Hazmat Transport

Who this is for: CDL drivers, fleet managers, owner-operators, compliance assistants

Hazmat Incident Reporting Requirements for CDL Carriers

When a hazardous materials incident occurs (spill, fire, accident with hazmat release, or a death/injury involving hazmat), carriers must provide immediate telephone notice to the National Response Center and file a written incident report with PHMSA within 30 days. Failure to report is a federal violation.

Last updated: May 29, 2026

Important Notice

Incident reporting requirements are in 49 CFR Part 171, Sections 171.15 and 171.16. Failure to report a required incident is a federal violation subject to civil penalties. Consult PHMSA guidance and legal counsel for complex incident situations.

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When immediate telephone notification is required (49 CFR 171.15)

Immediate telephone notification to the National Response Center (1-800-424-8802) is required when a person dies, is hospitalized, or is evacuated as a result of exposure to a hazardous material; when a major transportation artery or facility is closed or seriously damaged; when there is a release of radioactive material from a highway route-controlled quantity package; when a fire, explosion, or evacuation involves a hazmat carrier or package; or when a carrier suspects that a shipment constitutes an unacceptable risk to health and safety. Notification must be made as soon as practicable.

When the written 30-day report is required (49 CFR 171.16)

A written hazmat incident report must be filed within 30 days of the incident if: an unintentional release of hazardous materials occurs from a package (including any discharge, emission, or escape during transport); a package is found to be undeclared or misrepresented; a fire, explosion, spillage, or suspected contamination occurs involving a hazmat package; or certain other specified events occur. The report is filed on DOT Form F 5800.1 and submitted to PHMSA. Reports can be filed online through PHMSA's portal.

What information to provide in the immediate notification

When calling the NRC for immediate notification, be prepared to provide: your name and the name of your company; location of the incident; hazardous materials involved (proper shipping name, class, UN number if known); quantity and type of packaging; nature of the incident (fire, spill, accident); number of people injured or killed; estimated damage; and a callback number. NRC will assign a tracking number — keep this number for your records.

Driver responsibilities at the incident scene

The driver must keep bystanders away from the hazmat area, alert emergency responders to the presence and nature of hazmat, provide shipping papers to first responders on arrival, and follow instructions from emergency personnel. If the driver must leave the vehicle for safety reasons, they should remove shipping papers and make them available to responders. The driver should not attempt to contain a hazmat release without proper training and equipment.

Post-incident steps beyond the immediate report

After the initial NRC call and scene response, the carrier's obligations continue. The 30-day written report on DOT Form F 5800.1 must be filed with accurate details — quantities involved, exact materials, nature of the release, injuries or fatalities, and containment steps taken. Keep copies of all shipping papers from the incident. If the initial report was filed with incomplete information because facts were still developing, a supplemental report can follow when the additional information becomes available. Carriers should also notify their insurance carrier promptly and consider whether the incident belongs on the accident register maintained for FMCSA purposes. An incident that checks multiple reporting boxes still needs to be documented in all applicable places.

Frequently Asked Questions

What if only a small amount of hazmat spilled and no one was injured?

Even a small unintentional release of hazardous material during transport may trigger the 30-day written report requirement under 49 CFR 171.16. The immediate telephone notification requirement has higher thresholds (death, hospitalization, major transportation artery closure, etc.). Review the specific trigger criteria in 49 CFR 171.15 and 171.16 for your situation.

Who files the incident report — the driver, carrier, or shipper?

The carrier (and the shipper, in some cases) is responsible for filing the incident report. The driver is responsible for immediate notification and preserving evidence at the scene. The carrier must file the written 30-day report. Both the carrier and shipper may have reporting obligations depending on the nature of the incident.

Does a minor container leak with no injuries require an NRC call and written report?

Even a small unintentional release may trigger the 30-day written report requirement under §171.16 — the threshold for written reporting is lower than for immediate NRC notification. The NRC call under §171.15 is required for more severe events (fatalities, hospitalizations, major artery closures, evacuations). Review both §171.15 and §171.16 for your specific situation rather than assuming a small spill falls below the threshold.

What happens if the 30-day written report deadline passes without a filed report?

Failure to file the written incident report within 30 days under §171.16 is a federal violation subject to civil penalties from PHMSA. File the report as soon as the lapse is discovered, even if late. A late filing with an explanation is better than no filing. PHMSA's online portal at phmsa.dot.gov accepts the DOT Form F 5800.1 electronically. Retain a copy of the submission confirmation.

Editorial notice: This page is an educational resource. CDL List is not affiliated with FMCSA, any state DMV, or any CDL school. Content is for general informational purposes only and does not constitute legal, tax, or medical advice. Always verify current requirements with the relevant federal or state agency before taking action.