Tex. Transportation Code § 451.758

(a) Not later than the 60th day after the date an agreement is ratified by the public employer and the association, a petition signed by a number of registered voters who reside in the authority service area equal to 10 percent of the votes cast at the most recent general election in the county in which a majority of the territory within the corporate limits of the principal municipality in the authority is located may be presented to the county clerk of that county calling for the repeal of the agreement.

(b) If a petition is presented to the county clerk under Subsection (a), the authority shall:

(1) repeal the agreement; or

(2) certify that it is not repealing the agreement to the commissioners court of the county described by Subsection (a), which shall then call an election in the county to determine whether to repeal the agreement.

(c) An election called under Subsection (b)(2) may be held as part of the next regularly scheduled general election or at a special election called by the commissioners court for that purpose. The ballot shall be printed to provide for voting for or against the proposition: "Repeal the agreement ratified on _____ (date agreement was ratified) by the __________ (name of authority) and the peace officers employed by the authority concerning wages, salaries, rates of pay, hours of work, and other terms of employment."

(d) If a majority of the votes cast at the election favor the repeal of the agreement, the agreement is void.