150202-N-ZZ999-427 WASHINGTON (Feb. 2, 2015) Bill Deligne, left, executive director of Naval Sea Systems Command; Rear Adm. Katherine Gregory, commander of Naval Facilities Command; Vice Adm. Willy Hilarides, commander of Naval Sea Systems Command; and Beverly Hilarides render honors during a christening ceremony for the Humphreys Building, Building 197, at the Washington Navy Yard. After being displaced for nearly 17 months following the tragic events of Sept. 16, 2013 and subsequent renovation of Naval Sea Systems Command headquarters, employees began moving back into the building. (U.S. Navy photo by Scott Adam Webb/Released)