We’ve made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Section 404 of the Clean Water Act

2002 Memorandum on Designation of Aquatic Resources of National Importance under Clean Water Act Section 404(q)

The 2002 Memorandum on Designation of Aquatic Resources of National Importance (ARNI) under Clean Water Act Section 404(q) highlights relevant portions of the 1992 404(q) Memorandum of Agreement (MOA) regarding elevating decision of specific individual permit cases. Cases that do not meet the ARNI resource threshold may not be elevated under the MOA.


You may need Adobe Reader to view files on this page. See EPA’s About PDF page to learn more.