In order to make alterations to, or temporarily or permanently occupy or use, any U.S. Army Corps of Engineers (USACE) federally authorized civil works project (e.g., federal levee) a Section 408 request must be submitted to the Omaha District for technical and policy compliance. Section 408 assures that proposed alterations are not injurious to the public interest and will not impair the usefulness of the project. Alterations proposed within a federally-constructed flood risk reduction project (FRRP) right-of-way (ROW) are subject to Section 408.