It is based at Paine Field in Everett, Washington, near Seattle.
Its last assignment was with the 25th Air Division at Paine Field, Washington.
Established and organized at Paine Field, Washington in 1943 as a command and control organization.
Paine Field was originally constructed in 1936 as a Works Progress Administration project.
Land just north of Paine Field was chosen to construct the new facilities, including some development on the airport itself.
The 747 made its first flight at Paine Field on February 9, 1969.
The airport is currently conducting an environmental assessment of the effects of commercial aviation at Paine Field.
Opposition to Paine Field hosting commercial air service was overwhelming in meetings held for comments on the draft environmental assessment.
The first E-767 made the first flight on October 4, 1994 at Paine Field, Washington.
The military, however was not totally absent from Paine Field during the postwar years.