Tex. Transp. Code § 501.104
(b) A person described by Subsection (a) must possess:
(1) an acceptable ownership document or proof of ownership for any motor vehicle that is:
(2) a contract entered into with the owner, a work order, or another document that shows the authority for the person to possess any motor vehicle that is:
Added by Acts 1997, 75th Leg., ch. 165, Sec. 30.43(a), eff. Sept. 1, 1997. Renumbered from Transportation Code, Sec. 501.0929 and amended by Acts 2003, 78th Leg., ch. 1325, Sec. 17.02, eff. Sept. 1, 2003.
Acts 2011, 82nd Leg., R.S., Ch. 1296 (H.B. 2357), Sec. 47, eff. January 1, 2012.