# Assistant Secretary of the Navy (Energy, Installations and Environment)

The Assistant Secretary of the Navy (Energy, Installations and Environment) (abbreviated ASN(EI&E)) is a civilian office in the United States Navy established in 1990. The Assistant Secretary of the Navy (Energy, Installations and Environment) reports to the Under Secretary of the Navy, who in turn reports to the United States Secretary of the Navy.
The Assistant Secretary of the Navy (Energy, Installations and Environment) is responsible for greater energy security, acquiring and disposing of the Navy's real property; constructing and maintaining all US naval installations; overseeing occupational health and safety issues for all Navy personnel (military and civilian); overseeing the Navy's environmental protection, planning, and restoration efforts; and overseeing the Navy's efforts to conserve cultural and natural resources.

## List of Deputy Assistant Secretaries Reporting to the Assistant Secretary of the Navy (Energy, Installations and Environment)

* Principal Deputy Assistant Secretary of the Navy (Energy, Installations and Environment) – PDASN (EI&E)
* Deputy Assistant Secretary of the Navy (Installations, Energy & Facilities) – DASN (IE&F)
* Deputy Assistant Secretary of the Navy (Environment) – DASN (E)
* Deputy Assistant Secretary of the Navy (Safety) – DASN (Safety)
* Assistant General Counsel of the Navy (Energy, Installations and Environment) – AGC (EI&E)
* Executive Director, Public Private Partnership Reviews

## Assistant Secretaries of the Navy (Energy, Installations & Environment), 1990—present

| Name | Assumed office | Left office | President appointed by | Secretary served under |
| Assistant Secretaries of the Navy (Installations & Environment) |||||
| Jacqueline E. Schafer | 1990 | 1992 | George H. W. Bush | Henry L. Garrett III |
| Frederick S. Sterns (acting) | 1993 | 1994 | George H. W. Bush | J. Daniel Howard (acting) Frank Kelso (acting) |
| Robert B. Pirie Jr. | March 1994 | October 12, 2000 | Bill Clinton | John Howard Dalton Richard Danzig |
| Duncan Holaday (acting) | 2001 | 2001 | Bill Clinton | Gordon R. England |
| Hansford T. Johnson | August 7, 2001 | March 1, 2005 | George W. Bush | Gordon R. England |
| B. J. Penn | March 1, 2005 | March 13, 2009 | George W. Bush | Gordon R. England Donald C. Winter |
| Roger M. Natsuhara (acting) | August 2009 | March 5, 2010 | Barack Obama | Ray Mabus |
| Assistant Secretaries of the Navy (Energy, Installations & Environment) |||||
| Jackalyne Pfannenstiel | March 5, 2010 | July 2012 | Barack Obama | Ray Mabus |
| Dennis V. McGinn | September 3, 2013 | January 20, 2017 | Barack Obama | Ray Mabus |
| Steve Iselin (acting) | January 20, 2017 | 2018 | Donald Trump | Sean Stackley (acting) Richard V. Spencer |
| Phyllis L. Bayer | 2018 | March 2019 | Donald Trump | Richard V. Spencer |
| Todd C. Mellon (acting) | March 2019 | June 26, 2019 | Donald Trump | Richard V. Spencer |
| Lucian Niemeyer (acting) | June 26, 2019 | April 24, 2020 | Donald Trump | Richard V. Spencer Thomas Modly (acting) |
| Charles A. Williams | April 24, 2020 | January 20, 2021 | Donald Trump | Thomas Modly (acting) James McPherson (acting) Kenneth Braithwaite |
| Todd L. Schafer (acting) | January 20, 2021 | August 5, 2021 | Joe Biden | Thomas Harker (acting) |
| Meredith Berger | August 5, 2021 | January 20, 2025 | Joe Biden | Carlos Del Toro |
| Peter S. Lynch (acting) | January 20, 2025 | Incumbent | Donald Trump | Terence G. Emmert (acting) |