National Fire Protection Association (NFPA) 704 (Standard System for the Identification of the Hazards of Materials for Emergency Response) is a simple, readily recognized system used for identifying the hazards of materials and the severity of those hazards. A four section multicolor “square-on-point” (diamond/placard) is used to address the health, flammability, instability and special hazards presented by short-term, acute exposures that could occur during fires, spills or other similar emergencies. Hazard Ratings The severity of a hazard is indicated by a numerical rating that ranges from zero (minimal hazard) to four (severe hazard). The hazards are arranged and color-coded as follows:

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