"The purpose of the Integrated Planning System (IPS) is to further enhance the preparedness of the United States by formally establishing a standard and comprehensive approach to national planning. It is meant to provide guidance for conducting planning in accordance with the Homeland Security Management System (HSMS), described in the National Strategy for Homeland Security of 2007. [...] To execute the direction set forth in the Strategy, the President issued Annex I (National Planning) to Homeland Security Presidential Directive 8 (HSPD-8) (National Preparedness). Annex I directs the Secretary of Homeland Security to, among other tasks, develop the IPS. By introducing a standardized approach to national homeland security planning, the IPS is an important step in enhancing our national preparedness. As this system is implemented over time, it will align and synchronize our Federal planning efforts and serve as a model for planning at all levels of government-Federal, State, local, and Tribal. IPS incorporates lessons learned from both the development of the National Planning and Execution System and the planning process and doctrine elements of the Interim Comprehensive Preparedness Guide 101 (CPG-101)."
United States Department of Homeland Security: http://www.dhs.gov/