"Extraordinary incidents, whether caused by war, terrorism, accident or natural disaster, can impact human needs including survival and safety, and also long-term needs such as air, water, food and shelter. ASHRAE’s expertise in HVAC&R, and its knowledge of building envelope performance, intake and exhaust air control, air and water treatment, and food preservation, is critical in addressing life-safety and environmental security.

ASHRAE has developed this 75-page report to provide guidance for new and existing buildings regarding the protection of air, water and food systems. The scope of this report pertains to public use and assembly buildings; commercial, institutional and educational facilities; and other areas of public assembly such as stadiums, coliseums, and vehicle tunnels and subways." -ASHRAE Website