Tex. Occ. Code § 1201.607

Any order issued by the director under this chapter, if not appealed before the 31st day after the date the order was issued, shall automatically become a final order. If the person made the subject of the order files a written request for a hearing with the director, the order shall be deemed to have been appealed and shall be a contested case under Chapter 2001, Government Code. The director shall set any appealed order for a hearing before the State Office of Administrative Hearings, and the board shall issue a final order after receiving and reviewing the proposal for decision issued pursuant to such hearing.