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Texas Hazmat Test

We've seen the Port of Houston's hazmat traffic up close – this test helps you handle it.

147

Questions

80%

To Pass

Minutes

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

Opens in a practice window — choose your mode inside.

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

Last verified: August 2026

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

About the Texas Hazmat Test

Texas moves more hazardous materials than any other state. From the refineries in Beaumont to the chemical plants along the Gulf Coast, you'll haul loads that demand serious knowledge. Our practice test covers everything you need for the DMV exam.

You'll drive on I-10 through Houston's congested ship channel area. You'll cross I-35 near Austin with tankers full of flammable liquids. Texas summers push temperatures past 100°F – that changes how you handle certain hazmat. You need to know the rules for placarding, shipping papers, and emergency response.

This test uses real examples from Texas roads. We don't waste your time with fluff. Each question comes straight from the Texas CDL handbook. You'll see the same format you'll get at the DPS office. Take the test, study your weak spots, and pass on your first try.

Don't let the hazmat endorsement scare you. It's a 30-question test with a 40-minute time limit. You need 24 correct answers to pass. Our practice test builds your confidence so you walk into the DPS ready.

Topics Covered

✓Hazard classes – Texas ships everything from gasoline to chlorine on I-10 and I-45.

✓Placarding requirements – Proper placards keep you legal when hauling through Houston's tunnels.

✓Shipping papers – You must carry them in the cab, not the trailer, for Texas DPS inspections.

✓Loading and unloading – Secure your load for those bumpy farm-to-market roads.

✓Emergency response – Know the ERG guide for spills near Texas water sources.

✓Security awareness – Report suspicious activity around Texas chemical facilities.

Study Tips

Start with the Texas CDL Handbook – it's free online from DPS. Focus on Chapter 9 (Hazardous Materials). Don't skip the placarding tables. They ask specific questions about which placard goes with which hazard class.

Take our practice test multiple times. Each attempt shuffles the questions. Pay attention to the ones you miss. The actual Texas test pulls from the same pool. We also recommend studying the Emergency Response Guidebook – they reference it on the exam.

Set a timer for 40 minutes when you practice. The real test moves fast. Mark questions you're unsure about and come back to them. You'll save time and avoid careless mistakes.

Texas Specific Information

You take your Texas Hazmat test at any DPS Mega Center or CDL testing location. You must schedule an appointment online at the DPS website – walk-ins don't work. Bring your current CDL, proof of Texas residency, and your Social Security card.

The fee for the Hazmat endorsement is $64. You also need a TSA threat assessment before you take the test. That costs $125 and takes 2-6 weeks. Get that done first or you can't test. Start the TSA process at universalenroll.dhs.gov.

After you pass the knowledge test, you get a temporary Hazmat endorsement on your CDL. The real one arrives by mail within 2-3 weeks. Your endorsement is valid for 5 years, but you must pass a recurring TSA check every 5 years too.

Frequently Asked Questions

Do I need a TSA background check for a Texas Hazmat endorsement?

Yes, you do. You've got to pass a TSA threat assessment before you can even take the knowledge test. Start that process at universalenroll.dhs.gov. It costs $125 and usually takes 2 to 6 weeks. Don't wait – get it done first.

What's the passing score for the Texas Hazmat test?

You need 80%, which means 24 correct out of 30 questions. The time limit is 40 minutes, but most people finish in 20. Don't rush too much, though – read each question carefully.

How long is the Texas Hazmat endorsement valid?

It's valid for 5 years. You'll renew it when you renew your CDL, but you also have to pass another TSA threat assessment every 5 years. Keep your TSA letter handy.

Can I take the Hazmat test online in Texas?

No, you can't. You have to take it in person at a DPS office. Schedule an appointment at the DPS website. No walk-ins accepted. Bring your CDL and TSA approval letter.

What documents do I need for the Texas Hazmat endorsement?

You need your current Texas CDL, proof of Texas residency (like a utility bill), your Social Security card, and your TSA threat assessment approval letter. The DPS also requires a valid US passport or birth certificate for identity – check their list online.

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

Last verified: August 2026 · FMCSA-compliant content