Guantanamo Bay Detention Facility Safe Closure Act of 2009 - Prohibits federal funds from being used to: (1) transfer any enemy combatant detained at the Naval Station Guantanamo Bay, Cuba, to the United States; or (2) coordinate with any other department or agency to transfer any such individual to the United States.
Prohibits the Secretary of Defense from: (1) using any facility closed through a base closure process for housing any such individual; or (2) constructing, modifying, or improving any facility in the United States or its territories for housing any such individual.