The list of organizations is arranged alphabetically by State and by airports within each State. The addresses and telephone numbers of organizations in each State are provided, and the chief of airport security at each organization is identified. Information is given for each State, the District of Columbia, Guam, Puerto Rico, Samoa, and the Virgin Islands. Also listed are FBI airport resident agents, US. Customs Air Support Units, postal inspectors servicing major airport mail facilities, Federal Aviation Administration explosives specialists and aviation security field offices/agents, and temporary detention facilities. The Royal Canadian Mounted Police Airport Detachments are also identified.