Homeland Security Presidential Directive 19: Combating Terrorist Use of Explosives in the United States [open pdf - 48KB]
Alternate Title: HSPD 19: Combating Terrorist Use of Explosives in the United States
"This directive establishes a national policy, and calls for the development of a national strategy and implementation plan, on the prevention and detection of, protection against, and response to terrorist use of explosives in the United States."
HSPD 19; Homeland Security Presidential Directive 19
White House: http://www.whitehouse.gov