Lineage. Constituted as 820 Installations Squadron on 23 Apr 1956. Activated on 1 Jun 1956. Inactivated on 1 Jan 1960. Redesignated as 820 Civil Engineering Squadron, and activated, on 7 Feb 1961. Organized on 1 Apr 1961. Discontinued, and inactivated, on 15 Sep 1964. Redesignated as 820 Civil