A registration is valid for the term for which it is issued by the Board.
22 Tex. Admin. Code § 159.107
The provisions of this §159.107 adopted to be effective November 3, 2011, 36 TexReg 7320; amended by Texas Register, Volume 39, Number 50, December 12, 2014, TexReg 9668, eff. 12/14/2014