If the department acquires for a transportation project property that is a habitat of one or more species listed as endangered under the Endangered Species Act (16 U.S.C. Section 1531 et seq.) and that is within the boundaries of a regional habitat conservation plan, the department may participate in the regional habitat conservation plan. If the department does not comply with the regional habitat conservation plan, it shall comply with the Endangered Species Act and the applicable requirements of the United States Fish and Wildlife Service.
Tex. Transp. Code § 201.606