(a) Except as provided by Section 452.707, the territory proposed to be included in an authority must contain all territory:
(1) in the county of the principal municipality; and
(2) in each unit of election that has the majority of its population in the county of the principal municipality.
(b) The territory may include territory in a county having a population of more than 52,000 adjacent to the county of the principal municipality.
(c) Notwithstanding Section 311.032, Government Code, or other law, this section is not severable.
Official text of the Texas Transportation Code as published by the Texas Legislative Council.