Hazardous Materials CDL Practice Test
Practice with real HAZMAT exam questions and detailed explanations. Federally standardized — the same in all 50 states. Rated 4.8 stars by 1,000+ drivers.
Written by CDL holders and exam prep experts · Updated April 2026
Free Questions
10
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
Prerequisites
Valid CDL license required - can be added to any CDL class
What is the Hazardous Materials Endorsement?
The HAZMAT (Hazardous Materials) endorsement allows you to transport dangerous goods that could pose a risk to health, safety, property, or the environment. This includes chemicals, explosives, flammable liquids, and other regulated materials.
TSA background check required (additional requirements apply)
Topic Breakdown
Hazardous Materials Regulations
~9 questions
- DOT regulations and requirements
- Hazard classes and divisions
- Shipping papers and manifests
Safety Procedures
~7 questions
- Loading and unloading procedures
- Emergency response protocols
- Personal protective equipment
Vehicle Requirements
~6 questions
- Placarding requirements
- Vehicle inspection procedures
- Equipment specifications
Documentation
~5 questions
- Shipping papers
- Emergency response information
- Record keeping requirements
Emergency Response
~3 questions
- Spill containment procedures
- Emergency contacts and reporting
Free Practice Questions
10 questionsQuestion 1 of 10
Which of the 9 hazard classes may NOT be transported in a temperature-controlled trailer?
Browse HAZMAT Questions
- 1. Which of the 9 hazard classes may NOT be transported in a temperature-controlled trailer?
- 2. Your vehicle contains explosives, oxidizer, or flammables. No one may smoke within ____ feet of the vehicle.
- 3. It is recommended that a driver refrain from smoking or using an open flame within 25 feet of:
- 4. A vehicle placarded for hazardous materials must have placards on ____ sides.
- 5. What is the purpose of placards?
- 6. Regarding placard table 2, at which weight limit are you required to use placards?
- 7. Which of the following is true of the Emergency Response Guidebook used by first responders to HazMat situations?
- 8. Nitric acid should not be loaded:
- 9. Which hazardous materials classes must never be loaded under class 8 corrosive liquids?
- 10. You are transporting hazardous materials. When you are not behind the wheel, the shipping papers must be on the driver's seat or:
Study Tips
- 1Focus on DOT regulations - they're heavily tested
- 2Memorize the 9 hazard classes and their symbols
- 3Practice reading shipping papers and manifests
- 4Understand emergency response procedures
- 5Review state-specific HAZMAT routing restrictions
- 6Complete TSA background check and fingerprinting at authorized centers
CDL Requirements by State
The HAZMAT knowledge test is federally standardized, so the questions are the same nationwide. Age, renewal, and training rules vary by state — find yours below.
| State | Min Age (Intra / Inter) | Renewal | ELDT |
|---|---|---|---|
| California | 18 / 21 | 5 yrs | Required |
| Texas | 18 / 21 | 4 yrs | Required |
| Florida | 18 / 21 | 4 yrs | Required |
| New York | 18 / 21 | 8 yrs | Required |
| Pennsylvania | 18 / 21 | 4 yrs | Required |
| Illinois | 18 / 21 | 4 yrs | Required |
| Ohio | 18 / 21 | 4 yrs | Required |
| Georgia | 18 / 21 | 5 yrs | Required |
| Michigan | 18 / 21 | 4 yrs | Required |
| North Carolina | 18 / 21 | 5 yrs | Required |
| Alabama | 18 / 21 | 4 yrs | Required |
| Alaska | 18 / 21 | 5 yrs | Required |
| Arizona | 18 / 21 | 5 yrs | Required |
| Arkansas | 18 / 21 | 4 yrs | Required |
| Colorado | 18 / 21 | 5 yrs | Required |
| Connecticut | 18 / 21 | 4 yrs | Required |
| Delaware | 18 / 21 | 8 yrs | Required |
| Hawaii | 18 / 21 | 4 yrs | Required |
| Idaho | 18 / 21 | 4 yrs | Required |
| Indiana | 18 / 21 | 4 yrs | Required |
| Iowa | 18 / 21 | 5 yrs | Required |
| Kansas | 18 / 21 | 4 yrs | Required |
| Kentucky | 18 / 21 | 4 yrs | Required |
| Louisiana | 18 / 21 | 4 yrs | Required |
| Maine | 18 / 21 | 6 yrs | Required |
| Maryland | 18 / 21 | 8 yrs | Required |
| Massachusetts | 18 / 21 | 5 yrs | Required |
| Minnesota | 18 / 21 | 4 yrs | Required |
| Mississippi | 18 / 21 | 4 yrs | Required |
| Missouri | 18 / 21 | 6 yrs | Required |
| Montana | 18 / 21 | 4 yrs | Required |
| Nebraska | 18 / 21 | 5 yrs | Required |
| Nevada | 18 / 21 | 4 yrs | Required |
| New Hampshire | 18 / 21 | 5 yrs | Required |
| New Jersey | 18 / 21 | 4 yrs | Required |
| New Mexico | 18 / 21 | 4 yrs | Required |
| North Dakota | 18 / 21 | 5 yrs | Required |
| Oklahoma | 18 / 21 | 4 yrs | Required |
| Oregon | 18 / 21 | 8 yrs | Required |
| Rhode Island | 18 / 21 | 5 yrs | Required |
| South Carolina | 18 / 21 | 5 yrs | Required |
| South Dakota | 18 / 21 | 5 yrs | Required |
| Tennessee | 18 / 21 | 5 yrs | Required |
| Utah | 18 / 21 | 5 yrs | Required |
| Vermont | 18 / 21 | 4 yrs | Required |
| Virginia | 18 / 21 | 8 yrs | Required |
| Washington | 18 / 21 | 5 yrs | Required |
| West Virginia | 18 / 21 | 5 yrs | Required |
| Wisconsin | 18 / 21 | 4 yrs | Required |
| Wyoming | 18 / 21 | 4 yrs | Required |
Career Opportunities
Want the full background on this endorsement?
Read the complete Hazardous Materials endorsement guide →Frequently Asked Questions
First, you need a valid CDL. Then pass the HAZMAT knowledge test (30 questions), complete a TSA background check, and fulfill all required documentation. The endorsement is subject to TSA renewal cycles (typically every 5 years).
HAZMAT Study Resources
Be Ready for Your HAZMAT Test
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