The short answer
If your employees load, pack, mark, label or prepare shipping papers for hazardous materials — even entirely on a client's behalf — your company is a hazmat employer and those people are hazmat employees. 49 CFR 172.702(b) puts the duty to train, test and certify on the employer of the person performing the function. A client's own training programme does not discharge it, and a contract cannot move it.
Why the duty does not travel with the freight
The regulation defines a hazmat employer as a person who uses one or more employees in connection with transporting hazardous materials in commerce, causing them to be transported, or representing that a container is qualified for that use. Nothing in that definition asks who owns the goods.
So the ordinary 3PL arrangement produces two hazmat employers for the same shipment: your client, for whatever its own people do, and you, for what yours do. Both owe training to their own employees, and both keep their own records.
It can allocate cost, indemnity and commercial responsibility between the two companies. It cannot make your untrained employee compliant, and it will not be the document an inspector asks for. What they ask for is your 172.704(d) record for the person who packed the box.
The 3PL functions that are covered
| What your team does | Function under 171.8 |
|---|---|
| Kitting and packing to a client's spec | Preparing hazardous materials for transportation; selecting a packaging represented as qualified |
| Applying marks and labels | Marking and labelling |
| Generating shipping papers in your WMS | Preparation for transportation; potentially signing the shipper's certification |
| Cross-docking and consolidation | Handling and loading; segregation decisions |
| Storing between legs | Storage incidental to transportation |
| Rejecting or quarantining a non-compliant inbound | Responsibility for the safety of the transportation |
Scoping function-specific training across many clients
The instinct is to scope training per client. That does not scale and it is not what the rule asks. Function-specific training attaches to the function the employee performs. Packing to UN performance specifications is the same function whether the box says client A or client B.
What genuinely varies is the material class. A client who brings bulk packagings, radioactive materials, explosives or air freight brings work outside a general baseline, and that specific work needs specific training before anyone touches it. General awareness vs function-specific.
Train every operator on the common baseline. Keep a short, dated note of which material classes each site is authorised to handle, and treat onboarding a client outside that list as a training event before it is an operational one.
What your file needs to show
Your own 172.704(d) record for each of your employees — not your client's. Name, completion date, a description of the materials, the trainer's name and address, and your certification that the person was trained and tested. Kept for as long as they are your hazmat employee plus 90 days. Recordkeeping rules · what gets asked in an inspection.
Client audits ask for the same thing, usually sooner than regulators do. A 3PL that can produce a clean per-employee file on request wins renewals on it.
Common questions
Our client is the shipper. Is the training their problem?
We only provide labour; the client supplies the procedures.
Can we accept the client's training instead of our own?
We handle dozens of clients with different materials. How do we scope function-specific training?
Train your operators, hold your own records
Seats you assign yourself, in English or Spanish, each producing a certificate and a 172.704(d) record under your company's file.
More than ten operators, or a purchase order? hello@hazteamready.com.