A capabilities-based and performance-based program that furnishes standardized policies, doctrines, and terminologies for the design, development, performance, and evaluation of homeland security exercises. The National Exercise Program (NEP) uses the HSEEP as a common methodology for exercises. The HSEEP also provides tools and resources to facilitate the management of self-sustaining homeland security exercise programs. (DHS, FCD 1, Nov 2007, P-6)