
- Current (as of 2023) Definition of Waters of the US
- The current Regional Supplements in Adobe .pdf format
- The 2022 Plant Lists in Adobe .pdf format
- The national Hydric Soils Lists in Adobe .pdf format
The 1990 and 2000’s were an exciting and changing time for wetland regulations. If you took the Wetland Delineation & Management Training Class offered by Richard Chinn Environmental Training, Inc. or Environmental Technology Center, we’d like to hear from you and provide some updated information for you, including but not limited to: