EPARulemakingEPA-HQ-OW-2025-0322

Updated Definition of Waters of the United States

RIN

2040-AG44

Last modified

Jun 30, 2026

Comment window

closed 204d ago

Association of American Railroads filings

Activity

Association of American Railroads filed 1 comment on this docket between Jan 6, 2026 and Jan 6, 2026. 271 other organizations filed here. The comment window closed 204d ago.

What Association of American Railroads filed (1)

Jan 6, 2026· Comment submitted by Association of American Railroads (AAR) and American Short Line & Regional Railroad Association (ASLRRA)· EPA-HQ-OW-2025-0322-0468

Attached please find the comments of the Association of American Railroads and the American Short Line and Regional Railroad Association.

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Abstract

The U.S. Environmental Protection Agency and the U.S. Department of the Army are undertaking a rulemaking to revise the regulations defining the scope of waters federally covered under the Clean Water Act in light of the Supreme Court’s decision in Sackett v. Environmental Protection Agency, 598 U.S. 651 (2023). With this proposed rule, the agencies intend to provide greater regulatory certainty and increase Clean Water Act program predictability and consistency by clarifying the definition of “waters of the United States.” Related Dockets: EPA-HQ-OW-2025-0093; EPA-HQ-OW-2021-0602; EPA-HQ-OW-2023-0346

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Co-filers (271)

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Association of American RailroadsTHIS ORG
1 filing · confidence 97%
Center for Biological Diversity
11 filings · confidence 97%
Izaak Walton League of Americatrade assoc.
9 filings · confidence 85%
League of Women Voterstrade assoc.
9 filings · confidence 97%
Natural Resources Defense Council (NRDC)trade assoc.
4 filings · confidence 97%
Environmental Protection Network (EPN)trade assoc.
3 filings · confidence 97%
National Association of Wetland Managerstrade assoc.
3 filings · confidence 85%
National Religious Partnership for the Environmenttrade assoc.
3 filings · confidence 85%
Wisconsin Wetlands Associationtrade assoc.
3 filings · confidence 85%
Agricultural Retailers Associationtrade assoc.
2 filings · confidence 97%
Association of Clean Water Administratorstrade assoc.
2 filings · confidence 85%
Climate Justice Alliancetrade assoc.
2 filings · confidence 85%
Deschutes River Alliancetrade assoc.
2 filings · confidence 85%
Environmental Council of the Statestrade assoc.
2 filings · confidence 85%
Environmental Defense Fundtrade assoc.
2 filings · confidence 97%
National Tribal Water Counciltrade assoc.
2 filings · confidence 85%
National Wildlife Federationtrade assoc.
2 filings · confidence 85%
Nevada Association of Countiestrade assoc.
2 filings · confidence 85%
Obelisk Tech Systems Inc.unverified attribution
2 filings · confidence 70%
Outdoor Alliancetrade assoc.
2 filings · confidence 85%
Society of Wetland Scientiststrade assoc.
2 filings · confidence 85%
Society of Wetland Scientists Professional Certification Programtrade assoc.
2 filings · confidence 85%
Susitna River Coalitiontrade assoc.
2 filings · confidence 85%
Turtle Island Restoration Network (TIRN)trade assoc.
2 filings · confidence 97%
Waters Advocacy Coalitiontrade assoc.
2 filings · confidence 85%
4th Generation Home Builders LLCunverified attribution
1 filing · confidence 70%
Adirondack Counciltrade assoc.
1 filing · confidence 85%
Alabama Farmers Federationtrade assoc.
1 filing · confidence 85%
Alameda Creek Alliancetrade assoc.
1 filing · confidence 85%
Alaska Chambertrade assoc.
1 filing · confidence 85%
Alaska Miners Associationtrade assoc.
1 filing · confidence 85%
Alaska Oil and Gas Associationtrade assoc.
1 filing · confidence 85%
Alliance for Chemical Distributiontrade assoc.
1 filing · confidence 85%
Alliance for the Great Lakestrade assoc.
1 filing · confidence 85%
American Association of State Highway and Transportation Officialstrade assoc.
1 filing · confidence 85%
American Chemistry Counciltrade assoc.
1 filing · confidence 97%
American Council of Engineering Companiestrade assoc.
1 filing · confidence 85%
American Cultural Resources Associationtrade assoc.
1 filing · confidence 85%
American Energy + AI Coalition (AE+AI)trade assoc.
1 filing · confidence 85%
American Enterprise Institutetrade assoc.
1 filing · confidence 85%
American Exploration & Mining Associationtrade assoc.
1 filing · confidence 85%
American Farm Bureau Federationtrade assoc.
1 filing · confidence 97%
American Fisheries Society (AFS) and Coastal and Estuarine Research Federationtrade assoc.
1 filing · confidence 85%
American Fly Fishing Trade Associationtrade assoc.
1 filing · confidence 85%
American Forest & Paper Associationtrade assoc.
1 filing · confidence 97%
American Institute of Architectstrade assoc.
1 filing · confidence 85%
American Petroleum Institutetrade assoc.
1 filing · confidence 97%
American Public Power Associationtrade assoc.
1 filing · confidence 97%
American Public Works Associationtrade assoc.
1 filing · confidence 85%
American Road & Transportation Builders Associationtrade assoc.
1 filing · confidence 97%
American Society of Civil Engineerstrade assoc.
1 filing · confidence 85%
American Soybean Associationtrade assoc.
1 filing · confidence 97%
American Sugar Cane Leaguetrade assoc.
1 filing · confidence 85%
American Water Works Associationtrade assoc.
1 filing · confidence 97%
Americans for Prosperity Foundationtrade assoc.
1 filing · confidence 85%
Appalachian Flood Resilience Coalitiontrade assoc.
1 filing · confidence 85%
Aquarium Conservation Partnershiptrade assoc.
1 filing · confidence 85%
Arizona Chamber of Commerce & Industrytrade assoc.
1 filing · confidence 85%
Arizona Farm Bureau Federationtrade assoc.
1 filing · confidence 97%
Arizona Mining Associationtrade assoc.
1 filing · confidence 85%
Arizona Riparian Counciltrade assoc.
1 filing · confidence 85%
Association of American Railroads (AAR) and American Short Line and Regional Railroad Associationtrade assoc.
1 filing · confidence 85%
Association of California Water Agenciestrade assoc.
1 filing · confidence 85%
Association of Fish and Wildlife Agenciestrade assoc.
1 filing · confidence 85%
Association of Metropolitan Water Agenciestrade assoc.
1 filing · confidence 97%
Association of State Drinking Water Administratorstrade assoc.
1 filing · confidence 85%
Association of State Floodplain Managerstrade assoc.
1 filing · confidence 85%
Basin Electric Power Cooperativeunverified attribution
1 filing · confidence 70%
Building Industry Association of Central South Carolinatrade assoc.
1 filing · confidence 85%
Building Industry Association of Washingtontrade assoc.
1 filing · confidence 85%
California Association of Sanitation Agenciestrade assoc.
1 filing · confidence 85%
California Council of Trout Unlimitedtrade assoc.
1 filing · confidence 85%
California Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
California State Association of Countiestrade assoc.
1 filing · confidence 85%
California Stormwater Quality Associationtrade assoc.
1 filing · confidence 97%
Canoe Cruisers Associationtrade assoc.
1 filing · confidence 85%
Change the Chambertrade assoc.
1 filing · confidence 85%
Chickaloon Village Traditional Counciltrade assoc.
1 filing · confidence 85%
Clayton Properties Group dba Arbor Homes; Cincinnati/Dayton Divisionunverified attribution
1 filing · confidence 70%
Clean Water for All Coalitiontrade assoc.
1 filing · confidence 85%
Cleco Power LLCunverified attribution
1 filing · confidence 70%
Coalition for the Delaware River Watershedtrade assoc.
1 filing · confidence 85%
Coalition of Arizona/New Mexico Counties for Stable Economic Growthtrade assoc.
1 filing · confidence 85%
Coalition of Local Governmentstrade assoc.
1 filing · confidence 85%
Coalition to Protect America's National Parkstrade assoc.
1 filing · confidence 85%
Competitive Enterprise Institutetrade assoc.
1 filing · confidence 85%
Conservation Federation of Missouritrade assoc.
1 filing · confidence 85%
Cosumnes Corporation d/b/a Murieta Equestrian Centerunverified attribution
1 filing · confidence 70%
CPAC Foundation Center for Regulatory Freedomtrade assoc.
1 filing · confidence 85%
Curyung Tribal Counciltrade assoc.
1 filing · confidence 85%
Dallas Builders Associationtrade assoc.
1 filing · confidence 85%
Doan Brook Watershed Partnershiptrade assoc.
1 filing · confidence 85%
Ecological Restoration Business Associationtrade assoc.
1 filing · confidence 85%
Edison Electric Institutetrade assoc.
1 filing · confidence 97%
Energy and Wildlife Action Coalitiontrade assoc.
1 filing · confidence 85%
EPA Region 10 Tribal Operations Committeetrade assoc.
1 filing · confidence 85%
Essential Minerals Associationtrade assoc.
1 filing · confidence 85%
Farmington River Watershed Associationtrade assoc.
1 filing · confidence 85%
Federal Storm Water Associationtrade assoc.
1 filing · confidence 85%
Federal Water Quality Coalition.trade assoc.
1 filing · confidence 85%
Florida Electric Power Coordinating Group Environmental Committeetrade assoc.
1 filing · confidence 85%
Florida Home Builders Associationtrade assoc.
1 filing · confidence 85%
Food with Thought AI LLCunverified attribution
1 filing · confidence 70%
Friends of the Kalmiopsis and Kalmiopsis Audubon Societytrade assoc.
1 filing · confidence 85%
Golf Course Superintendents Association of Americatrade assoc.
1 filing · confidence 85%
GPA Midstream Associationtrade assoc.
1 filing · confidence 97%
Greater Edwards Aquifer Alliancetrade assoc.
1 filing · confidence 85%
Greater Yellowstone Coalitiontrade assoc.
1 filing · confidence 85%
Healing Our Waters - Great Lakes Coalitiontrade assoc.
1 filing · confidence 85%
Henry's Fork Foundationtrade assoc.
1 filing · confidence 85%
Home Builders Association (HBA) of Greater Savannahtrade assoc.
1 filing · confidence 85%
Hoosic River Watershed Associationtrade assoc.
1 filing · confidence 85%
Idaho Council of Trout Unlimitedtrade assoc.
1 filing · confidence 85%
Idaho Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
Ihanktonwan Dakota Oyate Treaty Steering Committeetrade assoc.
1 filing · confidence 85%
Illinois Association of Aggregate Producerstrade assoc.
1 filing · confidence 85%
Illinois Division of Izaak Walton League of Americatrade assoc.
1 filing · confidence 85%
Indiana Builders Associationtrade assoc.
1 filing · confidence 85%
Indiana Division of Izaak Walton League of Americatrade assoc.
1 filing · confidence 85%
Indiana Wetlands Associationtrade assoc.
1 filing · confidence 85%
Institute for Energy Researchtrade assoc.
1 filing · confidence 85%
Intermountain Aquatics Inc.unverified attribution
1 filing · confidence 70%
International Association for Great Lakes Researchtrade assoc.
1 filing · confidence 85%
Iowa Division of Izaak Walton League of Americatrade assoc.
1 filing · confidence 85%
Iowa Environmental Council.trade assoc.
1 filing · confidence 85%
Izaak Walton League of America - Nebraska Divisiontrade assoc.
1 filing · confidence 85%
Kansas Natural Resource Coalitiontrade assoc.
1 filing · confidence 85%
Kentucky Ecological Restoration Associationtrade assoc.
1 filing · confidence 85%
Kentucky Waterways Alliancetrade assoc.
1 filing · confidence 85%
Klamath Water Users Associationtrade assoc.
1 filing · confidence 85%
Kootenai Environmental Alliancetrade assoc.
1 filing · confidence 85%
L.I.G.H.T. Foundationtrade assoc.
1 filing · confidence 85%
Leeward Solutions LLCunverified attribution
1 filing · confidence 70%
Louisiana Chemical Association (LCA) and Louisiana Mid-Continent Oil & Gas Associationtrade assoc.
1 filing · confidence 85%
Lower Colorado River Authority (LCRA) and Lower Colorado River Authority Transmission Services Corporationunverified attribution
1 filing · confidence 70%
Lummi Indian Business Counciltrade assoc.
1 filing · confidence 85%
Maine Association of Wetland Scientists.trade assoc.
1 filing · confidence 85%
Maryland Division of the Izaak Walton League of Americatrade assoc.
1 filing · confidence 85%
Mass Comment Campaign sponsored by Alliance of Nurses for Healthy Environmentstrade assoc.
1 filing · confidence 85%
Mass comment campaign sponsored by National Religious Partnership for the Environmenttrade assoc.
1 filing · confidence 85%
Mass Comment Campaign sponsored by North Carolina Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
Massachusetts Rivers Alliancetrade assoc.
1 filing · confidence 85%
Michigan Aggregates Associationtrade assoc.
1 filing · confidence 85%
Mill Creek Alliancetrade assoc.
1 filing · confidence 85%
Mill River Watershed Association of South Central Connecticuttrade assoc.
1 filing · confidence 85%
Minnesota Cities Stormwater Coalitiontrade assoc.
1 filing · confidence 85%
Minnesota Division of the Izaak Walton League of Americatrade assoc.
1 filing · confidence 85%
Missouri Corn Growers Associationtrade assoc.
1 filing · confidence 85%
Missouri Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
Missouri Stream Team Watershed Coalitiontrade assoc.
1 filing · confidence 85%
Montana Stockgrowers Associationtrade assoc.
1 filing · confidence 85%
Multicultural Alliance for a Safe Environmenttrade assoc.
1 filing · confidence 85%
National Association of Clean Water Agencies (NACWA)trade assoc.
1 filing · confidence 97%
National Association of Conservation Districtstrade assoc.
1 filing · confidence 85%
National Association of Flood and Stormwater Management Agenciestrade assoc.
1 filing · confidence 85%
National Association of Home Builderstrade assoc.
1 filing · confidence 97%
National Association of Manufacturers (NAM)trade assoc.
1 filing · confidence 97%
National Association of State Departments of Agriculturetrade assoc.
1 filing · confidence 85%
National Association of State Foresterstrade assoc.
1 filing · confidence 85%
National Association of Towns and Townshipstrade assoc.
1 filing · confidence 85%
National Association of Wheat Growerstrade assoc.
1 filing · confidence 85%
National Associations of Countiesunverified attribution
1 filing · confidence 70%
National Cattlemen's Beef Associationtrade assoc.
1 filing · confidence 97%
National Corn Growers Associationtrade assoc.
1 filing · confidence 97%
National Cotton Counciltrade assoc.
1 filing · confidence 97%
National Electrical Contractors Associationtrade assoc.
1 filing · confidence 85%
National Environmental Banking Associationtrade assoc.
1 filing · confidence 85%
National Farmers Unionunverified attribution
1 filing · confidence 70%
National Federation of Independent Businesstrade assoc.
1 filing · confidence 97%
National Ground Water Associationtrade assoc.
1 filing · confidence 85%
National League of Cities and US Conference of Mayorstrade assoc.
1 filing · confidence 85%
National Mining Associationtrade assoc.
1 filing · confidence 97%
National Multifamily Housing Council (NMHC) and National Apartment Associationtrade assoc.
1 filing · confidence 85%
National Municipal Stormwater Alliancetrade assoc.
1 filing · confidence 85%
National Ready Mixed Concrete Associationtrade assoc.
1 filing · confidence 85%
National Rural Electric Cooperative Associationtrade assoc.
1 filing · confidence 97%
National Tribal Caucustrade assoc.
1 filing · confidence 85%
National Turkey Federationtrade assoc.
1 filing · confidence 85%
National Water Resources Associationtrade assoc.
1 filing · confidence 85%
Native Plant Society of New Mexicotrade assoc.
1 filing · confidence 85%
Nebraska Corn Growers Associationtrade assoc.
1 filing · confidence 85%
Nebraska Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
New Mexico Association of Conservation Districtstrade assoc.
1 filing · confidence 85%
New Mexico Cattle Growers' Associationtrade assoc.
1 filing · confidence 85%
New Mexico Federal Lands Counciltrade assoc.
1 filing · confidence 85%
New York University School of Lawunverified attribution
1 filing · confidence 70%
Norbeck Societytrade assoc.
1 filing · confidence 85%
North Carolina (NC) Ag Partnershiptrade assoc.
1 filing · confidence 85%
North Carolina Aggregates Associationtrade assoc.
1 filing · confidence 85%
North Carolina Environmental Restoration Associationtrade assoc.
1 filing · confidence 85%
North Dakota Farmers Unionunverified attribution
1 filing · confidence 70%
North Dakota Petroleum Counciltrade assoc.
1 filing · confidence 85%
North Dakota Soybean Growers Associationtrade assoc.
1 filing · confidence 85%
Northern Virginia Bird Alliancetrade assoc.
1 filing · confidence 85%
Northshore Business Counciltrade assoc.
1 filing · confidence 85%
Ohio Aggregates & Industrial Minerals Associationtrade assoc.
1 filing · confidence 85%
Ohio Home Builders Associationtrade assoc.
1 filing · confidence 85%
Ohio Oil and Gas Associationtrade assoc.
1 filing · confidence 85%
Old Town Design Group LLCunverified attribution
1 filing · confidence 70%
Olympic Peninsula Audubon Societytrade assoc.
1 filing · confidence 85%
Oregon Council of Trout Unlimitedtrade assoc.
1 filing · confidence 85%
Pacific Legal Foundationtrade assoc.
1 filing · confidence 85%
Park County Environmental Counciltrade assoc.
1 filing · confidence 85%
Partnership for Policy Integritytrade assoc.
1 filing · confidence 85%
Pennsylvania Aggregates & Concrete Associationtrade assoc.
1 filing · confidence 85%
Pennsylvania Council of Trout Unlimitedtrade assoc.
1 filing · confidence 85%
Petition for Reconsideration submitted by Citizens Rulemaking Alliancetrade assoc.
1 filing · confidence 85%
Pilchuck Audubon Societytrade assoc.
1 filing · confidence 85%
Plains Redevelopment Corporationunverified attribution
1 filing · confidence 70%
Pomona Valley Protective Associationtrade assoc.
1 filing · confidence 85%
Prairie Hills Audubon Societytrade assoc.
1 filing · confidence 85%
Prime Mover Institutetrade assoc.
1 filing · confidence 85%
Property Owners Association of Riverside Countytrade assoc.
1 filing · confidence 85%
Puget Sound Partnership and Recreation and Conservation Officetrade assoc.
1 filing · confidence 85%
Rachel Carson Counciltrade assoc.
1 filing · confidence 85%
Resource Development Council for Alaskatrade assoc.
1 filing · confidence 85%
Restore the Mississippi River Delta Coalitiontrade assoc.
1 filing · confidence 85%
River des Peres Watershed Coalitiontrade assoc.
1 filing · confidence 85%
Rocky River Watershed Counciltrade assoc.
1 filing · confidence 85%
Sacramento River Settlement Contractors (SRSC) and the Northern California Water Associationtrade assoc.
1 filing · confidence 85%
Saint Mary's University of Minnesotaunverified attribution
1 filing · confidence 70%
San Gabriel Valley Water Associationtrade assoc.
1 filing · confidence 85%
Sand & Gravel Associationtrade assoc.
1 filing · confidence 85%
Sierra Club
1 filing · confidence 97%
Sierra Streams Institutetrade assoc.
1 filing · confidence 85%
Simplot Companyunverified attribution
1 filing · confidence 70%
SmarterSafer Coalitiontrade assoc.
1 filing · confidence 85%
Snake Lungworm Alliance and Monitoringtrade assoc.
1 filing · confidence 85%
Society for Range Managementtrade assoc.
1 filing · confidence 85%
Solar Energy Industries Associationtrade assoc.
1 filing · confidence 85%
South Carolina Mitigation Associationtrade assoc.
1 filing · confidence 85%
South Sound Bird Alliancetrade assoc.
1 filing · confidence 85%
Southeast Alaska Conservation Counciltrade assoc.
1 filing · confidence 85%
Southern Environmental Law Center (SELC)
1 filing · confidence 97%
St. Marys River Management Committeetrade assoc.
1 filing · confidence 85%
St. Tammany Economic Development Corporationunverified attribution
1 filing · confidence 70%
Steel Manufacturers Associationtrade assoc.
1 filing · confidence 85%
Tennessee Ecological Restoration Associationtrade assoc.
1 filing · confidence 85%
Tennessee Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
Tennessee Wildlife Federationtrade assoc.
1 filing · confidence 85%
the Arkansas Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
The Brick Industry Associationtrade assoc.
1 filing · confidence 85%
The Master's University Agricultural Policy Classunverified attribution
1 filing · confidence 70%
the NACCO Natural Resources Corporationunverified attribution
1 filing · confidence 70%
The Nevada Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
The Petroleum Alliance of Oklahomatrade assoc.
1 filing · confidence 85%
Tip of the Mitt Watershed Counciltrade assoc.
1 filing · confidence 85%
Tribal EPA Region 6 - Regional Tribal Operations Committeetrade assoc.
1 filing · confidence 85%
Trilogy Advisors LLCunverified attribution
1 filing · confidence 70%
Trout Unlimited Inc.unverified attribution
1 filing · confidence 70%
Tulane Institute on Water Resources Law and Policytrade assoc.
1 filing · confidence 85%
U.S. Chamber of Commerce
1 filing · confidence 97%
U.S. Poultry & Egg Associationtrade assoc.
1 filing · confidence 85%
Uncompahgre Watershed Partnershiptrade assoc.
1 filing · confidence 85%
Union of Concerned Scientistsunverified attribution
1 filing · confidence 70%
Upper Agua Fria Watershed Partnershiptrade assoc.
1 filing · confidence 85%
US Cattlemen's Associationtrade assoc.
1 filing · confidence 85%
USGS Missouri Cooperative Fish and Wildlife Research Unitunverified attribution
1 filing · confidence 70%
Utah Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
Virginia League of Conservation Voterstrade assoc.
1 filing · confidence 85%
Washington Council of Trout Unlimitedtrade assoc.
1 filing · confidence 85%
Washington Legal Foundationtrade assoc.
1 filing · confidence 85%
Water Environment Federationtrade assoc.
1 filing · confidence 85%
Waterkeeper Alliancetrade assoc.
1 filing · confidence 85%
Western Division of the American Fisheries Societytrade assoc.
1 filing · confidence 85%
Western Energy Alliancetrade assoc.
1 filing · confidence 85%
Western States Water Counciltrade assoc.
1 filing · confidence 85%
Western Urban Water Coalitiontrade assoc.
1 filing · confidence 85%
WV Rivers Coalitiontrade assoc.
1 filing · confidence 85%
Wyoming County Commissioners Associationtrade assoc.
1 filing · confidence 85%
Wyoming Farm Bureau Federationtrade assoc.
1 filing · confidence 85%
X3 Construction LLCunverified attribution
1 filing · confidence 70%