Section I. Basic Threatcon Procedures

1. General. The threat conditions (THREATCONs) outlined below describe the progressive level of a terrorist threat to all US military facilities and personnel under DOD Directive O-2000. 12. As approved by the Chairman of the Joint Chiefs of Staff, the terminology and definitions are recommended security measures designed to ease inter-Service coordination and support of US military antiterrorism activities. The purpose of the THREATCON system is accessibility to, and easy dissemination of, appropriate information. The declaration, reduction, and cancellation of THREATCONs remain the exclusive responsibility of the commanders specified in the order. Although there is no direct correlation between threat information (e.g., Intelligence Summaries, Warning Reports, and Spot Reports) and THREATCONs, such information, coupled with the guidance provided below, assists commanders in making prudent THREATCON declarations. THREATCONs may also be suffixed with the geographic area deemed at risk. Once a THREATCON is declared, the selected security measures are implemented immediately. NOTE: When used in antiterrorism plans, recommend that the information contained in this appendix be marked "For Official Use Only" (FOUO) in accordance with DOD Regulation 5400. 7-R, October 1990. The DOD Directive O-2000. 12 recommended measures are:

THREATCON NORMAL exists when a general threat of possible terrorist activity exists but warrants only a routine security posture.

THREATCON ALPHA...