Shipping Hazardous Materials by Road: A 49 CFR Readiness Guide for Shippers
As the shipper you classify, package, mark, document and train; the carrier only moves what you certify.
In Short
- Classification drives everything.
- Keep shipping papers 2 years.
- Train within 90 days.
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- Which rules reach your plant
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The Chemical Manufacturing Guide
Approved formulas. Tested batches. Correct labels out the door.
If you offer hazardous materials for transport by road in the United States, the Hazardous Materials Regulations in 49 CFR parts 171 to 180 apply to you as the shipper, not only to the carrier. This guide follows one shipment from classification to handover, then the training and records behind it. It is orientation, not regulatory advice; your trained hazmat employees make the decisions. Sources checked 4 Oct 2026.
Classify before anything else
Each material is assigned a hazard class, proper shipping name, UN identification number and packing group using the Hazardous Materials Table in 49 CFR 172.101. The transport section of a safety data sheet is a starting point, not the decision, and a formulation change can change the classification.
One shipment, step by step
- 1Classify: class, UN number, packing groupTrained employee
- 2Authorised packaging, marks and labelsShipping
- 3Shipping paper and emergency informationShipping
- 4Certification signed; placards offered if requiredTrained employee
More on classify before anything else
Every later step depends on getting this right.
Package, mark and label
Use packaging authorised for the material and packing group, closed as the packaging maker instructs. Mark each package with the proper shipping name and UN number and apply the hazard labels Part 172 requires.
More on package, mark and label
Placards depend on the material and quantity, and for highway shipments the shipper provides the required placards to the motor carrier unless the vehicle is already placarded (49 CFR 172.506).
Shipping Papers and Emergency Information
The shipping paper gives the basic description in the required order, the quantity and the shipper's certification (49 CFR 172.204), signed by a principal, officer, partner, employee or agent of the shipper. Emergency response information must be available with the shipment (49 CFR 172.602), with an emergency response telephone number that is monitored at all times the material is in transportation (49 CFR 172.604).
More on shipping Papers and Emergency Information
Keep a copy for two years after the carrier accepts the material, or three years for hazardous waste (49 CFR 172.201(e)).
Training is a legal duty
Every hazmat employee needs general awareness, function-specific, safety and security awareness training, plus in-depth security training where a security plan applies. A new or reassigned employee may work under direct supervision, but training must be completed within 90 days and refreshed at least every three years.
Records and how long to keep them
| Record | Keep |
|---|---|
| Shipping paper | 2 years after carrier acceptance |
| Shipping paper, hazardous waste | 3 years |
| Training record | During employment plus 90 days |
- Shipping paper
- Keep
- 2 years after carrier acceptance
- Shipping paper, hazardous waste
- Keep
- 3 years
- Training record
- Keep
- During employment plus 90 days
More on training is a legal duty
Training records covering the last three years are kept during employment and for 90 days after (49 CFR 172.704).
Registration, Security Plans and Change
Depending on materials and quantities, some shippers must register with PHMSA under 49 CFR part 107 subpart G (for example, certain bulk, explosive or highway route-controlled radioactive shipments, 107.601), and some need a security plan under part 172 subpart I (172.800). When a product, package or supplier changes, re-check classification and packaging before the next shipment.
More on registration, Security Plans and Change
Your designated hazmat employees decide; software does not classify materials.
Questions
Who signs the shipper's certification?
A principal, officer, partner, employee or agent of the shipper signs it (49 CFR 172.204(d)). Anyone doing that job is a hazmat employee who needs the training in 172.704.
How long do we keep shipping papers?
Two years after the initial carrier accepts the material, or three years for hazardous waste, under 49 CFR 172.201(e).
How often is hazmat training needed?
Within 90 days of hire or a change of function, then at least every three years, under 49 CFR 172.704.
Where does V5 fit?
V5 keeps safety data sheets, product records, lots, labels, shipments and training records linked. Your trained hazmat employees classify, package and certify each shipment.
Practical orientation, not legal advice. Rules differ by jurisdiction; your quality and compliance team decides what applies.
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