NFPA 101, the Life Safety Code, is a comprehensive standard addressing life safety in buildings and structures of all types. While the IBC addresses construction aspects of life safety, NFPA 101 emphasizes the ongoing operational and maintenance requirements to preserve life safety throughout the building life. The code addresses occupancy chapters for different building types including assembly, business, industrial, institutional, storage, and residential. For each occupancy, the code specifies egress design, fire protection features, interior finish requirements, and special systems. The code recognizes that many buildings change over time, so it establishes requirements for both new construction and existing buildings undergoing alterations. Equivalency and performance alternatives are permitted where the code's prescriptive requirements cannot be met, allowing innovation. For new construction, the code generally aligns with IBC egress requirements including minimum exits, travel distance, and exit capacity. For existing buildings, the code permits some deviations where compliance would require substantial reconstruction. Fire detection and alarms are required in all occupancies, with specific requirements for system type and notification. Automatic sprinklers are required in certain occupancies and building types, consistent with NFPA 13 standards. Safe egress requires that all exits and egress paths be maintained free of obstructions, with emergency lighting and signage functional and maintained. Furnishings and decorations used in buildings must meet fire performance standards.