Chemical and Biological Warfare: Use of Collective Protection on Vehicles, Aircraft, and Ships

Pursuant to a congressional request, GAO provided information on the military's efforts to protect personnel in combat vehicles, aircraft, and ships against chemical and biological warfare contamination, focusing on: (1) congressional legislation and the Department of Defense (DOD) and service regulations that address collective protection devices that limit contamination; (2) weapons systems within each service that were equipped with collective protection devices; and (3) costs to equip weapons systems with such devices.