Army Corps of Engineers Releases Updated National Wetland Plant List
The Army Corps of Engineers (Corps) recently published a notice in the Federal Register announcing the availability of the final 2022 National Wetland Plant List (2022 NWPL). The 2022 NWPL went into effect Feb. 13, 2024.
The 2022 NWPL update includes two listed species: Isocoma menziesii (Menzies’ goldenbush) and Populus fremontii (Frémont’s cottonwood). According to the Corps, these species are typically found in the Arid West. In total, the 2022 NWPL includes 8,115 species.
The NWPL contains wetland indicator status ratings for individual plant species. The ratings 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 (Farm Bill).
Other applications of the NWPL include wetland research, the development of restoration and compensatory mitigation goals, and the provision of general botanical information about wetland plants.
The NWPL is an interagency effort led by the Corps and supported by the Environmental Protection Agency, Fish and Wildlife Service, and Dept. of Agriculture - Natural Resources Conservation Service.
Latest from NAHBNow
Advocacy
May 22, 2026
Local Leaders and Builders Unite to Tackle Workforce Gaps in HousingNAHB’s state and local team earlier this year helped convene mayors, city leaders, planners and builders in Orlando as part of the America’s Housing Comeback discussion series to examine workforce development challenges.
Advocacy
May 21, 2026
NAHB Urges Congress to Advance Housing Supply ReformsTestifying today before the House Small Business Committee on how small builders can help close the nation’s housing gap, NAHB Chairman Bill Owens said the core issue is a shortage of housing.
Latest Economic News
Economics
May 21, 2026
Single-Family Starts Fall Amid Economic Uncertainty and Affordability PressuresSingle-family housing starts declined in April as builders faced continued economic uncertainty and affordability challenges, including higher construction costs, ongoing labor shortages and elevated financing expenses. The latest housing starts and permits data suggest that the overall construction pipeline remains uneven across regions and property types.
Economics
May 21, 2026
Housing Affordability Edges Up in First Quarter but Challenges PersistWhile housing affordability remains out of reach for millions of Americans, particularly first-time and entry-level buyers, conditions have improved modestly in the last year, according to the latest data from the National Association of Home Builders (NAHB)/Wells Fargo Cost of Housing Index (CHI).
Economics
May 20, 2026
What It Takes to Leave Parental HomeAs of 2024, one in five adults aged 25-34 lives with parents or in-laws. NAHB’s analysis of the latest American Community Survey (ACS) Public Use Microdata Sample (PUMS) evaluates a wide range of socioeconomic and demographic factors that shape young adults’ path to independence.