Texas Local Government Code - LOC GOV'T § 387.010. Repeal or Rate Change

(1) reduce the rate of the tax or repeal the tax without an election, except that the district may not repeal the sales and use tax or reduce the rate of the sales and use tax below the amount pledged to secure payment of an outstanding district debt or contractual obligation;

(2) increase the rate of the sales and use tax, if the increased rate of the sales and use tax will not exceed the rate approved at an election held under Section 387.003; or

(3) increase the rate of the sales and use tax to a rate that exceeds the rate approved at an election held under Section 387.003 after the increase is approved by a majority of the votes received in the district at an election held for that purpose.