Assistant Secretary of the Army for Installations, Energy and Environment (abbreviated ASA (IE&E)) is a civilian office within the United States Department of the Army.
Roles and responsibilities The assistant secretary of the Army (installations, energy and environment) is the primary advisor to the secretary and chief of staff of the Army on all United States Army matters related to infrastructure, installation policy, oversight and coordination of energy security, environmental management, safety and occupational health. The ASA (IE&E) is also responsible for policy and oversight of sustainability, safety, occupational health, and environmental initiatives; resource management including design, military construction, operations and maintenance; Base Realignment and Closure; privatization of Army family housing, lodging, real estate, and utilities; and the Army's installations safety and occupational health programs.
Organization The Office of the Assistant Secretary of the Army for Installations, Energy and Environment oversees the following positions: Deputy Assistant Secretary of the Army for Environment, Safety and Occupational Health Deputy Assistant Secretary of the Army for Installations, Housing & Partnerships Deputy Assistant Secretary of the Army for Energy and Sustainability
Officeholders
+ Portrait Name Tenure SecArmy(s) served under President(s) served under Assistant Secretary of the Army for Installations, Logistics and Environment John W. Shannon December 7, 1984 – August 13, 1989 John O. Marsh, Jr. Ronald ReaganGeorge H. W. Bush Susan M. Livingstone 1989 – January 20, 1993 Michael P. W. Stone George H. W. Bush Robert M. Walker March 17, 1994 – June 9, 1998 Togo D. West Jr. Bill Clinton Assistant Secretary of the Army for Installations and Environment Mahlon Apgar, IV June 9, 1998 – January 20, 2001 Louis Caldera Bill Clinton Mario P. Fiori August 13, 2001 – December 15, 2003 Thomas E. White George W. Bush Keith E. Eastin July 29, 2005 – January 20, 2007 Francis J. Harvey George W. Bush Katherine G. Hammack June 28, 2010 – September 30, 2010 John M. McHugh Barack Obama Assistant Secretary of the Army for Installations, Energy and Environment Katherine G. Hammack October 1, 2010 – January 20, 2017 John M. McHughEric Fanning Barack Obama J. Randall Robinson January 20, 2017 – October 16, 2017 Donald Trump Jordan Gillis October 16, 2017 – January 10, 2019 Mark Esper Donald Trump Alex A. Beehler January 10, 2019 – January 20, 2021 Mark EsperRyan D. McCarthy Donald Trump Jack Surash January 20, 2021 – October 3, 2021 Christine Wormuth Joe Biden Paul Farnan October 4, 2021 – April 4, 2022 Christine Wormuth Joe Biden Rachel Jacobson April 4, 2022 – January 20, 2025 Christine Wormuth Joe Biden Daniel Klippstein January 20, 2025 – April 20, 2025 Daniel P. Driscoll Donald Trump Jeff Waksman April 20, 2025 – October 6, 2025 Daniel P. Driscoll Donald Trump Jordan Gillis October 6, 2025 – Present Daniel P. Driscoll Donald Trump
Principal Deputy Assistant Secretary + Portrait Name Tenure ASA (IE&E)(s) served under SecArmy(s) served under President(s) served under Principal Deputy Assistant Secretary of the Army for Installations, Energy and Environment L. Jerry Hansen June 2010 – 2012 Katherine G. Hammack John M. McHugh Barack Obama J. Randall Robinson June 1, 2012–July 2018 Katherine G. Hammack John M. McHughMark Esper Barack ObamaDonald Trump Jordan Gillis January 10, 2019 – March 30, 2020 Alex A. Beehler Mark EsperRyan D. McCarthy Donald Trump Bryan M. Gossage May 18, 2020 – January 20, 2021 Alex A. Beehler Ryan D. McCarthy Donald Trump Carla K. Coulson January 20, 2021 – October 3, 2021 Jack Surash Christine Wormuth Joe Biden Jack Surash October 4, 2021 – April 4, 2022 Paul Farnan Christine Wormuth Joe Biden Paul Farnan April 4, 2022 – January 20, 2025 Rachel Jacobson Christine Wormuth Joe Biden David Dentino January 20, 2025 – April 20, 2025 Daniel Klippstein Daniel P. Driscoll Donald Trump Daniel Klippstein April 20, 2025 – October 6, 2025 Jeff Waksman Daniel P. Driscoll Donald Trump Jeff Waksman October 6, 2025 – Present Jordan Gillis Daniel P. Driscoll Donald Trump
Deputy assistant secretaries Environment, safety and occupational health
The deputy assistant secretary of the Army for environment, safety and occupational health (abbreviated DASA-ESOH) is one of the four deputy assistant secretaries that report to the ASA (IE&E).
Roles and responsibilities The deputy assistant secretary of the Army for environment, safety and occupational health serves to coordinate the army's environmental programs, through providing policy, programming, and oversight. The DASA also serves as the primary advisor to army commanders on environment, safety and occupational health matters, along with executing the Army's arms control program.
Organization In order to achieve its goals, the ASDA oversees a number of specialist directorates and organizations; these are: Munitions & Chemical Matters Directorate – is the primary advisor on the environmental, safety and occupational health aspects of explosive and toxic military chemicals. The directorate's scope includes: operational ranges, historic sea disposal of munitions, and life-cycle munitions management. The directorate exercises control over a number of, both cross-service DoD and US Army, programs; these being: Department of Defense Explosives Safety Management Program Department of Defense Recovered Chemical Warfare Materiel Program Department of Defense Chemical Demilitarization Program Army 3Rs (Recognize, Retreat, Report) Explosives Safety Education Program Non-Stockpile Chemical Materiel Project (controlled by CMA) Sea-Disposed Chemical Warfare Material Program Low-Level Radioactive Waste Program Environmental Quality Directorate – controls army programs relating to natural resource and cultural resource legal requirements, as well as Native American affairs, including legal, treaty, and trust responsibilities. Furthermore, the directorate undertakes work in the fields of air, water, and waste legal requirements, environmental impact analysis, and environmental program performance auditing. The directorate's programs include: Army Conservation Program Army Environmental Compliance Program Restoration Directorate – is responsible for overseeing and controlling the cleanup of past contamination for which the Army is deemed responsible, 'at a facility or site owned, leased, or possessed by the Army within the United States at the time of actions leading to contamination'. The directorate overseas the following programs: Base Realignment and Closure Restoration Program Installation Restoration Program Military Munitions Response Program Building Demolition/Debris Removal Program Formerly Used Defense Sites Program Army Compliance Cleanup Program Defense and State Memorandum of Agreement Program Agency for Toxic Substances and Disease Registry Safety Directorate – sets policy and standards relating to Department of the Army safety matters and the Army Safety Program; proposes safety programming and funding; and provides safety program management and oversight. Occupational & Environmental Health Directorate – provides oversight, management, and coordination of OEH programs and services. Technology Directorate – advises on policy in relation to environmental technology needs and requirements. Environmental Information Technology Management Program National Defense Center for Energy and Environment Army Environmental Quality Technology Program US/German Data Exchange Agreement for Environmental Technology Western Hemisphere Information Exchange Program Department of Defense Unexploded Ordnance Center of Excellence
Officeholders + Portrait Name Tenure ASA (IE&E)(s) served under SecArmy(s) served under President(s) served under Deputy Assistant Secretary of the Army for Environment, Safety and Occupational Health Hershell E. Wolfe April 10, 2011–May 2015 Katherine G. Hammack John M. McHugh Barack Obama Eugene Collins June 15, 2015–November 2019 Eric Fanning John McHughMark Esper Donald Trump Amy L. Borman March 2020–present Alex A. Beehler Ryan D. McCarthyChristine Wormuth Donald TrumpJoe Biden
Installations, housing and partnerships
The deputy assistant secretary of the Army for installations, housing and partnerships (abbreviated DASA-IH&P) is one of the four deputy assistant secretaries that report to the ASA (IE&E).
Roles and responsibilities The deputy assistant secretary of the Army for installations, housing and partnerships serves to provide assistance, advice, policy, programming, and oversight, of all matters relating to army installations, including: real estate, military construction, engineering, housing, and base realignments and closures. All of this seeks to create sustainable installations to support the Army's mission, along with provide an excellent quality of life for serving personnel and their families.
Organization Residential Communities Initiative Privatization of Army Lodging Program Office of Historic Properties & Partnerships – raises awareness, renovates, restores, and preserves the Army's inventory of historic buildings.
Officeholders + Portrait Name Tenure ASA (IE&E)(s) served under SecArmy(s) served under President(s) served under Deputy Assistant Secretary of the Army for Installations, Housing and Partnerships Joseph F. Calcara March 2008–March 2012 Katherine G. Hammack Pete GerenJohn M. McHugh Barack Obama Position vacant Paul D. Cramer June 30, 2013–September 2020 Katherine G. HammackAlex A. Beehler John M. McHughEric FanningMark EsperRyan D. McCarthy Barack ObamaDonald Trump Scott Chamberlain September 2020–October 2020 Alex A. Beehler Ryan D. McCarthy Donald Trump Carla K. Coulson October 2020–present Alex A. Beehler Ryan D. McCarthyChristine Wormuth Donald TrumpJoe Biden
Energy and sustainability
The deputy assistant secretary of the Army for energy and sustainability (abbreviated DASA-E&S) is one of the four deputy assistant secretaries that report to the ASA (IE&E).
Roles and responsibilities The deputy assistant secretary of the Army for energy and sustainability serves to provide assistance, advice, policy, programming, and oversight, of all matters relating to the Army's ability to access energy and water, in order to enhance the Army's operational capabilities, enhance the current facilities, and support the state of readiness.
Organization Office of Energy Initiatives – serves to oversee, develop, implement large-scale energy projects related to army installations.
Officeholders + Portrait Name Tenure ASA (IE&E)(s) served under SecArmy(s) served under President(s) served under Deputy Assistant Secretary of the Army for Energy and Sustainability Richard G. Kidd IV October 25, 2010–July 2016 Katherine G. Hammack John M. McHughEric Fanning Barack Obama Jack Surash September 2016–January 20, 2021 Katherine G. HammackAlex A. Beehler Eric FanningMark EsperRyan D. McCarthy Barack ObamaDonald Trump Michael F. McGhee January 20, 2021 – March 24, 2021 Jack Surash John E. Whitley Joe Biden Christine Ploschke March 24, 2021 – April 2, 2022 Jack SurashPaul Farnan John E. WhitleyChristine Wormuth Joe Biden Jack Surash April 4, 2022-July 2022 Rachel Jacobson Christine Wormuth Joe Biden Christine Ploschke August 2022–August 2024 Rachel Jacobson Christine Wormuth Joe Biden
Strategic integration
The deputy assistant secretary of the Army for strategic integration (abbreviated DASA-SI) was one of the four deputy assistant secretaries that reported to the ASA (IE&E). On June 30, 2021, the office was downgraded to a directorate reporting to the PDASA (IE&E).
Roles and responsibilities