Under Secretary of Defense for Acquisition and Sustainment


The Under Secretary of Defense for Acquisition and Sustainment, or USD, is a senior civilian official in the Office of the Secretary of Defense within the Department of Defense. USD is the principal staff assistant and advisor to the Secretary of Defense and the Deputy Secretary of Defense for all matters concerning Departmental acquisition and sustainment.
The Under Secretary is appointed from civilian life by the President with the consent of the Senate to serve at the pleasure of the President.
Ellen Lord became the first Under Secretary of Defense for Acquisition and Sustainment on 1 February 2018, after serving as the final Under Secretary of Defense for Acquisition, Technology and Logistics.

Overview

The Office is the principal staff element for the Department of Defense for acquisitions, advanced technology, and logistics. As the Department's chief administrative officer, the Under Secretary oversees installation management, military construction, occupational health management, utilities and energy management; business management modernization, document services, and nuclear, chemical, and biological defense programs.

History

The Military Retirement Reform Act of 1986 created the position of Under Secretary of Defense for Acquisition, which was implemented with the issuance of Department of Defense Directive 5134.1 in February 1987. As part of this act, the position of Under Secretary of Defense for Research and Engineering was redesignated as the Director of Defense Research and Engineering, a lower-ranking position which reported to the new USD.
The title of USD was changed to Under Secretary of Defense for Acquisition and Technology by the National Defense Authorization Act for Fiscal Year 1994, and the position was later redesignated as the Under Secretary of Defense for Acquisition, Technology, and Logistics by the National Defense Authorization Act for Fiscal Year 2000. The USD served as the principal assistant to the Secretary of Defense for research and development, production, procurement, logistics, and military construction.
The National Defense Authorization Act for Fiscal Year 2017 removed the position of USD, and in its place it created the position of USD once again, as well as the new position of USD. These changes took effect on 1 February 2018. As part of the reorganization, the Assistant Secretary of Defense for Logistics and Materiel Readiness and Assistant Secretary of Defense for Energy, Installations, and Environment positions were combined into a new Assistant Secretary of Defense for Sustainment.

Organization

As of the July 2018 reorganization, officials reporting to the USD include:
The Office of the Under Secretary of Defense for Acquisition and Sustainment, a unit of the Office of the Secretary of Defense, supervises all Department of Defense acquisitions, including procurement of goods and services, research and development, developmental testing, and contract administration, for all elements of the Department. Led by the Under Secretary, OUSD oversees logistics, maintenance, and sustainment support for all elements of the Department and establishes policies for the maintenance of the defense industrial base of the United States.
The work of OUSD is conducted through its several staff directorates, including:
NameTenureUSD Served UnderSecDef Served UnderPresident Served Under
Milton Lohr3 October 1988 – 12 May 1989Robert B. CostelloRichard B. CheneyGeorge H.W. Bush
Donald J. Yockey12 March 1990 – 20 January 1991John A. BettiRichard B. CheneyGeorge H.W. Bush
Donald C. Fraser4 December 1991 – 13 January 1993Donald J. YockeyRichard B. CheneyGeorge H.W. Bush
Noel Longuemare, Jr.18 November 1993 – 21 November 1997John M. Deutch
Paul G. Kaminski
Jacques S. Gansler
Leslie Aspin, Jr.
William J. Perry
William S. Cohen
Bill Clinton
David Oliver1 June 1998 – 14 July 2001Jacques S. Gansler
Edward C. Aldridge, Jr.
William S. Cohen
Donald H. Rumsfeld
Bill Clinton
George W. Bush
Michael W. Wynne17 July 2001 - 2005Edward C. Aldridge, Jr.Donald H. RumsfeldGeorge W. Bush
Frank Kendall III8 March 2010 – 5 October 2011Ashton CarterRobert M. Gates
Leon Panetta
Barack Obama
Alan Estevez6 October 2011 – 20 January 2017Frank Kendall IIILeon Panetta
Chuck Hagel
Ash Carter
Barack Obama
Vacant20 January 2017 – 1 February 2018Ellen LordJames MattisDonald Trump