PHMSA hazmat registration: who needs it and how to file

Who must register

Under 49 CFR 107.601, you must register if you offer or transport any of these:

• Any quantity of hazmat that requires placards (the most common trigger for trucking companies).
• More than 25 kg (55 lb) of a Division 1.1, 1.2 or 1.3 explosive in one vehicle.
• More than 1 L (1.06 quarts) per package of a material extremely toxic by inhalation (hazard zone A).
• A highway route-controlled quantity of Class 7 (radioactive) material.
• A bulk packaging of 13,248 L (3,500 gallons) or more for liquids or gases, or more than 13.24 cubic meters (468 cubic feet) for solids.
• A non-bulk shipment of 2,268 kg (5,000 lb) gross or more of one class that requires placards.

Not required (107.606): government agencies, an owner-operator leased for 30 days or more to a registered motor carrier (the carrier registers), and farmers for placarded loads that directly support their own farm.

Fees and the registration year

• Totals from PHMSA include the $25 processing fee per statement (49 CFR 107.612: $250 or $2,575 per year plus $25).
• "Small business" means you meet the SBA size standard for your NAICS industry code.
• Each registration year runs July 1 to June 30. Register by June 30, or before you start hauling regulated hazmat, whichever is later (107.608).
• A 2024 proposal to raise the fees was withdrawn in November 2025, so these amounts still apply.

How to register and what to keep

1. Register online on PHMSA's hazmat registration site. Since Sept. 3, 2026, payment is electronic only (card or ACH); paper checks are no longer accepted.
2. Print the Certificate of Registration once payment clears. That's immediate for a card and takes about 8 days for ACH, per PHMSA.
3. Keep a copy of the registration statement and certificate at your main place of business for 3 years (paper or electronic).
4. Carry the current certificate, or another document showing your U.S. DOT Hazmat Reg. No., in each truck and truck tractor (not trailers), and show it to inspectors on request (107.620).

When you also need an FMCSA hazmat safety permit

A few high-risk materials need an FMCSA Hazardous Materials Safety Permit (HMSP, 49 CFR Part 385 Subpart E) on top of PHMSA registration. They include:

• more than 25 kg of Division 1.1, 1.2 or 1.3 explosives, or placarded Division 1.5,
• a highway route-controlled quantity of radioactive material,
• more than 1 L per package of a zone A inhalation hazard, or zone B in bulk, or zone C or D in packaging of 3,500 gallons or more,
• methane or LNG in bulk packaging of 3,500 gallons or more.

To get the HMSP you need a Satisfactory safety rating, crash and out-of-service rates outside the worst 30% nationally, the right insurance, a written security program, and PHMSA registration. You apply with Form MCS-150B, and the permit lasts 2 years.

Training, security plans and the driver's H endorsement

• Hazmat training (49 CFR 172.704): every hazmat employee, drivers included, needs training within 90 days of hire or a job change, and a refresher at least every 3 years. Keep training records.
• Security plan (49 CFR 172.800): required for certain materials and amounts, such as any amount of Division 1.1 to 1.3 explosives, inhalation hazards, and placarded loads of some other classes.
• Driver's H endorsement: separate from your company's registration. The state can't issue or renew it without a TSA security threat assessment (or a valid TWIC), and it must be renewed at least every 5 years (49 CFR 383.141). See our hazmat endorsement guide.
• Penalties: PHMSA civil penalties for hazmat violations, including failing to register, can reach $102,348 per violation (49 CFR 107.329).

Questions carriers ask