NFPA 110, Standard for Emergency and Standby Power Systems (2025)

NFPA 110: Standard for Emergency and Standby Power Systems is the trusted industry standard for the design, installation, operation, testing, and maintenance of emergency and standby power systems. It establishes the latest requirements to help ensure that essential electrical systems remain operational during utility power outages, supporting life safety, business continuity, and critical facility operations.

This comprehensive edition provides detailed guidance on every aspect of emergency power system performance, including emergency power sources, transfer equipment, control and supervisory systems, electrical distribution components, and related mechanical and auxiliary equipment. Its practical requirements help professionals design dependable systems, maintain regulatory compliance, and improve overall system reliability.

Ideal for electrical engineers, contractors, inspectors, facility managers, maintenance personnel, designers, and code enforcement officials, NFPA 110 serves as an indispensable reference for ensuring emergency power readiness and protecting occupants, equipment, and property during unexpected power interruptions. Whether used for new installations, system upgrades, or ongoing maintenance, this standard remains an essential resource for achieving safe and reliable emergency power system performance.