What is a hazmat hotline?

A hazmat hotline is a 24-hour emergency phone number that provides technical guidance during chemical incidents. There are two types: public agency hotlines (like DOT/PHMSA or the National Response Center) for regulatory reporting and general guidance, and dedicated private hazmat hotlines (like HAZMAT LINE) that shippers are required to list on their Safety Data Sheets (SDS) and shipping papers under DOT and IATA regulations.

What is the hazmat emergency phone number?

For general regulatory information, DOT/PHMSA's Hazardous Materials Information Center is 1-800-467-4922 (Mon–Fri, 9AM–5PM EST). For spill reporting, the National Response Center is 1-800-424-8802 (24/7). For life-threatening emergencies, call 911. If you are a shipper and need a compliant 24-hour emergency number for your SDS and shipping papers, that requires a dedicated private service such as HAZMAT LINE.

What number do you call for a chemical emergency?

Call 911 first for any life-threatening situation. For chemical spill reporting, call the National Response Center at 1-800-424-8802. If you are a shipper, your emergency response provider (the number listed on your SDS) should be called immediately — they provide product-specific guidance to first responders and coordinate the response.

Do I need a dedicated 24-hour hazmat emergency phone number for my SDS?

Yes. Under 49 CFR (DOT), IATA DGR, and OSHA HazCom (29 CFR 1910.1200), Section 1 of every Safety Data Sheet must include a 24-hour emergency telephone number staffed by personnel with knowledge of the product. Additionally, 49 CFR 172.604 requires that a 24-hour emergency response telephone number appear on hazmat shipping papers. Public agency hotlines like DOT/PHMSA do not satisfy either requirement because they do not have access to your specific product data. Shippers must contract a private hazmat emergency response provider.

What is CHEMTREC and is there an alternative?

CHEMTREC is an emergency response telephone service operated by the American Chemistry Council (ACC). It is one of the most widely used providers for hazmat shippers in the US. An annual subscription is required to list their number on your SDS and shipping papers. HAZMAT LINE is an independent alternative — see our full CHEMTREC vs. HAZMAT LINE comparison at hazmatline.com/pages/chemtrec-alternative.

What is the difference between a public hazmat hotline and a private ER provider?

Public hotlines (DOT, NRC, Poison Control) are government services that provide general regulatory guidance, spill reporting, and public safety support. They do not have access to your specific product SDS data and cannot satisfy the regulatory requirement for a dedicated 24-hour emergency number on shipping papers. Private ER providers (like HAZMAT LINE or CHEMTREC) are contracted services that maintain your product data on file and provide product-specific guidance to responders during an incident.

Hazmat emergency phone numbers reference guide

Hazmat Emergency Phone Numbers: Complete Contact Guide (2026)

7 de janeiro de 2026

This guide covers every hazmat emergency phone number you may need — before, during, and after a chemical incident. It is organized in three sections: prevention and compliance (regulatory agencies and planning resources), immediate response (who to call during an active incident, including dedicated 24-hour hazmat hotline providers), and reporting and recovery (post-incident obligations).

Need a dedicated hazmat emergency phone number for your SDS or shipping papers?

The public agency numbers below are for regulatory reporting and general guidance. If you ship hazardous materials, DOT and IATA regulations require a separate 24-hour hazmat emergency phone number listed on your SDS and shipping papers — staffed by experts who know your specific products.

Get a quote from HAZMAT LINE →

Quick Reference: Key Hazmat Emergency Numbers

Purpose	Number	Hours
Life-threatening emergency	911	24/7
Spill reporting (NRC)	1-800-424-8802	24/7
DOT/PHMSA regulatory info	1-800-467-4922	Mon–Fri, 9–5 EST
Poison Control	1-800-222-1222	24/7
CANUTEC (Canada)	1-888-226-8832	24/7
SETIQ (Mexico)	01-800-00-214-00	24/7
OSHA (workplace safety)	1-800-321-6742	24/7
FMCSA (motor carrier safety)	1-800-832-5660	Mon–Fri business hours
Dedicated SDS & shipping papers hotline	HAZMAT LINE →	24/7 · From $599/yr

Before a Hazmat Incident: Prevention & Compliance

Department of Transportation (DOT)

Pipeline and Hazardous Materials Safety Administration (PHMSA) is the DOT agency responsible for regulating and enforcing hazardous materials transportation and pipeline safety in the United States.

PHMSA's Hazmat Information Center provides live, one-on-one assistance pertaining to the federal regulations for the transportation of hazardous materials, 49 CFR.
DOT/PHMSA's Hazardous Materials Information Center: 1-800-467-4922 (Mon–Fri, 9 AM–5 PM EST)

Under 49 CFR 172.604, shippers must include a 24-hour emergency response telephone number on hazmat shipping papers — this must be a number where technically qualified personnel are available at all times during transport.

PHMSA also provides a help desk for companies that must complete the annual Hazardous Materials Registration required under 49 CFR.
HAZMAT Registration Help Desk: 202-366-4109

PHMSA has a direct line to report pipeline safety concerns, unsafe conditions, or regulatory issues involving natural gas or hazardous-liquid pipelines.
Office of Pipeline Safety Hotline: 202-366-4595

Occupational Safety and Health Administration (OSHA)

OSHA provides guidance on workplace safety, employee training, and hazmat compliance programs. Under OSHA HazCom (29 CFR 1910.1200), Section 1 of every SDS must include a 24-hour emergency contact number. Companies can consult an OSHA Area Office for compliance questions, safety program guidance, training requirements, hazard communication (HazCom) rules, and general workplace safety support.
OSHA Area Office contact: check your area office, for example (312) 353-2220 for Chicago Regional Office

Federal Motor Carrier Safety Administration (FMCSA)

Provides assistance with federal motor carrier safety regulations, including DOT registration, operating authority, safety ratings, driver qualification requirements, hours-of-service rules, and hazardous materials transportation compliance.
FMCSA Contact Center: 1-800-832-5660

FMCSA also has a Drug & Alcohol Clearinghouse that supports employers and carriers with compliance under the DOT drug and alcohol testing program for CDL drivers.
FMCSA Drug & Alcohol Clearinghouse: 1-844-955-0207

Environmental Protection Agency (EPA)

The EPA provides guidance on hazardous waste management, extremely hazardous substances, and community right-to-know rules to help companies stay compliant and prevent environmental incidents.
EPA Emergency Management / Superfund Information Line (not an emergency hotline): 1-800-424-9346
EPA Small Business & Asbestos Information Line: 1-800-368-5888

National Fire Protection Association (NFPA)

The NFPA publishes widely used safety standards for hazardous materials, including NFPA 704, the NFPA Hazard Identification Diamond.
NFPA Contact: 1‑800‑344‑3555

The National Pesticide Information Center (NPIC)

Provides objective, science-based information about pesticide-related subjects, including pesticide poisonings, toxicology, and environmental chemistry.
NPIC Hotline: 1-800-858-7378

Planning & Reference Tools — While not hotlines, the following tools are widely used in hazmat preparedness:

DOT Emergency Response Guidebook (ERG): First-responder guidance for initial isolation, evacuation, and protective actions
CAMEO Chemicals (NOAA): Chemical identification and hazard information database
NIOSH Pocket Guide: Occupational exposure and chemical safety reference

During a Hazmat Incident: Immediate Response

911 (Local Emergency Services)

For life-threatening situations such as fires, explosions, serious injuries, or immediate danger from hazardous chemicals.
Emergency hotline: 911

24h Hazmat Hotline Providers (For Your SDS & Shipping Papers)

These services provide real-time, product-specific guidance during chemical incidents. Anyone can call during an emergency — first responders, drivers, and authorities can reach them at any time. However, to display a provider's number on your SDS and shipping papers, your company must register and pay an annual subscription so the provider has your product data on file. Public agency hotlines do not satisfy this requirement.

HAZMAT LINE — 24-hour global hazmat emergency response phone service. Annual subscription required. Register here →
CHEMTREC — American Chemistry Council's emergency response phone service. Annual subscription required. For a feature and pricing comparison, see our CHEMTREC vs. HAZMAT LINE breakdown.

Poison Control Center

Provides medical guidance for chemical ingestion, inhalation, or exposure.
Poison Control Center: 1‑800‑222‑1222

Animal Poison Control Center (ASPCA)

Provides information on exposure to chemicals, poisons or drugs. (Animals only.)
ASPCA Animal Poison Control Center: 1-800-426-4435

National Response Center (NRC)

The federal reporting center for oil, chemical, and hazardous substance spills. Notifications go to EPA, PHMSA, and U.S. Coast Guard. Visit the NRC website →
NRC Emergency Hotline: 1‑800‑424‑8802

State Environmental or Emergency Management Agencies

State-level authorities provide coordination and oversight for chemical releases. Contact your local/state directory.

CDC / ATSDR Emergency Operations Center

For large-scale chemical incidents with public health impact.
CDC EOC: 770-488-7100

FBI (Local Field Office or Headquarters)

For suspected intentional contamination, sabotage, or terrorism involving hazardous materials. Contact your local FBI Field Office.

After a Hazmat Incident: Reporting & Recovery

Hazmat Cleanup Companies

Once a release is contained and the scene is safe, certified cleanup companies handle decontamination, waste removal, and environmental remediation. Emergency response phone service providers such as HAZMAT LINE can assist in identifying and coordinating with qualified cleanup contractors during the event.

OSHA

Contact OSHA to report work-related fatalities (within 8 hrs), severe injuries (within 24 hrs), or imminent danger conditions.
OSHA Incident & Fatality Reporting hotline: 1-800-321-6742

DOT / PHMSA

For incidents involving hazardous material transportation. PHMSA requires DOT Form 5800.1 for certain transportation incidents.
DOT/PHMSA's Hazardous Materials Information Center: 1-800-467-4922

Disaster Distress Helpline

For responders or employees impacted by a significant hazmat incident.
Helpline: 1-800-985-5990

Emergency Response Phone Service Providers (Post-Incident Support)

Some providers, like HAZMAT LINE, provide guidance for documentation, risk analysis, and regulatory compliance after a hazmat incident.
HAZMAT LINE Customer Service: +1 (813) 742-5152
Sign up here

Shipping on Road Outside the US but in North America?

Canada

CANUTEC – Canadian Transport Emergency Centre

Provides 24/7 emergency advisory services for transportation incidents involving dangerous goods.
Emergency Hotline: 1-888-226-8832 (North America) or +1-613-996-6666 (collect calls accepted)
Information Line: +1-613-992-4624

Environment and Climate Change Canada (ECCC) – National Environmental Emergencies Centre

For environmental emergencies or pollution incidents across provinces/territories.
ECC Environmental Emergencies Hotline: 1-866-283-2333 (Canada)

Canadian Nuclear Safety Commission (CNSC)

For incidents involving nuclear facilities or radioactive materials.
Emergency Duty Officer (24/7): +1-613-995-0479 (or toll-free +1-844-879-0805)

Emergency Response Assistance Canada (ERAC)

Private emergency response organization providing on-site response and clean-up for dangerous goods incidents.
ERAC Emergency Hotline (24/7): 1-800-265-0212

Mexico

CENACOM – Centro Nacional de Comunicaciones

Emergency notification and coordination for hazardous material incidents throughout Mexico.
CENACOM Emergency hotline: 01-800-00-41-300
Mexico City: (55) 55-50-15-52, (55) 55-50-14-96

SETIQ – Sistema de Emergencia para la Atención de Incidentes con Materiales Químicos

National emergency response service for chemical and hazardous materials incidents. Only Mexican companies can be SETIQ members. SETIQ works in coordination with CENACOM, COATEA, and CONASENUSA.
SETIQ Emergency hotline: 01-800-00-214-00 (in Mexico)
Mexico City: (55) 55-59-15-88

COATEA – Centro de Operaciones de Atención de Emergencias Ambientales

Support and coordination for environmental emergencies, including hazardous materials releases.
COATEA Emergency hotline: 01-800-710-49-43 (in Mexico)
Mexico City: (55) 26-15-20-45, (55) 54-49-63-91

CONASENUSA – Comité Nacional de Seguridad Nuclear y Salvaguardias

Emergency contact for incidents involving radioactive materials.
CONASENUSA Emergency hotline: 01-800-11-131-68 (in Mexico)
Mexico City: (55) 50-95-32-00 ext. 210

Shipping Internationally by Sea or Air?

International Maritime Dangerous Goods (IMDG) Code – Maritime Shipments

The IMDG Code establishes the international standard for dangerous goods transported by sea. Compliance is mandatory for all international maritime shipments under the SOLAS Convention (IMO).
IMDG – no public hotline or information number

International Air Transport Association (IATA) – Dangerous Goods Regulations (DGR)

The IATA DGR provides classification criteria, packaging instructions, and acceptance procedures used by airlines and air cargo handlers worldwide.
IATA – no public hotline or information number

Labelmaster

Provides products, software, training, and consulting for hazmat compliance. Labelmaster's free Regulatory Hotline connects you with experts for IATA and IMDG compliance questions.
Labelmaster Regulatory Hotline (Free): 1-800-621-5808 (Mon–Fri 8–5PM CT)

Need a compliant 24h hazmat emergency number for your SDS?

HAZMAT LINE provides a dedicated hazmat emergency phone number for shippers — compliant with DOT (49 CFR 172.604), IATA DGR, and IMDG. Lists on your SDS and shipping papers. Flat rate from $599/yr. Active in 48 hours.

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