US Policy on Counter-Terrorism - PDD 39
PDD 39, which was signed by President Clinton on June 21, 1995, directs all federal agencies to plan for and deter terrorist activities. It assigns a limited number of federal agencies specific duties based on existing statutory authorities and response capabilities. The FBI and FEMA have the most significant assignments, as the Lead Federal Agencies for crisis management and consequence activities.
Protection Against Unconventional Threats to the Homeland and Americans Overseas - PDD 62
In May of 1998, President Clinton signed PDD 62 to establish an integrated US counter-terrorism program. The program enables the US to counter terrorist threats more effectively and prepare to manage the consequences of attacks against US citizens or infrastructure.
Under the Directive, all agencies must maintain a Continuity of Operations Plan (outlined in Executive Order 12656). These plans ensure the continued operation of essential agency functions following an attack that incapacitates headquarters facilities and key leadership. (See also PDD 67 and HSPD-7)
EPA's role during a response is to provide chemical and radiation protection support and training and to supply protective, detection, and diagnostic equipment.
Critical Infrastructure Protection - PDD 63
In May of 1998, President Clinton also issued PDD 63, which requires federal agencies to ensure the continuity and viability of the US critical infrastructure. Critical infrastructures are physical and cyber-based systems that are essential for minimum operations of the economy and government. (See also PDD 39 and PDD 67) This PDD was superceded by HSPD-7.