Regulatory framework
The code baseline for Callahan County.
Callahan County’s regulations adopted March 23, 2026 govern subdivision platting and construction standards outside incorporated cities, including roads, drainage, private sewage facilities, and development in the floodplain. They require Commissioners’ Court plat approval before filing and state that, as of adoption, the county had no FEMA-authorized floodplain boundary map; individual tracts require a floodplain determination. No specific county ICC building-code edition is published.