Relating to the authority of a county to establish drainage utilities, impose drainage fees, and regulate land use for the purpose of flood management.

HB 108 gives Texas counties the authority to establish drainage utilities for unincorporated areas, impose impact fees on new development to fund flood control improvements, and adopt land use regulations to manage flood risks. Counties can set rules like limits on impervious surfaces, lot sizes, and landscaping standards, but these must directly relate to flood management and cannot override municipal ordinances. The bill specifically applies to counties with populations of 3.3 million or more, or those bordering such counties, for impact fee authority. It also clarifies that county drainage systems must serve areas contributing to local watersheds while excluding municipal extraterritorial jurisdictions.