Air Force · AFSC history

563X0A Water Supply and Treatment

Water Supply and Treatment (563X0A) was dropped as a separate specialty subdivision, along with Waste Water and Sanitation (563X0B). The specialty took the title Environmental Support and code 566X1.

Codes named in this history

Historical steps

The source names a code the branch later retired, or whose reviewed record is historical. Its story continues on that code's own page.

Documented history

Water Supply and Treatment

The report dates this change to May 1975; no exact day is given.

Source extraction notes

One changing predecessor in the explicit two-shredout collapse into the report's stated present designation; printed shredout code preserved. Verified source wording: “Environmental Support Specialty (AFSC 566X1). In July 1971, the specialty was renamed Engineering Environmental Support and two shredouts were created: Water Supply and Treatment (563X0A) and Waste Water and Sanitation (563X0B). In May 1975, the shredouts were dropped and the specialty assumed its present title and designation.”

Source documents (1)

Reviewed September 23, 2026 against reference 1.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.