Which standard is used for the identification of hazard of materials for emergency response?

• A. NFPA 30
• B. NFPA 704
• C. NFPA 70
• D. NFPA 13

Answer: (B)

Hazard identification for emergency response relies on NFPA 704, a standard that communicates hazards at a glance. It uses a diamond placard with four sections: blue for health, red for flammability, yellow for reactivity, and a white area for special hazards. Numbers 0–4 indicate severity, so responders can quickly gauge how dangerous a material is and decide on protective actions, evacuation needs, and response steps. This system is specifically designed for first responders to understand material hazards rapidly, unlike storage codes, electrical codes, or sprinkler standards, which cover other aspects of safety. In practice, you’ll see NFPA 704 markings on containers and in facilities, guiding decisions about PPE and incident handling.