Wis. Admin. Code Department of Transportation Trans 400.03
The Wisconsin Environmental Policy Act (WEPA), s. 1.11, Stats., requires environmental documentation for major department actions that significantly affect the quality of the human environment. The National Environmental Policy Act (NEPA) and its implementing regulations similarly require environmental documentation for major federal actions, such as a federal agency approving the use of federal funds or issuing a permit for department actions. For department actions that require federal approval, the department prepares the required environmental documentation. Where NEPA applies to a department action, WEPA typically also applies. The intent of this chapter is to implement WEPA regulations that are consistent with NEPA and its implementing regulations for all department actions to which these laws apply.