Tex. Gov't Code § 418.1153
The provision of mutual aid assistance under the system may continue until:
Added by Acts 2007, 80th Leg., R.S., Ch. 258 (S.B. 11), Sec. 1.07, eff. June 6, 2007.
Added by Acts 2007, 80th Leg., R.S., Ch. 865 (H.B. 1471), Sec. 1.07, eff. June 15, 2007.