Tex. Transportation Code § 111.002: POWER AND AUTHORITY.

To the extent not preempted by federal law, the department:

(1) has power and authority over:

(A) railroads, including suburban, belt, and terminal railroads;

(B) public wharves, docks, piers, elevators, warehouses, sheds, tracks, and other property used in connection with railroads; and

(C) persons, associations, and private or municipal corporations that own or operate a railroad, or a wharf, dock, pier, elevator, warehouse, shed, track, or other property used in connection with a railroad; and

(2) shall govern and regulate those railroads, persons, associations, and corporations and prevent abuses in the conduct of their business.

Added by Acts 2009, 81st Leg., R.S., Ch. 85 (S.B. 1540), Sec. 2.03, eff. April 1, 2011.