Which are the major model building codes in the US?

The correct choice identifies NFPA 5000 and the International Building Code (IBC) as major model building codes in the United States. These codes are crucial in establishing minimum standards for the design, construction, and occupancy of buildings.

The NFPA 5000, developed by the National Fire Protection Association (NFPA), specifically focuses on safeguards against fire and life safety issues. It covers a wide range of topics, including means of egress, fire protection systems, and the overall safety of building occupants.

The IBC, published by the International Code Council (ICC), provides a comprehensive set of regulations that ensure the structural integrity and safety of buildings across multiple aspects, such as occupancy types, fire safety, and structural requirements. The IBC is widely adopted at the state and local levels, providing consistency and uniformity in building construction across jurisdictions.

Together, these codes form the backbone of regulatory frameworks that drive building safety standards in the United States, supporting both life safety and property protection. By referencing both the NFPA 5000 and the IBC, the correct answer highlights the leading authorities in the field of building codes.