Tex. Transportation Code § 547.204: VEHICLE EQUIPMENT TESTING: FEDERAL STANDARDS.

(a) For a vehicle or item of vehicle equipment subject to a motor vehicle safety standard of the United States, the department may, on or after the first sale of the vehicle or item of vehicle equipment:

(1) require the manufacturer to submit adequate test data to show that the vehicle or item of vehicle equipment complies with standards of the United States;

(2) review the manufacturer's laboratory test data and the qualifications of the laboratory; and

(3) independently test the vehicle or item of vehicle equipment.

(b) The department may not require certification or approval of an item of vehicle equipment subject to a motor vehicle safety standard of the United States.

(c) The department may not require a manufacturer of a vehicle or of an item of vehicle equipment subject to a motor vehicle safety standard of the United States to use an outside laboratory or a specified laboratory.

Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.