Tex. Fam. Code § 159.612
If a child support order issued by a tribunal of this state is modified by a tribunal of another state that assumed jurisdiction under the Uniform Interstate Family Support Act, a tribunal of this state:
Added by Acts 1995, 74th Leg., ch. 20, Sec. 1, eff. April 20, 1995.
Amended by Acts 2003, 78th Leg., ch. 1247, Sec. 39, eff. Sept. 1, 2003.
Acts 2015, 84th Leg., R.S., Ch. 368 (H.B. 3538), Sec. 51, eff. July 1, 2015.