NFPA 704

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Standard System for the Identification of the Hazards of Materials for Emergency Response

This standard presents a simple, readily recognized, and easily understood system of markings (commonly referred to as the "NFPA hazard diamond") that provides an immediate general sense of the hazards of a material and the severity of these hazards as they relate to emergency response.

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NFPA members and public sector officials may submit a question on an NFPA code or standard. Responses are provided by NFPA staff on an informal basis.
Happy Holidays! NFPA will be closed December 25 - January 1. We wish you all a safe & enjoyable holiday week and look forward to serving you in the new year.

NFPA 704: News & Research

News about NFPA codes and standards

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Happy Holidays! NFPA will be closed December 25 - January 1. Place your orders by Wednesday, December 13 to ensure domestic delivery by year end. We wish you all a safe & enjoyable holiday week and look forward to serving you in the new year.

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