(a) This subchapter does not apply to Angelina, Aransas, Blanco, Bowie, Calhoun, Camp, Cass, Cherokee, Comal, Dallas, Delta, DeWitt, Fayette, Franklin, Galveston, Gillespie, Grayson, Gregg, Harris, Harrison, Henderson, Hill, Hopkins, Houston, Jack, Jackson, Jasper, Lamar, Lavaca, McLennan, Milam, Montgomery, Morris, Nacogdoches, Newton, Parker, Rains, Red River, Refugio, Sabine, San Augustine, Shelby, Smith, Tarrant, Titus, Travis, Trinity, Tyler, Upshur, Van Zandt, Victoria, Washington, or Wood County.
(b) Notwithstanding Subsection (a), the commissioners court of Collin or Dallas County may adopt this subchapter instead of the special law for that county if the court determines that this subchapter is better suited to that county than the special law.