ENVIRONMENTAL REVIEW.

(a) The commission by rule shall provide for the commission's environmental review of the department's transportation projects that are not subject to review under the National Environmental Policy Act (42 U.S.C. Section 4321 et seq.). The rules must provide for:

(1) public comment on the department's environmental reviews, including the types of projects for which public hearings are required, and a procedure for requesting a public hearing on an environmental review for which a public hearing is not required;

(2) the department's evaluation of direct and indirect effects of its projects;

(3) analysis of project alternatives; and

(4) a written report that briefly explains the department's decision on a project and that specifies the mitigation measures on environmental harm on which the project is conditioned.

(b) An environmental review of a project must be conducted before the location or alignment of the project has been adopted.

(c) The commission shall consider the results of its reviews in executing its duties.

(d) The department shall coordinate with the Texas Commission on Environmental Quality and the Parks and Wildlife Department in preparing an environmental review. To give those agencies time to respond, the department shall submit the review of a project and the department's mitigation proposals on the project to them for comment before the 30th day preceding the date on which the department issues the written report explaining its decision on that project.

(e) At least once during each five-year period, the commission, after a public hearing, shall review the rules relating to environmental reviews and make appropriate changes.