(a) To act as an authority’s representative, independent of a design-build contractor, for the procurement process and for the duration of the work on a transportation project, an authority shall select or designate:
(1) an engineer;
(2) a qualified firm, selected in accordance with § 2254.004, Government Code, that is independent of the design-build contractor; or
(3) a general engineering consultant that was previously selected by an authority and is selected or designated in accordance with § 2254.004, Government Code.
(b) The selected or designated engineer or firm has full responsibility for complying with Chapter 1001, Occupations Code.