The Deputy Under Secretary of Defense for Installations and Environment, or DUSD (I&E), provides management and oversight of military installations worldwide and manages environmental, safety, and occupational health programs for the Department of Defense (DoD). DoD's installations cover some , with 539,000 buildings and structures valued at more than $700 billion. The responsibilities of the DUSD (I&E) include the development of installation capabilities, programs, and budgets; installation-energy programs and policy; base realignment and closure; privatization of military housing and utilities; and integration of environmental needs into the weapons acquisition process. The DUSD (I&E) is also responsible for environmental management, safety and occupational health; environmental restorat