The Infrastructure Security Partnership (TISP) was established following the tragic events of September 11, 2001, as a national forum for public and private-sector organizations to collaborate on issues regarding the resilience of the nation's critical infrastructure against the adverse impacts of natural and man-made disasters. TISP members-who represent the design, construction, operation, and maintenance communities; local, state, and federal agencies; academe; and other organizations concerned about disaster preparedness, response, and recovery-work together to identify and develop costeffective solutions by leveraging their collective resources, experience, technical expertise, research and development capabilities, and knowledge of public policy regarding natural and man-made disasters. Since its establishment, membership has grown to more than 100 organizations representing more than 1.5 million individuals and firms. (TISP, Regional Disaster Resilience: A Guide for Developing an Action Plan, June 2006, p. 1)