The National Fire Protection Association (NFPA) sets safety standards to safeguard occupants of commercial buildings from a range of hazards. NFPA 110 outlines the performance criteria for emergency and standby power systems, which offer an alternative electrical power source for buildings and facilities in the event of a primary electrical power source failure.

These systems encompass power sources, transfer equipment, controls, supervisory equipment, and necessary accessory equipment to deliver electrical power to designated circuits.