2024 NFPA 90A Standard for the Installation of Air-Conditioning and Ventilating Systems

NFPA 90A, Standard for the Installation of Air-Conditioning and Ventilating Systems 2024 edition establishes mandatory requirements for fire protection in heating, ventilation, and air conditioning (HVAC) systems — addressing smoke migration control, fire hazard reduction, and the safe installation of forced air systems across all building types. This ANSI-approved standard covers building construction requirements, filters, ducts, dampers, controls, acceptance testing, operation, and maintenance of HVAC systems. The 2024 edition underwent significant reorganization and adds new technical provisions for combination fire-smoke dampers, corridor dampers, UV-C germicidal lamp systems, and MEP control locations.

Who Uses NFPA 90A

Required by mechanical engineers, HVAC system designers and contractors, fire protection engineers, AHJ officials, building inspectors, and facility managers responsible for the design, installation, and maintenance of HVAC systems in commercial, institutional, industrial, and residential occupancies.

What's New in the 2024 Edition

The 2024 edition delivers broad reorganization and new technical provisions across damper types, germicidal systems, and control locations, including:

• Document reorganization for improved usability throughout.
• Updated terminology and definitions for different damper types to better align with current industry standards.
• New sections covering requirements for combination fire-smoke dampers and corridor dampers.
• New technical requirements for the use of ultraviolet (UV-C) germicidal lamp systems in HVAC applications.
• New technical requirements for the location of mechanical, electrical, and plumbing controls.

Stay compliant with the HVAC fire protection and installation requirements in effect for your building type and jurisdiction.

Free standard shipping on all orders. Need multiple copies? Contact us for bulk pricing.