DOT Hazmat Employee Training Practice Test 2026
Anyone whose job directly affects the safe transport of hazardous materials is a hazmat employee and must be trained under 49 CFR 172.704 within 90 days and at least every 3 years. There is no federal exam: your employer trains you, tests you and certifies your training. This independent practice covers the main topics.
Quick answer
Pass mark: No federal exam. Your hazmat employer must test you by appropriate means and certify your training; any pass mark is set by the employer. It is run by the U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration (PHMSA), Hazardous Materials Regulations (49 CFR Parts 171 to 180). Practise here for free with 75 questions, each with the answer and an explanation. Checked against official sources on October 22, 2026.
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Question 1 of 25
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Answer: A. The hazmat employer
Section 172.702 places the duty on the hazmat employer to ensure each of its hazmat employees is trained, even if someone else delivers the training.
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Question 2 of 25
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Answer: C. The hazmat employer or other public or private sources
The rule says training may be provided by the hazmat employer or by other public or private sources, but the employer stays responsible.
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Question 3 of 25
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Answer: D. Test them by appropriate means on the training subjects
Section 172.702 requires the hazmat employer to ensure each hazmat employee is tested by appropriate means on the subjects in section 172.704.
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Question 4 of 25
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Answer: D. Written, verbal, performance-based, or a mix
PHMSA's training overview says testing can be performance-based, written, verbal or a combination, chosen by the employer.
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Question 5 of 25
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Answer: B. No, the employer trains, tests and certifies its own employees
PHMSA describes employer training, testing and certification but no federal test or card, and DOT does not pre-approve most trainers or programs.
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Question 6 of 25
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Answer: B. General awareness and familiarization training
Section 172.704 lists general awareness and familiarization, function-specific, safety, security awareness and, when needed, in-depth security training.
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Question 7 of 25
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Answer: C. The hazmat rules that apply to the tasks the employee actually does
Function-specific training teaches the requirements of the Hazardous Materials Regulations that apply to the functions each employee performs.
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Question 8 of 25
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Answer: B. Emergency response information, protection from hazards, and how to avoid accidents
Safety training covers emergency response information, measures to protect employees from workplace hazards, and methods to avoid accidents.
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Question 9 of 25
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Answer: C. Security risks in hazmat transport and how to recognize and respond to possible threats
Every hazmat employee needs security awareness training on transport security risks and how to recognize and respond to possible security threats.
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Question 10 of 25
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Answer: A. Those covered by a security plan under Subpart I
Section 172.704 requires in-depth security training only for hazmat employees of employers that must have a security plan under Subpart I.
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Question 11 of 25
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Answer: C. They may do hazmat tasks under the direct supervision of a properly trained employee
The rule lets new employees perform hazmat functions before training only under the direct supervision of a properly trained and knowledgeable hazmat employee.
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Question 12 of 25
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Answer: A. Within 90 days after employment
Section 172.704 says training must be completed within 90 days after employment or after a change in job function.
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Question 13 of 25
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Answer: A. At least once every three years
Section 172.704 requires each hazmat employee to receive the required training at least once every three years.
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Question 14 of 25
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Answer: B. From the date of the most recent training
PHMSA says retraining is required at least once every three years, counted from the date of the employee's most recent training.
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Question 15 of 25
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Answer: C. Only for the parts that cover the required DOT topics
Training for OSHA or EPA rules can count only to the extent it covers the components required by 172.704; any gaps need more training.
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Question 16 of 25
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Answer: A. The preceding three years
The hazmat employer must create and keep a record of current training for each hazmat employee covering the preceding three years.
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Question 17 of 25
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Answer: A. 90 days
Records must be kept while the person works as a hazmat employee and for 90 days after they leave that employer.
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Question 18 of 25
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Answer: A. A certification that the employee has been trained and tested
The record must include the employee's name, latest training date, the materials, the trainer's name and address, and a certification of training and testing.
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Question 19 of 25
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Answer: D. The hazmat employer, or an outside source it designates
PHMSA says the employer certifies the training and testing, although it may designate an outside source to certify on its behalf.
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Question 20 of 25
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Answer: B. A worker who loads, unloads or prepares hazardous materials for shipment
PHMSA lists people who load, unload or handle hazmat, prepare it for shipment, or drive vehicles carrying it as hazmat employees.
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Question 21 of 25
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Answer: B. Yes, self-employed people can be both hazmat employer and hazmat employee
PHMSA says hazmat employers include self-employed persons such as owner-operators, who must train themselves and keep records.
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Question 22 of 25
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Answer: B. No, the employer must decide what other training is needed
PHMSA notes that a CDL hazmat or tank endorsement does not automatically cover every function, so employers must check what more training is needed.
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Question 23 of 25
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Answer: C. Yes, if a current training record is obtained
PHMSA says training from a previous employer or source can count toward the requirements if a current record of that training is obtained.
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Question 24 of 25
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Answer: C. Class 1
Section 173.2 lists explosives as Class 1, with Divisions 1.1 through 1.6 based on the type of explosive hazard.
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Question 25 of 25
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Answer: B. Explosives with a mass explosion hazard
Division 1.1 is explosives with a mass explosion hazard, the most severe of the explosive divisions in section 173.2.
Keyboard: 1–4 to answer, Enter for the next question.
The real test: No federal exam. Your hazmat employer must test you by appropriate means and certify your training; any pass mark is set by the employer.
What to know before the test
- Hazmat training has these parts: general awareness and familiarization, function-specific, safety, security awareness, and in-depth security training when a security plan is required.
- New employees, or employees changing jobs, must finish training within 90 days. Until then they may do hazmat tasks only under the direct supervision of a trained employee.
- Recurrent training is required at least once every three years, counted from the date of the most recent training.
- The employer must test each hazmat employee by appropriate means, such as written, verbal or performance-based testing, even when an outside source does the training.
- DOT does not pre-approve or certify most hazmat trainers or programs. The employer decides who is qualified to train.
- Training records cover the preceding three years and are kept for 90 days after the employee leaves.
Frequently asked questions
Who needs DOT hazmat training?
Every hazmat employee: anyone whose work directly affects hazmat transport safety, such as people who load, unload, handle or prepare hazmat for shipment, sign shipping papers or drive vehicles carrying it. Self-employed owner-operators are included.
Is there an official DOT hazmat test?
No federal test or card. Your hazmat employer must test you by appropriate means, certify that you were trained and tested, and keep a record. Any pass mark is set by the employer.
How often is hazmat training required?
Within 90 days of starting a hazmat job or changing job functions, and then at least once every three years.
Does OSHA or a CDL hazmat endorsement count as DOT hazmat training?
Only partly. OSHA or EPA training counts only for the parts that match the DOT topics, and a CDL endorsement does not automatically cover every task. Your employer must fill any gaps.
Is this practice test official?
No. It is independent practice written from 49 CFR and PHMSA guidance. It is not connected to DOT, PHMSA or any employer.
Sources
- 49 CFR 172.704: Training requirements
- 49 CFR 172.702: Applicability and responsibility for training and testing
- PHMSA: Hazmat training requirements for industry
- PHMSA: Hazmat Transportation Training Requirements (PDF)
- 49 CFR 173.2: Hazardous materials classes and index to hazard class definitions
- 49 CFR 172.202: Description of hazardous material on shipping papers
- 49 CFR 172.604: Emergency response telephone number
- 49 CFR 172.301: General marking requirements for non-bulk packagings
- 49 CFR 172.406: Placement of labels
- 49 CFR 172.504: General placarding requirements
- 49 CFR 172.516: Visibility and display of placards
- 49 CFR 177.817: Shipping papers (highway)
- PHMSA: Emergency Response Guidebook (ERG)
- PHMSA: 2024 ERG overview (PDF)