Tex. Transp. Code § 504.309
The department shall issue specialty license plates for persons who:
(1) are graduates of:
Added by Acts 2003, 78th Leg., ch. 1320, Sec. 6, eff. Sept. 1, 2003.
Acts 2007, 80th Leg., R.S., Ch. 1166 (H.B. 191), Sec. 5, eff. September 1, 2007.
Acts 2013, 83rd Leg., R.S., Ch. 397 (S.B. 165), Sec. 1, eff. September 1, 2013.