In terms of fire safety, which governing document specifically addresses self-closing fire door requirements?

The governing document that specifically addresses self-closing fire door requirements is NFPA 80. This standard, developed by the National Fire Protection Association, outlines the necessary specifications and performance criteria for fire doors and their assemblies. It includes requirements related to the installation, maintenance, and testing of fire doors, ensuring that self-closing mechanisms function properly to prevent the spread of fire and smoke within a building.

Self-closing fire doors are critical components in fire protection systems as they help to compartmentalize fire, thereby enhancing safety for occupants and limiting property damage. NFPA 80 details various aspects, such as the materials used, design features, and inspection protocols specifically to ensure these doors perform as intended in the event of a fire.

The other documents listed do not specifically focus on fire door requirements. NFPA 70 pertains to electrical safety and wiring, UL 210 relates to safety standards for the construction of various consumer products, and ASTM 123 encompasses tests and specifications for zinc coatings. Therefore, NFPA 80 is the clear choice for governing the requirements of self-closing fire doors.