Texas Local Government Code - LOC GOV'T § 334.203. Rate Increase

(a) Except as provided by Section 334.2031, a municipality or county that has adopted a tax under this subchapter at a rate of less than $3 a vehicle may by ordinance or order increase the rate of the tax to a maximum of $3 a vehicle if the increase is approved by a majority of the registered voters of that municipality or county voting at an election called and held for that purpose.

(b) The ballot for an election to increase the rate of the tax shall be printed to permit voting for or against the proposition: “The increase of the parking tax for the purpose of financing _______ (insert description of venue project) to a maximum rate of _______ (insert new maximum rate not to exceed $3).”