Tex. Health & Safety Code § 773.004
(a) This chapter does not apply to:
(b) In this section, "industrial ambulance" means a vehicle owned and operated by an industrial facility that is not available for hire or use by the public except to assist the local community in a disaster or when existing ambulance service is not available, and includes a ground vehicle at an industrial site used:
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.
Amended by Acts 1991, 72nd Leg., ch. 14, Sec. 240, eff. Sept. 1, 1991;
Acts 1991, 72nd Leg., ch. 605, Sec. 2, eff. Sept. 1, 1991;
Acts 1993, 73rd Leg., ch. 376, Sec. 1, eff. Sept. 1, 1993.
Acts 2005, 79th Leg., Ch. 305 (S.B. 521), Sec. 1, eff. September 1, 2005.
Acts 2005, 79th Leg., Ch. 1034 (H.B. 1126), Sec. 4, eff. September 1, 2005.
Acts 2007, 80th Leg., R.S., Ch. 268 (S.B. 10), Sec. 14(a), eff. September 1, 2007.