 2026, eligibility for non-domiciled CLPs and CDLs for foreign-domiciled individuals is now limited to those holding specific, verifiable employment-based nonimmigrant statuses — such as H-2A, H-2B, and E-2 visa holders. Individuals under humanitarian or deferred status categories — including asylum seekers, refugees, and DACA recipients — are no longer eligible. State Driver's Licensing Agencies must verify applicant status through the SAVE database. Maryland is expected to comply with these federal requirements. Affected drivers should contact the Maryland MVA CDL Hotline at 1-800-344-7309 for the most current information.[FMCSA Final Rule]
English Language Proficiency (ELP)
Federal ELP enforcement applies to all CDL holders nationwide.
Federal ELP enforcement applies to all CDL holders nationwide. Here is how it is enforced in Maryland.
Maryland does not currently administer a separate state-level English Language Proficiency (ELP) test for CDL applicants. However, all Maryland CDL holders are subject to federal ELP enforcement, which took effect on June 25, 2025. Under this enforcement, roadside inspectors conduct a two-step assessment: first, a conversational interview in English — no interpreters or translation tools are permitted — to evaluate whether the driver can communicate sufficiently in English; second, the driver must demonstrate the ability to read and interpret standard U.S. traffic signs. Drivers who fail either step of the assessment are placed out of service under CVSA guidelines. Maryland CDL applicants should be prepared to demonstrate English proficiency during any roadside inspection or compliance review.