Federal Agencies Solicit Comments on Draft Changes to 2022 National Wetland Plant List: The U.S. Army Corps of Engineers (USACE), as part of an interagency effort with the U.S. Environmental Protection Agency, the U.S. Fish and Wildlife Service and the U.S. Department of Agriculture Natural Resources Conservation Service, is announcing the availability of the draft changes to the 2022 NWPL and its web address to solicit public comments.  The public now has the opportunity to comment on the proposed changes to wetland indicator status ratings for two plant species in the Arid West region.  The Federal Register Notice (FRN) for the 2022 NWPL update can be found here: 2023-01026.   The public comment period ends on 21 March 2023. Additional information regarding public notice is available on HQs Regulatory website at https://www.usace.army.mil/Media/Announcements/Article/3274694/23-january-2023-federal-agencies-solicit-comments-on-draft-changes-to-2022-nati/. 

Final Revised Definition of "Waters of the United States:" On December 30, 2022, The U.S. Environmental Protection Agency (EPA) and the U.S. Department of the Army announced the final "Revised Definition of 'Waters of the United States'" rule. On January 18, 2023, the rule was published in the Federal Register; the rule will be effective on March 20, 2023. The final rule is available at: https://www.federalregister.gov/documents/2023/01/18/2022-28595/revised-definition-of-waters-of-the-united-states.  Additional information regarding the rule is available on EPA’s website at https://www.epa.gov/wotus. 

Notice of Availability of the Interim Draft of the National Ordinary High Water Mark Field Delineation Manual for Rivers and Streams: The U.S. Army Corps of Engineers (USACE) and the U.S. Environmental Protection Agency (EPA) jointly announce the availability of the Interim Draft of the National Ordinary High Water Mark Field Delineation Manual for Rivers and Streams (National OHWM Manual) and are soliciting public comments on this Interim Draft. To view the announcement see:  https://www.usace.army.mil/Media/Announcements/Article/3233308/1-december-2022-release-of-the-interim-draft-of-the-national-ordinary-high-wate/

Joint Public Notice - Notice of Availability of the Beta Streamflow Duration Assessment Method for Great Plains:  The method, data forms, and training opportunities are available at: https://www.epa.gov/streamflow-duration-assessment/beta-streamflow-duration-assessment-method-great-plains.  For additional information on the development of regional Streamflow Duration Assessment Methods for nationwide coverage, see: https://www.epa.gov/streamflow-duration-assessment.