According to NFPA standards, what provides markers on buildings or structures?

The correct answer is indeed NFPA 704. This standard specifically addresses the identification of hazards associated with materials found in buildings or structures by using a color-coded system. NFPA 704 creates a diamond-shaped label that is displayed on the exterior of a building, which provides information about the specific hazards present inside, including health risks, flammability, and reactivity. This quick visual reference helps emergency responders assess potential dangers efficiently and safely when approaching a site.

Other NFPA standards, while important in their respective areas, do not specifically relate to the marking of buildings for hazard identification in the same way NFPA 704 does. For instance, NFPA 701 deals with the use of fabric and textiles for fire retardance, NFPA 702 concerns the use of fire control in fabrics, and NFPA 703 outlines standards for providing fire protection in various structures but does not focus on hazard markers. This distinction emphasizes why NFPA 704 is the appropriate choice for the question regarding markers on buildings or structures.