Regulatory framework
The code baseline for Mitchell County.
For unincorporated Mitchell County, the verified permit authority is the TCEQ Region 3 OSSF Program under Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285. The county's official website does not publish a county building department, structural building-code edition, general development permit, or county floodplain program for 2026; incorporated places may impose municipal building codes.