19 March 2025 - Army Corps of Engineers Announces the Release of Updated Wetland Delineation Data Sheets and Updated Automated Wetland Determination Data Sheets (ADS)

U.S. Army Corps of Engineers
Published March 19, 2025

The U.S. Army Corps of Engineers (USACE) announces the release of updated ENG Forms 6116 (1-9), which are the wetland identification data sheets that are used for the ten Regional Supplements to USACE’s 1987 Wetland Delineation Manual. The ENG 6116 series forms received minor updates to 1) extend the Office of Management and Budget (OMB) expiration date and 2) update the soils sections to reflect the updates in the 2024 USDA-NRCS Field Indicators of Hydric Soils in the United States (Version 9.0). In conjunction with the release of the updated ENG 6116 series forms, USACE is also releasing updated versions of the Automated Wetland Determination Data Sheet (ADS), which have been updated to incorporate the updates in 1) the 2024 USDA-NRCS Field Indicators of Hydric Soils in the United States (Version 9.0) and 2) the 2022 National Wetland Plant List. These documents are available at the USACE Regulatory Headquarters Regional Supplements webpage in both Portable Document Format (PDF) and Microsoft Excel (Excel) file formats. The “User Guide for Automated Wetland Determination Data Sheets” is also available at that same location.

Practitioners should, at a minimum, utilize the PDF versions of the OMB-approved forms to document the presence or absence of wetlands for the applications related to the administration of the Clean Water Act (CWA) and the Rivers and Harbors Act (RHA). The Excel-based ADS is an optional tool.  However, the PDF versions do not provide the automated features found in the Excel-based versions.

LINK TO ADS AND USER GUIDE: (https://www.usace.army.mil/Missions/Civil-Works/Regulatory-Program-and-Permits/reg_supp/).  (under “General Information”)

Wetland determination data forms are used to document the presence or absence of wetlands, as outlined in the Regional Supplements to the Corps of Engineers Wetland Delineation Manual (Regional Supplements). The wetland determination data forms included in the Regional Supplements were initially published as PDF files which were intended to be manually completed by hand. A subsequent collaboration between the USACE Detroit District and the U.S. Army Engineer Research and Development Center’s Wetlands Regulatory Assistance Program resulted in the development of an automated, Excel-based ADS for each of the 10 Regional Supplements and an associated user guide to aid in ADS application. 

The Excel-based ADS increases technical accuracy by reducing errors and increases efficiency by automatically populating many of the field indicators of wetland hydrology, hydrophytic vegetation, and hydric soils. The ADS incorporates or includes the following:

  • Similar layout as the Regional Supplement wetland determination data forms,
  • Application of the most up-to-date plant species wetland indicator status ratings from the National Wetland Plant List (currently the 2022 National Wetland Plant List, version 3.5),
  • Automated calculation of hydrophytic vegetation indicators,
  • Automated interpretation of most hydric soil indicators and certain wetland hydrology indicators,
  • Automated features prompting users to complete or review required information,
  • Exportable to PDF or other electronic format, and the ability to print formatted hard copies, and
  • Application of the most up-to-date field indicators of hydric soils (currently version 9.0).

The ADS is utilized to document the presence or absence of wetlands. A wetland delineation alone is not a determination of the jurisdictional status of an area under the CWA or the RHA. Additional information and analysis beyond wetland delineation protocols is required to determine if an area is subject to CWA and/or RHA jurisdiction. The ADS do not provide any new guidance regarding wetland identification or delineation, or change USACE Regulatory program policies. Rather, the ADS provide a tool to help improve the efficiency and accuracy of field data collection and reporting. Users remain responsible for ensuring that wetland delineation data entry and analysis are accurate when utilizing the ADS for CWA and RHA applications.

For additional information on or application of the ADS, or to submit error reports, please contact autodatasheet@usace.army.mil.