(a) A municipality that is wholly or partly located in a county that contains territory within the boundaries of a regional transportation authority created under Chapter 452, Transportation Code, by a principal municipality having a population of more than 1.1 million according to the most recent federal decennial census and that has adopted an additional sales and use tax for the benefit of the municipality may hold an election on the question of whether the municipality shall be annexed to the authority.
(b) The election must be held in the manner required by Chapter 452, Transportation Code.

(c) If the annexation is approved by the voters, the election is to be treated for all purposes as an election to abolish the additional sales and use tax in the municipality and the tax is repealed in the manner provided by this chapter.