Permitting is largely decentralized, with the City of Amarillo handling the vast majority of urban development. The county government provides minimal building oversight for unincorporated areas, focusing primarily on fire safety and environmental health, while flood plain management is coordinated through the Potter County Floodplain Administrator.
How this fits with the state
The state authority here is Texas Department of Licensing and Regulation; Texas State Board of Plumbing Examiners. The county file does not replace that — it adds the permit office, local overlays, and the actual filing path.