Administration and federal agencies

White House
Senate
House of Representatives
Library of Congress legislative information
Supreme Court

Department of Agriculture
Department of Commerce
Department of Defense
Department of Education
Department of Energy
Department of Health and Human Services
Department of Homeland Security
Department of Housing and Urban Development
Department of the Interior
Department of Justice
Department of Labor
Department of State
Department of Transportation
Department of the Treasury
Department of Veterans Affairs

Advanced Research Projects Agency-Energy (ARPA-E)
Center for Medicare and Medicaid Services (CMS)
Centers for Disease Control and Prevention (CDC)
Defense Advanced Research Projects Agency (DARPA)
Environmental Protection Agency (EPA)
Federal Emergency Management Agency (FEMA)
Government Accountability Office (GAO)
Health Resources & Services Administration (HRSA)
Medicare Payment Advisory Commission (MedPAC)
National Aeronautics and Space Administration (NASA)
National Endowment for the Arts (NEA)
National Endowment for the Humanities (NEH)
National Nuclear Security Administration (NNSA)
National Institutes of Health (NIH)
National Institute of Standards and Technology (NIST)
National Oceanic and Atmospheric Administration (NOAA)
National Science Foundation (NSF)
U.S. Geological Survey (USGS)
Water Resources Research Institutes (WRRI)