10 Tex. Admin. Code § 23.2
Notice shall be effective when postmarked for delivery by first class or a higher class mail at the address reflected in the records of the agency.
Source Note:The provisions of this §23.2 adopted to be effective February 18, 1981, 6 TexReg 553; transferred effective September 1, 1991, as published in the Texas Register, October 11, 1991, 16 TexReg 5737.