The Energy Policy Act of 2005 (E-Pact) established new statutory requirements specifically designed to improve the environmental management of federal facility underground storage tanks (USTs). Executive Order 13423 Strengthening Federal Environmental, Energy, and Transportation Management, requires that federal agencies implement environmental management systems (EMS) at all appropriate organizational levels. This EPA document provides guidance and examples of how efforts to address Underground Storage Tank regulatory requirements and implement best management practices for UST operations can work in concert with Environmental Management System implementation.