Back to Maryland TestsNot Maryland? Change state

Maryland Hazmat Test

Your Hazmat endorsement test covers Maryland's busy I-95 corridor and the Port of Baltimore.

147
Questions
80%
To Pass
40
Minutes

147 questions · 40 min time limit · 80% to pass

Opens in a practice window — choose your mode inside.

JM

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026

All questions sourced from the official Maryland CDL handbook and FMCSA regulations.

About the Maryland Hazmat Test

Maryland's roads demand extra caution when you haul hazardous materials. You'll navigate the I-95 corridor through Baltimore's tunnels, the Port of Baltimore's container terminals, and I-270's mix of commuter and freight traffic. Snow, ice, and heavy rain hit our state every winter. That means you must know how to secure loads and handle spills on slick pavement.

Chemical plants along the Chesapeake Bay, petroleum terminals in Sparrows Point, and the BWI cargo hub all rely on Hazmat drivers. Your endorsement proves you can handle placarding, shipping papers, and emergency response for these critical routes. The Maryland MVA expects you to know federal regulations plus state-specific rules for tunnel restrictions and bridge weight limits.

Our practice test mirrors the actual exam. You'll see 30 multiple-choice questions drawn from the Maryland CDL manual. We break down each topic so you understand why a brake check matters near a school zone or why you need the right placard for a load of chlorine heading to a water treatment plant.

Study with us and you'll walk into the MVA office confident. You won't waste time on generic quizzes. We focus on what Maryland Hazmat drivers face every day: crowded interstates, variable weather, and strict enforcement.

Topics Covered

✓Hazardous materials classes – critical for shipping through MD tunnels with height and weight limits
✓Placarding rules – Maryland troopers check placards regularly on I-695 and I-95
✓Loading and unloading – Port of Baltimore requires specific blocking and bracing
✓Emergency response – know the numbers for MD MEMA and local fire departments
✓Shipping papers – keep them accessible for BWI cargo inspections
✓Vehicle inspections – brake checks matter on steep grades near I-68

Study Tips

Start with the Maryland CDL manual. Focus on the Hazmat section. Then take our practice test. Don't just memorize answers – understand the "why" behind each rule. Maryland MVA asks scenario-based questions about driving through Baltimore Harbor Tunnel or around Fort McHenry.

Schedule your written test at your local MVA office. Bring a valid ID, your current CDL, and the fee (around $75). If you need a Hazmat endorsement for the first time, you'll also need a TSA threat assessment. Complete that online before you visit the MVA.

Practice with our test until you score 80% or higher. Retake it as many times as you want. Each quiz pulls different questions, so you'll cover all the material. Good luck!

Maryland Specific Information

Testing locations: You can take the Hazmat knowledge test at any full-service MVA office in Maryland. Popular ones include the Glen Burnie, Gaithersburg, and Bel Air offices. You don't need an appointment for the written test – walk-ins are accepted during business hours. However, you must have a valid CDL or a learner's permit.

Fees: The Hazmat endorsement costs an additional $50 on top of your CDL renewal fee. You pay this at the MVA counter. Your TSA threat assessment costs $86.50 and goes through the Transportation Security Administration. Allow 4–6 weeks for that background check to clear.

Don't forget: bring your medical certification card. Maryland requires it for all CDL holders. If you let your medical card expire, the MVA will downgrade your CDL. Keep that current.

Frequently Asked Questions

Do I need a TSA threat assessment for the Hazmat endorsement in Maryland?
Yes, you do. Maryland requires a TSA background check for any Hazmat endorsement. Apply online at the TSA website. They'll fingerprint you and run a security threat assessment. That process takes about 4–6 weeks, so plan ahead.
How long is my Hazmat endorsement valid in Maryland?
Your Hazmat endorsement expires when your CDL expires, but you must renew the TSA background check every 5 years. If you let the TSA clearance lapse, the MVA will remove your Hazmat endorsement.
Where can I take the Hazmat written test in Maryland?
You can take it at any full-service MVA office. No appointment needed – just walk in during business hours. Popular spots include Glen Burnie, Gaithersburg, and Bel Air. Bring your CDL, medical card, and the additional fee.
What's the fee for adding a Hazmat endorsement in Maryland?
The endorsement fee is $50. You also need the $86.50 TSA threat assessment. So plan for about $136.50 total. You can't get the endorsement until the TSA clearance comes through.
Can I take the Hazmat test at any MVA office, or only certain ones?
Any full-service MVA office works. But if you need a road skills test too, you'll need to go to a CDL testing center, not a regular MVA. The written Hazmat test can be done at your local MVA.
JM

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026 · FMCSA-compliant content