| Post: | Assistant Secretary of the Navy for Energy, Installations and Environment |
| Flag: | US-AssistantSecretaryOfTheNavy-Flag.svg |
| Flagsize: | 180 |
| Insignia: | File:Seal of the United States Department of the Navy.svg |
| Insigniacaption: | Seal of the Department of the Navy |
| Insigniasize: | 120 |
| Incumbent: | Meredith Berger |
| Incumbentsince: | August 5, 2021 |
| Acting: | n |
| Termlength: | No fixed term |
| Style: | Mr. Secretary The Honorable (formal address in writing) |
| Seat: | The Pentagon, Arlington County, Virginia, United States |
| Nominator: | The President with Senate advice and consent |
| Succession: | 18th in SecDef succession by seniority of appointment |
| Formation: | 1990 |
| First: | Jacqueline E. Schafer |
| Salary: | Executive Schedule, Level IV |
| Reports To: | Secretary of the Navy Under Secretary of the Navy |
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.[1]
| 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 | 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 | 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 | 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 | ||
| Steve Iselin (acting) | January 20, 2017 | 2018 | Donald Trump | Sean Stackley (acting) Richard V. Spencer |
| Phyllis L. Bayer | 2018 | March 2019 | Richard V. Spencer | |
| Todd C. Mellon (acting) | March 2019 | June 26, 2019 | ||
| Lucian Niemeyer (acting) | June 26, 2019 | March 2020 | Richard V. Spencer Thomas Modly (acting) | |
| Charles A. Williams | March 2020 | January 20, 2021 | 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 | present | Carlos Del Toro |