Which NFPA handbook focuses on life safety regulations?

The National Fire Protection Association (NFPA) 101, also known as the Life Safety Code, specifically addresses regulations related to life safety in both new and existing buildings. It provides guidelines for the design, construction, and occupancy of buildings to ensure the safety of occupants in the event of a fire or emergency situation. This code focuses on aspects such as means of egress, emergency lighting, and fire protection features that are essential for protecting human life.

The other options, while important in their respective areas, do not focus primarily on life safety regulations. NFPA 72 deals with the installation and maintenance of fire alarm systems, NFPA 13 covers the standards for sprinkler systems, and NFPA 70 outlines the National Electrical Code. Each of these handbooks plays a critical role in fire safety and prevention, but NFPA 101 is the one that explicitly emphasizes safeguarding lives through comprehensive life safety measures.