| A |
Department of Agriculture (1862- ) |
| AA |
ACTION (1971-1994) |
| AC |
Arms Control and Disarmament Agency (1961- ) |
| AE |
National Archives (1934- ) |
| AR |
International Bureau of the American Republics |
| B |
Broadcasting Board of Governors/International Broadcasting Bureau |
| C |
Department of Commerce (1913- ) |
| CA |
Civil Aeronautics Authority (1938-1940) |
| CAB |
Civil Aeronautics Board (1978-1985) |
| CC |
Federal Communications Commission (1934- ) |
| CR |
United States Commission on Civil Rights (1957- ) |
| CS |
Civil Service Commission (1883-1979) |
| CSA |
Community Services Administration (1974-1981) |
| CZ |
Canal Zone Government (1951-1979) |
| D |
Department of Defense (1949- ) |
| DC |
District of Columbia |
| E |
Department of Energy (1977- ) |
| EB |
Bureau of Efficiency (1916-1933) |
| EC |
Employees' Compensation Commission (1916-1946) |
| ED |
Department of Education (1979- ) |
| EP |
Environmental Protection Agency (1970- ) |
| ER |
Energy Research and Development Administration (1975- 1977) |
| FA |
Commission of Fine Arts (1910- ) |
| FAA |
Federal Aviation Agency (1958-1967) |
| FC |
Fish and Fisheries Commission (1880-1903) |
| FCA |
Farm Credit Administration (1933-1939, 1953- ) |
| FCD |
Federal Civil Defense Administration (1951-1958) |
| FE |
Federal Energy Administration (1974-1977) |
| FEM |
Federal Emergency Management Agency (1979- ) |
| FHF |
Federal Housing Finance Board (1989- ) |
| FHL |
Federal Home Loan Bank Board (1955-1989) |
| FL |
Federal Housing Administration (1939-1942) |
| FM |
Federal Mediation and Conciliation Service (1947- ) |
| FMC |
Federal Maritime Commission (1961- ) |
| FO |
Foreign Operations Administration (1953-1955) |
| FP |
Federal Power Commission (1920-1977) |
| FPI |
Federal Prison Industries, Inc. (1934-1939) |
| FR |
Federal Reserve System Board of Governors (1935- ) |
| FS |
Department of Health, Education and Welfare, etc. (1939-1969) |
| FT |
Federal Trade Commission (1914- ) |
| FTZ |
Foreign-Trade Zones Board (1934- ) |
| FW |
Federal Works Agency (1939-1949) |
| GA |
General Accounting Office (1921- ) |
| GB |
Geographic Board (1906-1934) |
| GP |
Government Printing Office/Superintendent of Documents (1895- ) |
| GS |
General Services Administration (1949- ) |
| HE |
Department of Health and Human Services (1980- ) |
| HH |
Department of Housing and Urban Development (1965- ) |
| HS |
Department of Homeland Security (2003- ) |
| I |
Department of the Interior (1849- ) |
| IA |
United States Information Agency (1953-1978, 1982-1999) |
| IC |
Interstate Commerce Commission (1987-1995) |
| ICA |
International Communication Agency (1978-1982) |
| ITC |
United States International Trade Commission (1981- ) |
| J |
Department of Justice (1870- ) |
| JU |
U.S. Courts |
| L |
Department of Labor (1913- ) |
| LA |
Bureau of Labor (1888-1903) |
| LC |
Library of Congress (1800- ) |
| LR |
National Labor Relations Board (1935- ) |
| M |
National Military Establishment (1947-1949) |
| MB |
Board of Mediation (1926-1934) |
| MC |
Maritime Commission (1936-1950) |
| MCB |
Board of Mediation and Concilation (1913-1921) |
| MS |
Merit Systems Protection Board (1979- ) |
| N |
Department of the Navy (1798-1947) |
| NA |
National Academy of Sciences (1863- ) |
| NAS |
National Aeronautics and Space Administration (1958- ) |
| NC |
National Capital Planning Commission (1952- ) |
| NCU |
National Credit Union Administration (1970- ) |
| NF |
National Foundation on the Arts and the Humanities (1965- ) |
| NHA |
National Housing Agency (1942-1947) |
| NMB |
National Mediation Board (1934- ) |
| NMC |
National Munitions Control Board (1936-1940) |
| NS |
National Science Foundation (1950- ) |
| OP |
Overseas Private Investment Corporation (1969- ) |
| P |
United States Postal Service (1970- ) |
| PA |
Pan American Union |
| PAC |
Canal Zone |
| PE |
Peace Corps (1982- ) |
| PM |
Office of Personnel Management (1979- ) |
| PR |
President of the United States |
| PREX |
Executive Office of the President (1961- ) |
| PRVP |
Vice President of the United States |
| PS |
Postal Savings System (1910-1966) |
| RC |
Federal Radio Commission (1927-1934) |
| RL |
Railroad Labor Board (1920-1926) |
| RNB |
Renegotiation Board (1951-1979) |
| RR |
Railroad Retirement Board (1935- ) |
| S |
Department of State (1789- ) |
| SB |
Shipping Board (1916-1933) |
| SBA |
Small Business Administration (1953- ) |
| SE |
Securities and Exchange Commission (1934- ) |
| SI |
Smithsonian Institution (1846- ) |
| SS |
Social Security Board (1935-1939) |
| SSA |
Social Security Administration (1995- ) |
| T |
Department of the Treasury (1789- ) |
| TC |
International Trade Commission (1974-1981) |
| TD |
Department of Transportation (1966- ) |
| TDA |
U.S. Trade and Development Agency |
| VA |
Department of Veterans Affairs (1930- ) |
| VE |
Federal Board for Vocational Education (1917-1933) |
| W |
Department of War (1789-1947) |
| X |
Congress |
| Y 1 |
Congress: House and Sentate reports, documents, bills, journals, etc. |
| Y 3 |
(A-L) Congress: Commissions, Committees, Boards |
| Y 3 |
(M-end) Congress: Commissions, Committees, Boards |
| Y 4 |
Congress: Hearings, Committee Prints, Publications |
| Y 6-10 |
Congress: Impeachment Proceedings, Memorial Addresses, CBO |
| Z |
Continental Congress Papers |
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