I just went through the outstanding appropriations bills and came up with this incomplete list of agencies that would be affected if parts of the U.S. federal government “shut down” at midnight tonight.

President Trump insists that he won’t sign a 2019 budget bill—not even a stopgap to keep the government open for a few weeks—unless it includes $5 billion to build a wall on the U.S.-Mexico border. Senate rules require 60 votes to stop debate and vote on such a bill. There are only 51 Republicans in this Senate, and 53 in the Senate that begins on January 1 (when the House becomes majority Democratic). So this “partial shutdown” could drag on for a very long time.

Many of the agencies listed here will continue to operate to some extent, by requiring “essential” staff to report for work (though who knows when they’ll be paid), by depending on fee-based revenue, or other means. But if this shutdown is prolonged, nearly all will find themselves unable to operate normally, if at all.

Department of Agriculture

  • Animal and Plant Health Inspection Service
  • Child Nutrition Programs
  • Food Safety and Inspection Service
  • Special Supplemental Nutrition Program for Women, Infants, and Children (WIC)
  • Supplemental Nutrition Assistance Program (SNAP, formerly known as the food stamp program)

Department of Commerce

  • Bureau of the Census
  • National Institute of Standards and Technology
  • National Oceanic and Atmospheric Administration
  • U.S. Patent and Trademark Office

Department of Homeland Security

  • Domestic Nuclear Detection Office
  • Federal Emergency Management Agency (FEMA)
  • Federal Law Enforcement Training Centers
  • Transportation Security Administration
  • U.S. Citizenship and Immigration Services
  • U.S. Coast Guard
  • U.S. Customs and Border Protection and Border Patrol
  • U.S. Immigration and Customs Enforcement
  • U.S. Secret Service

Department of Housing and Urban Development

  • Federal Housing Administration
  • Government National Mortgage Association

Department of the Interior

  • Bureau of Indian Affairs
  • Bureau of Land Management
  • Forest Service
  • National Park Service
  • U.S. Fish and Wildlife Service
  • U.S. Geological Survey

Department of Justice

  • Bureau of Alcohol, Tobacco, Firearms, and Explosives
  • Drug Enforcement Administration
  • Federal Bureau of Investigation
  • Federal Prison System
  • U.S. Attorneys

Department of State

  • Export-Import Bank of the United States
  • Inter-American Foundation
  • Millennium Challenge Corporation
  • Overseas Private Investment Corporation
  • Peace Corps
  • U.S. African Development Foundation
  • U.S. Agency for International Development
  • U.S. Trade and Development Agency

Department of Transportation

  • Federal Aviation Administration
  • Federal Highway Administration
  • National Highway Traffic Safety Administration

Department of the Treasury

  • Office of Foreign Assets Control
  • Office of Terrorism and Financial Intelligence
  • U.S. Mint

The White House

  • Council of Economic Advisers
  • Executive Office of the President
  • Homeland Security Council
  • National Security Council
  • Office of Management and Budget (OMB)
  • Office of National Drug Control Policy

The Judiciary

  • Courts of Appeals, District Courts, and Other Judicial Services
  • Supreme Court of the United States
  • U.S. Court of Appeals for the Federal Circuit

Independent Agencies

  • Broadcasting Board of Governors
  • Consumer Product Safety Commission (CPSC)
  • Environmental Protection Agency
  • Equal Employment Opportunity Commission
  • Federal Communications Commission (FCC)
  • Federal Deposit Insurance Corporation
  • Federal Election Commission
  • Federal Trade Commission (FTC)
  • General Services Administration (GSA)
  • John F. Kennedy Center for the Performing Arts
  • NASA
  • National Archives and Records Administration
  • National Endowment for Democracy
  • National Endowment for the Arts
  • National Endowment for the Humanities
  • National Gallery of Art
  • National Science Foundation
  • National Transportation Safety Board
  • Office of Government Ethics
  • Office of Personnel Management (OPM)
  • Office of the U.S. Trade Representative
  • Securities and Exchange Commission (SEC)
  • Selective Service System
  • Small Business Administration
  • the Smithsonian Institution
  • U.S. Institute of Peace
  • U.S. International Trade Commission
  • United States Holocaust Memorial Museum
  • Washington, DC
  • Woodrow Wilson International Center for Scholars