What is DOT hazmat certification and who has to have it?
DOT hazmat training is the employee training required by 49 CFR Part 172 Subpart H, administered by the Pipeline and Hazardous Materials Safety Administration. It applies to every hazmat employee — anyone who loads, unloads, handles, prepares, packages, labels, marks, placards, transports or otherwise directly affects the safety of hazardous materials in transportation, including people who only complete shipping papers. Training has five elements: general awareness and familiarisation, function-specific training for the tasks you actually perform, safety training, security awareness training, and driver training where applicable. The employer must test the employee, certify the training in writing and keep the record. Recurrent training is required at least once every three years, and again whenever the employee's function changes or the regulations change materially.
- DOT hazmat training is required by 49 CFR Part 172 Subpart H for every hazmat employee, including shipping-paper preparers.
- Five elements: general awareness, function-specific, safety, security awareness and driver training where applicable.
- The employer tests, certifies in writing and keeps the record — DOT issues no certificate itself.
- Recurrent training is required at least every three years, and immediately on a function change.
DOT Hazmat at a glance
| Cost | Set by the training provider or delivered in-house by the employer, so it varies by provider — DOT publishes no fee schedule |
| Duration | Varies with the employee's function; general awareness and security awareness are short, function-specific training is as long as the job requires |
| Issued by | The employer, certifying training conducted under 49 CFR Part 172 Subpart H |
| Format | Classroom, online or in-house training followed by testing and written certification |
| Expiry | Recurrent training required at least every 3 years, and sooner on a function or regulatory change |
| Who needs it | Every hazmat employee: shippers, packers, loaders, freight handlers, shipping-paper preparers and hazmat drivers |
| Legal basis | 49 CFR Part 172 Subpart H (§§172.700–172.704) |
| New hires | May perform hazmat functions under direct supervision for up to 90 days while training is completed |
Sources: PHMSA, Hazardous Materials Training Requirements · PHMSA, Pipeline and Hazardous Materials Safety Administration. Reviewed August 2026 by the GlobalCybers team.
How DOT Hazmat Training Is Certified
Testing plus a written employer certification
The rule requires the hazmat employee to be tested on the training and the employer to certify the training in writing and retain the record for as long as the employee is employed in that function and for 90 days afterwards. The record must show the employee's name, the most recent training completion date, a description or copy of the materials, the trainer's name and address, and the certification that the employee has been trained and tested.
The five training elements
How does hazmat training affect transport and warehouse pay?
Hazmat training is a condition of doing a specific class of work rather than a wage band. Its effect is on assignment: shippers, terminals and carriers cannot lawfully put untrained employees on hazardous materials functions.
GlobalCybers reimburses certification fees after a successful permanent placement through our network.
What DOT Hazmat Training Covers, Required Elements
The Hazardous Materials Table
172.101 is the spine of the whole regulation: proper shipping name, hazard class, identification number, packing group, labels, special provisions, packaging sections and quantity limitations, all read across one row.
Marking, Labelling & Placarding
What goes on the package, what goes on the transport vehicle, when the 1,000-pound placarding threshold applies, and the Table 1 materials that must be placarded in any quantity.
Shipping Papers
The required sequence and content of a hazmat entry, emergency response telephone number requirements, shipper's certification, and where the paperwork must be kept in the vehicle.
Packaging
UN specification packagings, the meaning of the code stamped on the box or drum, closure instructions, and the shipper's duty to ensure the packaging is authorised for the material.
Emergency Response
The emergency response information that must accompany the shipment, use of the Emergency Response Guidebook, and immediate and written incident-reporting obligations.
Security Awareness
Recognising security risks in hazmat transportation, and the additional in-depth security training required where the employer must have a security plan under Part 172 Subpart I.
How do you get DOT hazmat trained and certified?
Determine whether you are a hazmat employee
The definition is broad: it captures anyone who directly affects hazardous materials transportation safety, including people who never touch the freight but do prepare shipping papers, and people who load, unload, handle, package, mark, label or placard. If your job touches any of that, the training requirement applies to you.
Complete the five training elements
General awareness and familiarisation, function-specific training for your actual tasks, safety training, security awareness training, and driver training where applicable. Function-specific training is the part that has to be tailored — a shipping clerk and a tanker loader need genuinely different content.
Get tested and certified by your employer
The regulation requires testing and a written employer certification recording your name, the training date, the materials used, the trainer's details and the certification itself. New hires may perform hazmat functions under direct supervision for up to 90 days while this is completed.
Retrain at least every three years
Recurrent training is required at least once every three years. It is also required whenever your function changes so that new function-specific content applies, and after regulatory changes material to your job. Employers keep the record for the duration of employment in the function plus 90 days.
49 CFR Part 172 Subpart H — Training Is Compulsory
The hazardous materials regulations prohibit an employer from allowing a hazmat employee to perform any hazmat function unless the employee has been trained and tested as required, except during the 90-day window when a new or newly assigned employee may work under the direct supervision of a properly trained employee. The duty and the record-keeping obligation sit with the employer, and PHMSA and FMCSA both enforce it — untrained-employee findings are a routine outcome of hazmat inspections.
DOT Hazmat, Frequently Asked Questions
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