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Part III covers general building requirements, how buildings are classified by occupancy and by fire-resistance of construction type, and energy efficiency and sustainability requirements.

Chapter 1: General Building Requirements

General requirements that apply across occupancy types.

Chapter 2: Classification of Buildings Based on Occupancy

Occupancy groups and how a building’s occupancy classification is determined.

Chapter 3: Classification of Building Construction Types Based on Fire Resistance

Construction types and their required fire-resistance ratings.

Chapter 4: Energy Efficiency and Sustainability

Energy efficiency and sustainability requirements for buildings.
Last modified on September 3, 2026