Texas Water Code - WATER § 36.413. Decision; When Final

(a) A decision by the board on a permit or permit amendment application is final:

(b) Except as provided by Subsection (c), an applicant or a party to a contested hearing may file a suit against the district under Section 36.251 to appeal a decision on a permit or permit amendment application not later than the 60th day after the date on which the decision becomes final.

(c) An applicant or a party to a contested hearing may not file suit against the district under Section 36.251 if a request for rehearing was not filed on time.