Which system identifies hazards of materials using a color-coded diamond?

The system that identifies hazards of materials using a color-coded diamond is the NFPA 704 labeling system. This system is specifically designed for the identification of the hazards associated with materials, particularly hazardous substances. The diamond consists of four quadrants, each representing a different type of hazard: health risks, flammability, reactivity, and specific hazards. Each quadrant is color-coded, with blue indicating health hazards, red indicating flammability, yellow representing reactivity, and white used for specific hazards.

This visual representation facilitates quick recognition and understanding of the potential dangers posed by specific materials, which is crucial in emergency response situations. Responders can rapidly assess risks and make informed decisions on necessary precautions and actions.

Other systems mentioned may involve hazard identification as well but do not utilize the distinctive color-coded diamond format. The DOT (Department of Transportation) labeling system, for instance, employs different labels and markings tailored to transport safety rather than the diamond shape and color scheme of the NFPA 704 system. The HazMat Identification System, though related to hazardous materials, lacks the established design of the NFPA diamond. The Labeling Requirements Regulation focuses on general requirements for labeling rather than a specific graphical hazard identification system such as the NFPA's.