Final answer:
Emergency generators must be installed in compliance with NFPA 110, for emergency and standby power systems, and NFPA 99, specifically for healthcare facilities.
Step-by-step explanation:
Emergency generators must be installed in accordance with two specific National Fire Protection Association (NFPA) standards: NFPA 110 and NFPA 99. NFPA 110, 'Standard for Emergency and Standby Power Systems,' outlines the performance requirements for emergency and standby power systems that provide an alternative source of electrical power in buildings during a power outage. NFPA 99, 'Health Care Facilities Code,' provides additional criteria for emergency power in healthcare facilities to ensure patient safety and continuation of critical care operations. Therefore, the correct answer is b) NFPA 110 and NFPA 99.