What is an important feature of the NFPA labeling system?

An important feature of the NFPA labeling system is that the labels are mostly color-coded. This color-coding is designed to provide a quick visual reference that allows emergency responders to assess the hazards of a material rapidly. The NFPA label consists of a diamond with four quadrants, where the color coding indicates specific types of hazards, such as health, flammability, reactivity, and specific hazards. Each quadrant is assigned a number from 0 to 4, with 0 indicating minimal hazard and 4 indicating severe hazard.

The use of color-coding makes it easier for responders to take appropriate action when encountering hazardous materials, as they can immediately identify the nature and level of risk posed by the substances involved. This system enhances safety during emergency response by allowing for quick decision-making based on easily interpreted visual information.