22 May 2020 - Final 2018 National Wetland Plant List

USACE Regulatory
Published May 22, 2020

The U.S. Army Corps of Engineers, as part of an interagency effort with the U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service and U.S. Department of Agriculture Natural Resources Conservation Service, announce the availability of the final 2018 National Wetland Plant List (NWPL) in the Federal Register at https://www.govinfo.gov/content/pkg/FR-2020-05-18/pdf/2020-10630.pdf.  The 2018 NWPL is effective as of May 18, 2020 and will be used in any wetland delineations performed after this date.  Wetland delineation/determination forms should reference this version of the NWPL.  The 2018 NWPL is also available at http://wetland-plants.usace.army.mil/.  The NWPL provides plant species indicator status ratings, which are used in determining whether the hydrophytic vegetation factor is met when conducting wetland delineations under the Clean Water Act and wetland determinations under the Wetland Conservation Provisions of the Food Security Act.