Department of Defense Directive 5105.80: Defense Business Transformation Agency (BTA) [open pdf - 117KB]
"Under the authority vested in the Secretary of Defense by sections 113, 191, and 192 of title 10, United States Code (Reference (a)), this Directive: a. Establishes the BTA with the mission, organization and management, responsibilities and functions, relationships, and authorities as prescribed herein. b. Supersedes and cancels Deputy Secretary of Defense Memorandum (Reference (b)). This Directive applies to OSD, the Military Departments, the Office of the Chairman of the Joint Chiefs of Staff and the Joint Staff, the Combatant Commands, the Office of the Inspector General of the Department of Defense, the Defense Agencies, the DoD Field Activities, and all other organizational entities within the Department of Defense (hereafter referred to collectively as the 'DoD Components')."
DoD Directive 5105.80; DoDD 5105.80