An authority may study, evaluate, design, finance, acquire, construct, operate, maintain, repair, expand, or extend a transportation project in:
(1) a county that is a part of the authority;
(2) a county in this state that is not a part of the authority if the county and authority enter into an agreement under § 370.033(f); or
(3) a county in another state or the United Mexican States if:
(A) each governing body of a political subdivision in which the project will be located agrees to the proposed study, evaluation, design, financing, acquisition, construction, operation, maintenance, repair, expansion, or extension;
(B) the project will bring significant benefits to the counties in this state that are part of the authority;
(C) the county in the other state is adjacent to a county that:
(i) is part of the authority studying, evaluating, designing, financing, acquiring, constructing, operating, maintaining, repairing, expanding, or extending the transportation project; and
(ii) has a municipality with a population of 500,000 or more; and
(D) the governor approves the proposed study, evaluation, design, financing, acquisition, construction, operation, maintenance, repair, expansion, or extension.