TERM OF PERMIT.
Tex. SPEC. DIST. LOCAL LAWS Code § 8801.159.
in effect(a) A permit issued under this chapter may be for a term not to exceed five years as set by the board.
(b) A permit does not become a vested right of the permit holder. The board may revoke or suspend a permit or amend its terms after notice and hearing when reasonably necessary to accomplish the purpose of this chapter.
