37 Tex. Admin. Code § 259.606
Buildings shall be designed, constructed, and maintained in a manner to provide a safe, sanitary, secure, and structurally sound environment. Class A finishes are required on exterior and interior surfaces. Floor drains should be provided at wet areas. Building construction shall incorporate measures which protect against the entrance and infestation of vermin.
Source Note:The provisions of this §259.606 adopted to be effective April 28, 1994, 19 TexReg 2960; amended to be effective June 14, 1996, 21 TexReg 5001.