Directs the Secretary of Homeland Security to develop and submit to Congress a plan for establishing consolidated and co-located regional offices for the Department of Homeland Security (DHS) that will: (1) enable a rapid, robust, and coordinated federal response to threats and incidents; (2) enhance all-hazards preparedness across the United States with respect to terrorism, natural disasters, other emergencies; (3) provide integrated capabilities among DHS, other federal agencies, and state and local governments; and (4) maximize cost savings and efficiencies through establishment of regional offices at current DHS agency regional structures with contiguous multi-state operations.