🚛 Texas CDL Hazmat Endorsement
Texas CDL Hazmat Endorsement — Exam Prep 2026
Prepare for the Texas DPS CDL Hazmat knowledge test with 1,000+ practice questions covering FMCSA regulations, placard rules, shipping papers, and security plans. Free to start. First-time pass rate among app users: 91%.
Free to download · No credit card · iPhone & iPad
Texas CDL Hazmat Test
Administered by Texas DPS
30
Questions
80%
Passing Score
24/30
Correct to Pass
~$11
Endorsement Fee
Texas CDL Hazmat Endorsement — What to Expect
In Texas, CDL licenses — including the Hazmat (H) endorsement — are issued by the Texas Department of Public Safety (DPS). The knowledge test is administered at DPS driver license offices throughout the state. You can schedule an appointment online at dps.texas.gov or visit a walk-in location.
The Texas CDL Hazmat test has 30 questions and requires a minimum 80% passing score — meaning you must answer at least 24 questions correctly. The exam covers FMCSA regulations under 49 CFR, which are the same federal standards tested in all 50 states.
Before the H endorsement can be added to your Texas CDL, you must pass a TSA Security Threat Assessment (background check). Apply at an authorized TSA enrollment center — processing takes 2–4 weeks. Plan ahead and apply before scheduling your written test appointment.
If you fail the knowledge test, Texas allows you to retake it after 24 hours. The endorsement fee is approximately $11, paid separately from the TSA background check fee of $86.50.
What the App Covers
App Features
5 Free Texas CDL Hazmat Practice Questions
No account required. These questions reflect the types of questions on the Texas DPS CDL Hazmat knowledge test.
Q1.Under FMCSA regulations, what is the minimum quantity of a Division 1.1 explosive that requires a placard?
Q2.A Texas CDL driver is hauling 800 lbs of a Class 3 flammable liquid. Is a FLAMMABLE placard required?
Q3.Which document must accompany a hazmat shipment and list the proper shipping name, hazard class, and UN identification number?
Q4.How many questions are on the Texas CDL Hazmat endorsement knowledge test, and what is the minimum passing score?
Q5.A carrier security plan under 49 CFR Part 172 must address which four components?
Study Smarter for the Texas CDL Hazmat Test
The VoltExam CDL Hazmat app covers every topic the Texas DPS tests — from hazmat classes and placard thresholds to security plans and driver responsibilities. Timed exam mode simulates the real test.
Free Trial
$0
First 20 questions per topic, no time limit, no credit card
Monthly
$9.99/mo
Full access. Cancel anytime. Billed monthly through App Store.
Lifetime
$49.99
Pay once, own forever. Best value if your exam is within 3 months.
Free to download · No credit card required
Texas CDL Hazmat — Frequently Asked Questions
How many questions is the Texas CDL hazmat knowledge test?
The Texas CDL Hazmat endorsement knowledge test has 30 questions. You must answer at least 24 correctly — an 80% passing score — to earn the endorsement. The test is administered at Texas DPS driver license offices.
Where do I take the Texas CDL hazmat test?
The Texas CDL Hazmat knowledge test is administered at Texas Department of Public Safety (DPS) driver license offices. You can schedule an appointment online at dps.texas.gov or walk in at select locations. Bring your current CDL and TSA background check approval.
How much does the Texas CDL hazmat endorsement cost?
The Texas CDL Hazmat endorsement fee is approximately $11 for adding or renewing the H endorsement. This fee is paid to the Texas DPS. Note: You also pay separately for the TSA Security Threat Assessment, which is $86.50 paid to the TSA enrollment center.
Do I need a background check for Texas hazmat CDL?
Yes. Federal law requires all CDL Hazmat endorsement holders to pass a TSA Security Threat Assessment (background check) before the H endorsement is added to their CDL. You must apply at an authorized TSA enrollment center — often located at UPS Stores or dedicated enrollment providers. Processing typically takes 2–4 weeks. You can take the written knowledge test while your background check is pending, but the endorsement will not be issued until the TSA clears you.
How long does the Texas hazmat endorsement last?
The Texas CDL Hazmat endorsement is valid for the same period as your CDL — typically 5 years. At renewal, you must pass the Hazmat knowledge test again and complete a new TSA Security Threat Assessment. Plan ahead — the background check processing takes 2–4 weeks, so apply well before your CDL expiration date.
Studying in a Different State?
See the main CDL Hazmat prep page — covers all 50 states