Listed below are selected federal organizations having any water related responsibilities or activities.

A complete list of federal organizations is online.

Executive Departments

• Department of Agriculture (USDA)

• Forest Service
• Natural Resources Conservation Service (NRCS)

• Department of Commerce (DOC)

• National Oceanic and Atmospheric Administration (NOAA)

• Department of Defense (DOD)

• U.S. Army Corps of Engineers (USACE)

• Institute for Water Resources (Alexandria, VA)
• Hydrologic Engineering Center (Davis, CA)
• Waterways Experiment Station (Vicksburg, MS)
• Construction Engineering Research Center (Champaign, IL)
• Army Environmental Policy Institute

• Department of Education (ED)
• Department of Energy (DOE)
• Department of Health and Human Services (HHS)
• Department of Housing and Urban Development (HUD)
• Department of Justice (DOJ)
• Department of Labor (DOL)
• Department of Interior (DOI)

U.S. Geological Survey (USGS) ]

National Park Service

• Department of Transportation (DOT)

Independent Agencies

• Environmental Protection Agency (EPA)
• Tennessee Valley Authority
• Federal Maritime Commission
• National Science Foundation

• Office of Government Ethics
• U.S. Office of Special Council (FOIA)
• Small Business Administration
• Securities and Exchange Commission
• U.S. National Archives and Records Administration
• Institute of Museum and Library Services
• Corporation for National and Community Service (Vista Volunteers)

Boards, Commissions and Committees

• Appalachian Regional Commission
• Delaware River Basin Commission
• Interstate Commission on the Potomac River Basin
• Mississippi River Commission
• Susquehanna River Basin Commission

• Committee on Foreign Investments in the US
• Endangered Species Committee
• Federal Advisory Committees
• Federal Executive Boards
• Federal Laboratory Consortium for Technology Transfer
• Federal Library and Information Center Committee
• Illinois and Michigan Canal National Heritage Corridor Commission
• Interagency Alternative Dispute Resolution Working Group
• Marine Mammal Commission
• Migratory Bird Conservation Commission
• Millennium Challenge Corporation. (Natural Resources Management Indicator Search)
• Morris K. Udall Foundation: Scholarship and Excellence in National Environmental Policy
• National Park Foundation
• Northwest Power Planning Council
• Nuclear Regulatory Commission
• President's Council on Integrity and Efficiency (Inspector General)
• Regulatory Information Service Center (B/C of rulemaking)