No text of NSPD-48 / HSPD-17 has been released. But the classified directive was briefly characterized in April 2, 2008 testimony before the Senate Homeland Security and Governmental Affairs Committee by Rolf Mowatt-Larssen of the Department of Energy:
NSPD-48 / HSPD-17
On August 28, 2006, the national-level Nuclear Materials Information Program (NMIP) was established via National and Homeland Security Presidential Directive (NSPD-48/HSPD-17). NMIP is an interagency effort managed by the Department of Energy's Office of Intelligence and Counterintelligence, in close coordination with the Departments of State, Defense, Homeland Security, Justice, the Nuclear Regulatory Commission, and agencies under the Director of National Intelligence.
While the specifics of NMIP are classified, the goal of NMIP is to consolidate information from all sources pertaining to worldwide nuclear materials holdings and their security status into an integrated and continuously updated information management system. This will help us understand the gaps in our current knowledge and ensure that such information is available to support all appropriate Federal departmentsí and agencies' nonproliferation, counterproliferation and counterterrorism efforts. NMIP also is developing a national registry for identifying and tracking nuclear material samples that are held throughout the U.S. to support the information needs of the United Stated Government.