Effective 28 JUL 21, NAVSEA requires all Headquarters Service members, Federal civilian employees, onsite contractors, and visitors to wear a mask in indoor settings while aboard installations and other facilities owned, leased, or otherwise controlled by DoD regardless of their vaccination status. Those working outside of Naval District Washington must abide by their leadership’s instructions. For more information refer to the SECDEF Memo dated 28 JUL 21.