Quick answer: Transporting hazardous materials in the US can require three layers of authority: the federal PHMSA Hazardous Materials Registration (a broad annual fee-and-record program), the FMCSA Hazardous Materials Safety Permit (for the most dangerous materials only, with added security and tracking duties), and state hazmat permits in a number of states. Canadian carriers hauling qualifying hazmat into the US must meet these US requirements in addition to Canadian TDG. The 2026-2027 PHMSA registration year runs July 1, 2026–June 30, 2027.
Key Takeaways
- PHMSA hazmat registration applies to a broad set of activities — including any quantity of a material that requires placarding.
- 2026-2027 PHMSA fees: $275 + $25 for small business/nonprofit; $2,575 + $25 for large entities; registration year is July 1, 2026–June 30, 2027.
- The FMCSA Safety Permit is a separate, stricter permit for the most dangerous materials only, with security-plan, route, and tracking obligations.
- Everyone who needs an FMCSA Safety Permit also needs PHMSA registration; many carriers need only PHMSA registration.
- Canadian cross-border carriers must meet US hazmat rules for the US leg, on top of Canadian TDG — and a number of states add their own hazmat permits.
Hazmat is one of the most heavily regulated things a carrier can haul, and the US layers federal and state requirements on top of each other. For cross-border carriers the trap is assuming Canadian TDG compliance carries into the US — it does not. Here is how the US pieces fit together.
Layer 1: PHMSA Hazardous Materials Registration
The PHMSA Hazardous Materials Registration is the baseline federal requirement. You must register if you offer for transport or transport in commerce:
- A highway route-controlled quantity of Class 7 (radioactive) material
- More than 25 kg of Division 1.1, 1.2, or 1.3 explosives
- More than 1 litre of a material poisonous by inhalation in Hazard Zone A
- Hazmat in bulk packaging with a capacity of 3,500 gallons or more for liquids or gases
- A non-bulk shipment of 5,000 pounds or more of a single placarded hazmat class
- Any quantity of a material that requires placarding
That last item is broad — many everyday hazmat loads require placarding, so a large share of hazmat carriers must register.
Fees (2026-2027): small businesses and not-for-profits pay $275 + $25 processing; larger entities pay $2,575 + $25. The registration year runs July 1, 2026 to June 30, 2027, and the registration and payment are due before July 1 (or before you first engage in a regulated activity). PHMSA has moved to online-only registration through the Department's MOTUS system, with early registration for 2026-2027 having opened June 1, 2026. Registration is annual — it must be renewed each year.
Layer 2: FMCSA Hazardous Materials Safety Permit
The FMCSA Hazardous Materials Safety Permit (HMSP) is a separate, more demanding authorization required only for the most dangerous materials — certain radioactive, large-quantity explosive, and toxic-by-inhalation shipments. It is not a fee program like PHMSA registration; it is tied to the carrier's safety record and carries added obligations such as maintaining a security plan, doing route planning, and tracking shipments.
The key relationship: every carrier that needs an FMCSA Safety Permit also needs a PHMSA registration, but the reverse is not true — many carriers need only the PHMSA registration. Determine whether your specific materials cross the FMCSA Safety Permit threshold; most general hazmat does not, but the materials that do carry significant extra duties.
Layer 3: State hazmat permits
On top of the federal layers, a number of US states require their own hazmat permits or registrations, and some require material-specific permits. These vary state by state in scope, fee, and renewal cycle, and are commonly handled through registration services. A carrier running hazmat across several states has to track each state's requirement and renewal separately — a real administrative load that is easy to let slip.
Don't forget the driver side
US hazmat also lands on the driver: a hazardous materials endorsement (H or X) on the CDL, which requires a TSA security threat assessment, plus hazmat training and function-specific training that must be current. For cross-border operations, drivers and the carrier must satisfy both US and Canadian requirements for their respective legs.
How TruckerPro helps
US hazmat compliance is a stack of annual, expiring authorizations — PHMSA registration renews every registration year, the FMCSA Safety Permit and its security plan need upkeep, state permits each have their own renewal, and driver hazmat endorsements and training expire. That is precisely the kind of multi-clock compliance that gets missed. TruckerPro's safety and compliance tools and driver document management track each registration, permit, and driver hazmat credential with its own expiry alert, so nothing lapses between renewal cycles. If your US lanes also cross weight-distance-tax states, see the guides for New York, Kentucky, and Connecticut.
This article is editorial guidance for carriers, including Canadian cross-border fleets, and is not legal or regulatory advice. Hazmat rules are complex and carry serious penalties — verify current requirements, thresholds, and fees with PHMSA, FMCSA, and the relevant state agencies before transporting hazardous materials.
Source: PHMSA — Hazardous Materials Registration Overview.
Frequently asked questions
Who must register with PHMSA for hazmat?
You must file a PHMSA Hazardous Materials Registration if you offer for transport or transport in commerce any of the following: a highway route-controlled quantity of Class 7 (radioactive) material; more than 25 kg of Division 1.1, 1.2, or 1.3 explosives; more than 1 litre of a material poisonous by inhalation in Hazard Zone A; hazardous material in bulk packaging with a capacity of 3,500 gallons or more for liquids or gases; a non-bulk shipment of 5,000 pounds or more of a single placarded hazmat class; or any quantity of a material that requires placarding. This applies to Canadian carriers hauling qualifying hazmat into the US, not just US-based carriers.
How much does PHMSA hazmat registration cost for 2026-2027?
For the 2026-2027 registration year, small businesses and not-for-profits pay $275 plus a $25 processing fee (total $300), and larger entities pay $2,575 plus the $25 processing fee (total $2,600). The registration year runs July 1, 2026 through June 30, 2027, and the registration and payment must be submitted before July 1 or before you engage in a regulated activity, whichever is later. Confirm current fees on the PHMSA registration site.
What is the difference between PHMSA registration and the FMCSA Hazardous Materials Safety Permit?
PHMSA registration is a fee-and-record program that applies to a broad set of hazmat activities. The FMCSA Hazardous Materials Safety Permit (HMSP) is a separate, more stringent permit required only for the most dangerous materials — certain radioactive, large explosive, and toxic-by-inhalation shipments — and it carries added obligations like a security plan, route planning, and shipment tracking. All carriers that need an FMCSA Safety Permit must also have a PHMSA registration, but many carriers need only the PHMSA registration.
Do Canadian carriers need US hazmat registration and permits?
Yes. If a Canadian carrier transports qualifying hazardous materials in commerce in the United States, it must comply with US hazmat rules — including PHMSA registration and, for the most dangerous materials, the FMCSA Safety Permit — in addition to Canadian TDG requirements for the Canadian portion of the trip. Cross-border hazmat means meeting both countries' regimes, and the US registration is a common gap for carriers who assume TDG covers them.
How do I register for PHMSA hazmat, and when?
PHMSA has moved to online-only registration and payment through the Department's MOTUS system. For the 2026-2027 registration year, early registration opened June 1, 2026, and the completed registration statement and payment are due before July 1, 2026, or before you first engage in a regulated activity. Registration is annual, so it must be renewed each registration year.
Are there state hazmat permits on top of the federal ones?
Yes. A number of US states require their own hazmat permits or registrations — and some require specific permits for particular materials — on top of the federal PHMSA registration and any FMCSA Safety Permit. These state requirements vary and are commonly handled through registration services. Carriers running hazmat across multiple states need to track each state's requirement, its fee, and its renewal date separately.