(a) The department shall prescribe standards for and approve testing facilities to:(1) review test data submitted by a manufacturer to show compliance with a department standard; and(2) test an item of vehicle equipment independently in connection with a proceeding to determine compliance with a department standard.(b) The department may not impose a product certification or approval fee, including a fee for testing facility approval.(c) The department may:(1) by rule, require a manufacturer of an item of vehicle equipment sold in this state to submit adequate test data to show that the item complies with department standards;(2) periodically require a manufacturer to submit revised test data to demonstrate continuing compliance;(3) purchase an item of vehicle equipment at retail for the purpose of review and testing under Subsection (a); and(4) enter into cooperative arrangements with other states and interstate agencies to reduce duplication of testing and to facilitate compliance with rules under Subsection (c)(1). Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.