| Class Stem | Agency | Library | Notes |
|---|---|---|---|
| A 1. | Agriculture Department | LSM | |
| A 13. | Forest Service | LSM | |
| A 17. | National Agriculture Library | LSM | |
| A 21. | Communications Office | LSM | |
| A 33. | General Counsel | LSM | |
| A 43. | Extension Service | LSM | |
| A 49. | Personnel Office | LSM | |
| A 57. | Soil Conservation Service | LSM | |
| A 57. | Natural Resources Conservation Service | LSM | |
| A 62. | Federal Crop Insurance Corporation | LSM | |
| A 67. | Foreign Agricultural Service | LSM | |
| A 68. | Rural Utilities Service | LSM | |
| A 68. | Rural Electrification Administration | LSM | |
| A 72. | Farm Credit Administration | LSM | |
| A 77. | Agricultural Research Service | LSM | |
| A 77.300: | Entomology and Plant Quarantine Bureau | LSM | |
| A 77.400: | Experiment Stations Office | LSM | |
| A 77.440: | Alaska Agricultural Experimental Station | LSM | |
| A 77.500: | Plant Industry, Soils and Agriculture Engineering Bureau | LSM | |
| A 77.600: | Dairy Industry Bureau | LSM | |
| A 82. | Production and Marketing Administration | LSM | |
| A 82. | Agricultural Stabilization and Conservation Service | LSM | |
| A 82. | Commodity Stabilization Service | LSM | |
| A 82.300: | Commodity Credit Corporation | LSM | |
| A 84. | Farmers Home Administration | LSM | |
| A 85. | Commodity Exchange Authority | LSM | |
| A 86. | Food and Feed Conservation Office | LSM | |
| A 87. | Research and Marketing Act Administration | LSM | |
| A 88. | Agricultural Marketing Service | LSM | |
| A 92. | National Agricultural Statistics Service | LSM | Except Census of Agriculture(ALEX) |
| A 93. | Foreign Economic Development Service | LSM | |
| A 93. | Economic Research Service | LSM | |
| A 94. | Cooperative State Research, Education and Extension Service | LSM | |
| A 95. | International Agricultural Development Service | LSM | |
| A 96. | Packers and Stockyards Administration | LSM | |
| A 98. | Food and Consumer Service | LSM | |
| A 101. | Animal and Plant Health Inspection Service | LSM | |
| A 104. | Federal Grain Inspection Service | LSM | |
| A 105. | Economics, Statistics and Cooperative Service | LSM | |
| A 106. | Science and Education | LSM | |
| A 107. | Congressional Relations Office | LSM | |
| A 107. | Congressional and Intergovernmental Relations Office | LSM | |
| A 108. | Transportation Office | LSM | |
| A 109. | Rural Business and Cooperative Development Services | LSM | |
| A 110. | Food Safety and Inspection Service | LSM | |
| A 112. | Farm Service Agency | LSM | |
| A 112. | Consolidated Farm Service Agency | LSM | |
| A 113. | Grain Inspection, Packers and Stockyards Administration | LSM | |
| A 114. | Rural Development | LSM | |
| A 115. | Rural Housing Service | LSM | |
| AA | Action | ALEX | |
| AC | Arms Control and Disarmament Agency | ALEX | |
| AE 1. | National Archives and Records Administration | ALEX | |
| AE 2.100: | Federal Register Office | ALEX | |
| B 1. | Broadcasting Board of Governors | ALEX | |
| B 2. | International Broadcasting Bureau | ALEX | |
| C 1. | Commerce Department | ALEX | Except technical reports(LSM) |
| C 1.100: | Minority Business Development Agency | ALEX | |
| C 3. | Census Bureau | ALEX | |
| C 4. | Coast and Geodetic Survey | LSM | |
| C 13. | National Bureau of Standards | LSM | |
| C 13. | National Institute of Standards and Technology (NIST) | LSM | |
| C 21. | Patent and Trademark Office | LSM | |
| C 21. | Patent Office | LSM | |
| C 31.200 | Civil Aeronautics Board | ALEX | |
| C 39. | Maritime Administration | ALEX | Except Environmental Impact Statements(LSM) |
| C 46. | Economic Development Administration | ALEX | |
| C 46. | Area Redevelopment Administration | ALEX | |
| C 47. | Travel and Tourism Administration | ALEX | |
| C 51. | National Technical Information Service | LSM | |
| C 55. | Environmental Data Service | LSM | |
| C 55. | National Oceanic and Atmospheric Administration | LSM | |
| C 55.100: | National Weather Service | LSM | |
| C 55.190: | National Meteorological Center | LSM | |
| C 55.200: | National Environmental Satellite, Data, and Information Service | LSM | |
| C 55.280: | National Climatic Data Center | LSM | |
| C 55.290: | National Oceanographic Data Center | LSM | |
| C 55.300: | National Marine Fisheries Service | LSM | |
| C 55.400: | National Ocean Service | LSM | |
| C 55.600: | Environmental Research Laboratories | LSM | |
| C 55.600: | National Earthquake Information Center | LSM | |
| C 55.700: | Oceanic and Atmospheric Research Office | LSM | |
| C 57. | Domestic Commerce Bureau | ALEX | |
| C 57. | Resources & Trade Assistance Bureau | ALEX | |
| C 57. | Export Development Bureau | ALEX | |
| C 57. | Industry & Trade Administration | ALEX | |
| C 57. | International Commerce Bureau | ALEX | |
| C 57. | East-West Trade Bureau | ALEX | |
| C 58. | Fire Administration | LSM | |
| C 59. | Economic Analysis Bureau | ALEX | |
| C 60. | National Telecommunications and Information Administration | LSM | |
| C 61. | International Trade Administration | ALEX | |
| C 62. | Industrial Economics Bureau | ALEX | |
| C 63. | Export Administration Bureau | ALEX | |
| CAB | Civil Aeronautics Board | ALEX | |
| CC | Federal Communications Commission | ALEX | |
| CR | Civil Rights Commission | ALEX | |
| CS | Civil Service Commission | ALEX | |
| CSA | Community Services Administration | ALEX | |
| CZ | Panama Canal Company and Canal Zone Government | ALEX | |
| D 1. | Defense Department | SPLIT | (ALEX/LSM) |
| D 2. | American Forces Information Service | ALEX | |
| D 5. | Joint Chiefs of Staff | ALEX | |
| D 5.100: | Defense Information Systems Agency | ALEX | |
| D 5.200: | Defense Intelligence Agency | ALEX | |
| D 5.300 | Defense Mapping Agency | LSM | |
| D 5.300: | National Imagery and Mapping Agency | LSM | |
| D 5.400: | National Defense University | ALEX | |
| D 7. | Defense Supply Management Agency | LSM | |
| D 7. | Defense Logistics Agency | LSM | |
| D 7. | Supply and Logistics | LSM | |
| D 10. | Defense Technical Information Center | LSM | |
| D 12. | National Guard Bureau | ALEX | |
| D 14 | Defense Civil Preparedness Agency | LSM | |
| D 15. | Defense Nuclear Agency | LSM | |
| D 15. | Defense Special Weapons | LSM | |
| D 101. | Army Department | SPLIT | (ALEX/LSM) |
| D 102. | Adjutant General's Office (Army) | ALEX | |
| D 103. | Engineers Corps (Army) | LSM | |
| D 104. | Army Medical Service | LSM | |
| D 104. | Army Medical Department | LSM | |
| D 105. | Publications Relating to Ordnance (Army) | LSM | |
| D 106. | Quartermaster General of the Army | ALEX | |
| D 108. | Judge Advocate General's Office (Army) | ALEX | |
| D 109. | Military Academy, West Point | ALEX | |
| D 110. | Army Command and General Staff College | ALEX | |
| D 111. | Army Electronics Research and Development Command | LSM | |
| D 111. | Signal Corps | LSM | |
| D 111. | Publications Relating to Communications (Army) | LSM | |
| D 114. | Historical Division | ALEX | |
| D 114. | Military History Center | ALEX | |
| D 116. | Chemical Corps | LSM | |
| D 117. | Army Air Mobility Research and Development Command | LSM | |
| D 120. | Provost Marshall General (Army) | ALEX | |
| D 201. | Navy Department | SPLIT | (ALEX/LSM) |
| D 202. | Naval Air Systems Command | LSM | |
| D 202. | Aeronautics Bureau | LSM | |
| D 203. | Naval Oceanographic Office | LSM | |
| D 203. | Hydrographic Office (Navy) | LSM | |
| D 204. | Civilian Personnel Office | ALEX | |
| D 205. | Judge Advocate General (Navy) | ALEX | |
| D 206. | Medicine and Surgery Bureau (Navy) | LSM | |
| D 207. | Naval Operations Office | ALEX | |
| D 207.200: | Naval Education and Training Command | ALEX | Except technical manuals(LSM) |
| D 207.300: | Chief of Naval Reserve | ALEX | |
| D 208. | Naval Personnel Bureau | ALEX | |
| D 208. | Naval Military Personnel Command | ALEX | Except technical manuals(LSM) |
| D 208.100: | Naval Academy | ALEX | |
| D 208.200: | Naval War College, Newport | ALEX | |
| D 209. | Yards and Docks Bureau | LSM | |
| D 209. | Naval Facilities Engineering Command | LSM | |
| D 210. | Naval Research Office | LSM | |
| D 211. | Ships Bureau | LSM | |
| D 211. | Naval Sea Systems Command | LSM | |
| D 212. | Supplies and Accounts Bureau | LSM | |
| D 212. | Naval Supply Systems Command | LSM | |
| D 213. | Naval Observatory | LSM | |
| D 214. | Marine Corps | ALEX | Except technical manuals(LSM) |
| D 215. | Ordnance Bureau | LSM | |
| D 215. | Naval Ordnance Systems Command | LSM | |
| D 216. | Military Sealift Command | LSM | |
| D 218. | Naval Meteorology and Oceanography Command | LSM | |
| D 218. | Naval Oceanography Command | LSM | |
| D 219. | Naval Electronics Systems Command | LSM | |
| D 220. | Naval Weather Service Command | LSM | |
| D 220 | Naval Technical Training Command | LSM | |
| D 221. | Naval Historical Center | ALEX | |
| D 301. | Air Force Department | SPLIT | (ALEX/LSM) |
| D 302. | Judge Advocate General of Air Force | ALEX | |
| D 303. | Administrative Services (Air Force) | ALEX | |
| D 304. | Air Force Office of Medical Support | LSM | |
| D 305. | Air Force Academy | ALEX | |
| E 1. | Energy Department | SPLIT | (ALEX/LSM) |
| E 2. | Federal Energy Regulatory Commission | ALEX | Except environmental impact statements and technical manuals(LSM) |
| E 3. | Energy Information Administration | ALEX | Except technical reports(LSM) |
| E 4. | Economic Regulatory Administration | ALEX | |
| E 5. | Bonneville Power Administration | LSM | |
| E 6. | Western Area Power Administration | LSM | |
| E 7. | Alaska Power Administration | LSM | |
| E 8. | Southeastern Power Administration | LSM | |
| ED 1. | Education Department | ALEX | |
| ED 1.100: | National Center for Educational Statistics | ALEX | |
| ED 1.200: | Special Education and Rehabilitative Services Office | ALEX | |
| ED 1.300: | Educational Research and Improvement Office | ALEX | |
| ED 1.400: | Elementary and Secondary Education Office | ALEX | |
| ED 1.500: | Presidential Scholars Commission | ALEX | |
| EP 1. | Environmental Protection Agency | LSM | Except LandView EP 1.104/4: (ALEX-SCC) |
| EP 2. | Water Office | LSM | |
| EP 2. | Water Quality Office | LSM | |
| EP 2. | Water Programs Operations Office | LSM | |
| EP 2. | Water Programs Office | LSM | |
| EP 3. | Solid Waste Management Office | LSM | |
| EP 4. | Programs Office | LSM | |
| EP 4. | Air and Radiation | LSM | |
| EP 4. | Air Quality Planning and Standards Office | LSM | |
| EP 5. | Prevention, Pesticides and Toxic Substances Office | LSM | |
| EP 6. | Radiation Office | LSM | |
| EP 6. | Radiation & Indoor Air | LSM | |
| EP 6. | Radiation Programs Office | LSM | |
| EP 7. | Technology Transfer | LSM | |
| EP 8. | Wetlands, Oceans & Watersheds Office | LSM | |
| EP 8. | Water Regulations and Standards Office | LSM | |
| EP 9. | Chemical Emergency Preparedness & Prevention Office | LSM | |
| FA | Fine Arts Commission | ALEX | |
| FAA 1. | Federal Aviation Agency | LSM | |
| FAA 2. | Systems Research and Development Service | LSM | |
| FAA 2. | Research and Development Bureau | LSM | |
| FAA 2. | Aviation Research and Development Service | LSM | |
| FAA 3. | Air Traffic Service, Federal Aviation Service | LSM | |
| FAA 3. | Air Traffic Management Bureau | LSM | |
| FAA 4. | Facilities Bureau | LSM | |
| FAA 4. | Facilities and Materials Bureau | LSM | |
| FAA 5. | Flight Standards Bureau | LSM | |
| FAA 6. | National Capital Airports Bureau | LSM | |
| FAA 7. | Aviation Medical Service | LSM | |
| FAA 8. | Airports Service | LSM | |
| FCA | Farm Credit Administration | LSM | |
| FE | Federal Energy Administration | ALEX | |
| FEM 1. | Federal Emergency Management Agency | SPLIT | (ALEX/LSM) |
| FEM 1.100: | Fire Administration | LSM | |
| FEM 1.200: | Federal Insurance Administration | ALEX | |
| FHF | Federal Housing Financing Board | ALEX | |
| FHL | Federal Home Loan Bank Board | ALEX | |
| FM | Federal Mediation and Conciliation Service | ALEX | |
| FMC | Federal Maritime Commission | ALEX | |
| FP | Federal Power Commission | ALEX | |
| FR | Federal Reserve System Board of Governors | ALEX | |
| FS | Children's Bureau | ALEX | |
| FT | Federal Trade Commission | ALEX | |
| FTZ | Foreign-Trade Zones Board | ALEX | |
| GA | General Accounting Office | ALEX | |
| GP 1. | Government Printing Office | ALEX | |
| GP 3. | Superintendent of Documents | ALEX | |
| GS 1. | General Services Administration | SPLIT | (ALEX/LSM) |
| GS 2. | Federal Supply Service | LSM | |
| GS 4 | National Archives and Records Service | ALEX | |
| GS 4 | Federal Register Office | ALEX | |
| GS 6. | Public Buildings Service | ALEX | |
| GS 8. | Transportation and Communication Service | ALEX | |
| GS 11. | Consumer Information Center | ALEX | |
| GS 12. | Information Resources Management Service | LSM | |
| HE 1. | Health and Human Services Department | SPLIT | (ALEX/LSM) |
| HE 1.500 | Consumer Affairs Office | ALEX | |
| HE 1.1000 | Aging Administration | ALEX | |
| HE 3. | Social Security Administration | ALEX | |
| HE 17 | Social and Rehabilitation Service | ALEX | |
| HE 17.600 | National Center for Social Statistics | ALEX | |
| HE 19. | Education Office | ALEX | |
| HE 20. | Public Health Service | LSM | |
| HE 20.100: | President's Council on Physical Fitness and Sports | LSM | |
| HE 20.200: | National Center for Health Care Technology | LSM | |
| HE 20.300: | Indian Health Service | LSM | |
| HE 20.400: | Substance Abuse and Mental Health Services Administration | LSM | |
| HE 20.500: | Toxic Substances and Disease Registry Agency | LSM | |
| HE 20.3000: | National Institutes of Health | LSM | |
| HE 20.3150: | National Cancer Institute | LSM | |
| HE 20.3200: | National Heart, Lung, and Blood Institute | LSM | |
| HE 20.3250: | National Institute of Allergy and Infectious Diseases | LSM | |
| HE 20.3300: | National Institute of Diabetes and Digestive and Kidney Diseases | LSM | |
| HE 20.3350: | National Institute of Child Health and Human Development | LSM | |
| HE 20.3400: | National Institute of Dental Research | LSM | |
| HE 20.3450: | National Institute of General Medical Sciences | LSM | |
| HE 20.3500: | National Institute of Neurological Disorders and Stroke | LSM | |
| HE 20.3550: | National Institute of Environmental Health Sciences | LSM | |
| HE 20.3600: | National Library of Medicine | LSM | |
| HE 20.3650: | National Institute on Deafness and Other Communication Disorders | LSM | |
| HE 20.3700: | John E. Fogarty Intern'l Cent. for Adv. Study in the Health Sciences | LSM | |
| HE 20.3750: | National Eye Institute | LSM | |
| HE 20.3850: | National Institute on Aging | LSM | |
| HE 20.3900: | National Institute of Arthritis and Musculoskeletal and Skin Diseases | LSM | |
| HE 20.3950: | National Institute on Drug Abuse | LSM | |
| HE 20.4000: | Food and Drug Administration | LSM | |
| HE 20.4400: | Veterinary Medicine Center | LSM | |
| HE 20.4500: | Food Safety and Applied Nutrition Center | LSM | |
| HE 20.4600: | Devices and Radiological Health Center | LSM | |
| HE 20.4700: | Drug Evaluation and Research Center | LSM | |
| HE 20.4800: | Biologics Evaluation and Research Center | LSM | |
| HE 20.5500: | Quality Assurance Bureau | LSM | |
| HE 20.6200: | National Center for Health Statistics | LSM | |
| HE 20.6500: | Health Care Policy and Research Agency | LSM | |
| HE 20.7000: | Disease Control and Prevention Centers (CDC) | LSM | |
| HE 20.7100: | National Institute for Occupational Safety and Health | LSM | |
| HE 20.7200: | Health Education Bureau | LSM | |
| HE 20.7300: | National Center for HIV, STD and TB Prevention | LSM | |
| HE 20.7300: | Prevention Services Center | LSM | |
| HE 20.7500: | Environmental Health and Injury Control Center | LSM | |
| HE 20.7600: | National Center for Chronic Disease Prevention and Health Promotion | LSM | |
| HE 20.7800: | Infectious Diseases Center | LSM | |
| HE 20.7900: | Toxic Substances and Disease Registry Agency | LSM | |
| HE 20.7950: | National Center for Injury Prevention and Control | LSM | |
| HE 20.7960: | National Immunization Program | LSM | |
| HE 20.8000: | Substance Abuse and Mental Health Services Administration | LSM | |
| HE 20.8100: | National Institute of Mental Health | LSM | |
| HE 20.8200: | National Institute on Drug Abuse | LSM | |
| HE 20.8300: | National Institute on Alcohol Abuse and Alcoholism | LSM | |
| HE 20.9000: | Health Resources and Services Administration | LSM | |
| HE 20.9100: | Primary Health Care Bureau | LSM | |
| HE 20.9200: | Maternal and Child Health and Resources Development Bureau | LSM | |
| HE 20.9300: | Health Professions Bureau | LSM | |
| HE 20.9500: | HIV/AIDS Bureau | LSM | |
| HE 22. | Health Care Financing Administration | ALEX | Except International Classification Of Diseases(LSM) |
| HE 22.100: | Medicaid Bureau | ALEX | |
| HE 22.100: | Medicaid and State Operations Center | ALEX | |
| HE 22.200: | Health Standards and Quality Bureau | ALEX | |
| HE 22.200: | Clinical Standards and Quality Office | ALEX | |
| HE 22.400: | Operations Center | ALEX | |
| HE 22.400: | Program Operations Bureau | ALEX | |
| HE 22.500: | Data Management and Strategy Bureau | ALEX | |
| HE 22.500: | Strategic Planning Office | ALEX | |
| HE 22.600: | Information Services Office | ALEX | |
| HE 23.100: | President's Committee on Mental Retardation | ALEX | |
| HE 23.1000: | Children, Youth and Families Administration | ALEX | |
| HE 23.1100: | Head Start Bureau | ALEX | |
| HE 23.1200: | Children's Bureau | ALEX | |
| HE 23.1300: | Family and Youth Services Bureau | ALEX | |
| HE 23.1400: | Child Care Bureau | ALEX | |
| HE 23.2000: | Public Services Administration | ALEX | |
| HE 23.3000: | Aging Administration | ALEX | |
| HE 23.5000: | Native Americans Administration | ALEX | |
| HE 23.6000: | Developmental Disabilities Administration | ALEX | |
| HE 24. | Child Support Enforcement Office | ALEX | |
| HE 25. | Children and Families Administration | ALEX | |
| HH 1. | Housing and Urban Development Department | ALEX | |
| HH 1. | Housing and Home Finance Agency | ALEX | |
| HH 2. | Federal Housing Administration | ALEX | |
| HH 11. | New Communities Administration | ALEX | |
| HH 13. | Multi-Family Housing Office | ALEX | |
| I 1. | Interior Department | SPLIT | (ALEX/LSM) |
| I 19. | Geological Survey | LSM | |
| I 19.200: | Biological Resources Division | LSM | |
| I 20. | Indian Affairs Bureau | ALEX | Except scientific reports(LSM) |
| I 22. | Department Library | ALEX | |
| I 22. | Natural Resources Library | ALEX | |
| I 27. | Reclamation Bureau | LSM | |
| I 28. | Mines Bureau | LSM | |
| I 29. | National Park Service | ALEX | Except scientific studies(LSM) |
| I 33. | Geographic Names Board | LSM | |
| I 49. | Fish and Wildlife Service | LSM | |
| I 53. | Land Management Bureau | LSM | |
| I 66. | Outdoor Recreation Bureau | ALEX | |
| I 70. | Heritage Conservation and Recreation Service | ALEX | |
| I 71. | Surface Mining Reclamation and Enforcement Office | LSM | |
| I 72. | Minerals Management Service | LSM | |
| I 73. | National Biological Service | LSM | |
| IA | Information Agency (USIA) | ALEX | |
| IC | Interstate Commerce Commission | ALEX | |
| ITC | International Trade Commission | ALEX | |
| J 1. | Justice Department | ALEX | |
| J 1.14 | Federal Bureau of Investigation | ALEX | |
| J 16. | Prisons Bureau | ALEX | |
| J 16.100: | National Institute of Corrections | ALEX | |
| J 21. | Immigration and Naturalization Service | ALEX | |
| J 22. | Alien Property Office | ALEX | |
| J 23. | Community Relations Service | ALEX | |
| J 24. | Narcotics and Dangerous Drug Bureau | ALEX | |
| J 24. | Drug Enforcement Administration | ALEX | |
| J 25. | Marshals Service | ALEX | |
| J 26. | Justice Assistance Bureau | ALEX | |
| J 27. | Parole Commission | ALEX | |
| J 28. | National Institute of Justice | ALEX | |
| J 29. | Justice Statistics Bureau | ALEX | |
| J 31. | Executive Office for the United States Attorneys | ALEX | |
| J 32. | Juvenile Justice and Delinquency Prevention Office | ALEX | |
| J 33. | Attorney Personnel Management Office | ALEX | |
| J 34. | Victims of Crime Office | ALEX | |
| J 35. | Violence Against Women Office | ALEX | |
| JU 1. | Judiciary | ALEX | |
| JU 2. | Circuit Courts of Appeals | ALEX | |
| JU 3. | Court of Federal Claims | ALEX | |
| JU 6. | Supreme Court | ALEX | |
| JU 7. | Court of Appeals for the Federal Circuit | ALEX | |
| JU 9. | Court of International Trade | ALEX | |
| JU 10. | Administrative Office of U.S. Courts | ALEX | |
| JU 11. | Tax Court | ALEX | |
| JU 12. | Emergency Court of Appeals | ALEX | |
| JU 13. | Federal Judicial Center | ALEX | |
| JU 14. | Bankruptcy Court | ALEX | |
| JU 15. | Court of Veterans Appeals | ALEX | |
| L 1. | Labor Department | ALEX | |
| L 2. | Labor Statistics Bureau | ALEX | |
| L 7. | Employment Security Bureau | ALEX | |
| L 16. | Labor Standards Bureau | ALEX | |
| L 21. | Solicitor of Labor Department | ALEX | |
| L 22. | Wage and Hour and Public Contract Division | ALEX | |
| L 25. | Veterans' Reemployment Rights Office | ALEX | |
| L 26. | Employees' Compensation Bureau | ALEX | |
| L 27. | Defense Manpower Administration | ALEX | |
| L 28. | Employees Compensation Appeals Board | ALEX | |
| L 29. | International Labor Affairs Bureau | ALEX | |
| L 30. | Federal Safety Council | ALEX | |
| L 31. | Labor Management Reports Bureau | ALEX | |
| L 32. | Work Programs Bureau | ALEX | |
| L 34. | Employment Service | ALEX | |
| L 35. | Occupational Safety and Health Administration | ALEX | |
| L 36. | Employment Standards Administration | ALEX | |
| L 36. | Federal Employees' Compensation Office | ALEX | |
| L 36.100: | Women's Bureau | ALEX | |
| L 36.200: | Wage and Hour Division | ALEX | |
| L 36.400: | Worker's Compensation Programs Office | ALEX | |
| L 37. | Employment and Training Administration | ALEX | |
| L 37.100: | Apprenticeship and Training Bureau | ALEX | |
| L 37.200: | Unemployment Insurance Service | ALEX | |
| L 37.300: | Employment Service | ALEX | |
| L 38. | Mine Safety and Health Administration | LSM | |
| L 39. | Veteran's Employment and Training Service | ALEX | |
| L 40. | Pension and Welfare Benefits Administration | ALEX | |
| LC 1. | Library of Congress | ALEX | |
| LC 2. | General Reference and Bibliography Division | ALEX | |
| LC 2. | Humanities and Social Sciences Division | ALEX | |
| LC 3. | Copyright Office | ALEX | |
| LC 4. | Manuscript Division | ALEX | |
| LC 5. | Geography and Map Division | ALEX | |
| LC 6. | Serial and Government Publications Division Library Services | ALEX | |
| LC 9. | Cataloging Directorate | ALEX | |
| LC 12. | Music Division | ALEX | |
| LC 14. | Legislative Reference Service | ALEX | |
| LC 14. | Congressional Research Service | ALEX | |
| LC 17. | Asian Division | ALEX | |
| LC 19. | National Library Service for the Blind and Physically Handicapped | ALEX | |
| LC 23. | Rare Book and Special Collections Division | ALEX | |
| LC 24. | Hispanic Division | ALEX | |
| LC 25. | Prints and Photographs Division | ALEX | |
| LC 26. | History and Literature Cataloging Division | ALEX | |
| LC 30. | Library Services (Includes Cataloging Distribution Service Division) | ALEX | |
| LC 30. | Processing Department | ALEX | |
| LC 33. | Science and Technology Division | LSM | |
| LC 34. | Collections Management Division | ALEX | |
| LC 35. | European Division | ALEX | |
| LC 39. | American Folklife Center | ALEX | |
| LC 40. | Motion Picture, Broadcasting and Recorded Sound Division | ALEX | |
| LC 41. | African and Middle Eastern Division | ALEX | |
| LC 42. | Law Library | ALEX | |
| LR | National Labor Relations Board | ALEX | |
| MS 1. | Merit Systems Protection Board | ALEX | |
| MS 2. | Special Counsel Office | ALEX | |
| NAS | National Aeronautics and Space Administration | LSM | |
| NC | National Capital Park and Planning Commission | ALEX | |
| NC | National Capital Planning Commission | ALEX | |
| NCU | National Credit Union Administration | ALEX | |
| NF 1. | National Foundation on the Arts and the Humanities | ALEX | |
| NF 2. | National Endowment for the Arts | ALEX | |
| NF 3. | National Endowment for the Humanities | ALEX | |
| NF 4. | Museum and Library Services Institute | ALEX | |
| NF 4. | Museum Services Institute | ALEX | |
| NMB | National Mediation Board | ALEX | |
| NS 1. | National Science Foundation | LSM | |
| NS 2. | Science Information Office | LSM | |
| NS 2. | Science Information Service Office | LSM | |
| OP | Overseas Private Investment Corporation | ALEX | |
| P 1. | Post Office Department | ALEX | |
| P 1. | Postal Service (USPS) | ALEX | |
| P 4. | Finance and Administration Bureau | ALEX | |
| P 10. | Transportation and International Services Bureau | ALEX | |
| P 19. | Postal Savings System | ALEX | |
| P 24. | Post Office Operations Bureau | ALEX | |
| PE 1. | Peace Corps | ALEX | |
| PM | Personnel Management Office | ALEX | |
| PR | President of the United States | ALEX | Except PR 41.8(SPLIT - ALEX/LSM) |
| PREX 1. | President (Executive Office) | ALEX | Except PREX 1.15 & PREX 1.18(LSM) |
| PREX 2. | Management and Budget Office | ALEX | |
| PREX 3. | Central Intelligence Agency | ALEX | |
| PREX 3. | National Security Council | ALEX | |
| PREX 6. | Economic Advisors Council | ALEX | |
| PREX 7. | Foreign Broadcast Information Service | ALEX | |
| PREX 8. | Federal Coordinating Council for Science, Engineering and Tech. | LSM | |
| PREX 9. | Trade Representative | ALEX | |
| PREX 14. | Environmental Quality Council | LSM | |
| PREX 15. | Domestic Policy Council | ALEX | |
| PREX 18. | Telecommunications Policy Office | ALEX | |
| PREX 23. | Science and Technology Policy Office | ALEX | Except PREX 23.2:SCI 2/(LSM) |
| PREX 24. | Drug Abuse Policy Office | ALEX | |
| PREX 25. | Regulatory Information Service Center | ALEX | |
| PREX 26. | National Drug Control Policy Office | ALEX | |
| PRVP | Vice President of the United States | ALEX | |
| PRVP 42. | Vice President of the United States | ALEX | Except PRVP 42.15:(LSM) |
| RR | Railroad Retirement Board | ALEX | |
| S | State Department | ALEX | |
| S 17. | International Cooperation Administration | ALEX | |
| S 18. | International Development Agency | ALEX | |
| S 20. | International Information Programs | ALEX | |
| SBA | Small Business Administration | ALEX | |
| SE | Securities and Exchange Commission | ALEX | |
| SI 1. | Smithsonian Institution | SPLIT | (ALEX/LSM) |
| SI 3. | National Museum of American Hist./National Museum of Natural Hist. | SPLIT | (ALEX/LSM) |
| SI 3. | National Museum | SPLIT | (ALEX/LSM) |
| SI 4. | American Historical Association | ALEX | |
| SI 6. | National Museum of American Art | SPLIT | (ALEX/ART) |
| SI 7. | Freer Gallery of Art | ALEX | |
| SI 8. | National Gallery of Art | ART | |
| SI 9. | National Air Museum | LSM | |
| SI 9. | National Air and Space Museum | LSM | |
| SI 11. | National Portrait Gallery | ART | |
| SI 13. | Hirshhorn Museum and Sculpture Garden | ART | |
| SI 14. | National Museum of African Art | ART | |
| SSA 1. | Social Security Administration | ALEX | |
| T 1. | Accounts Bureau | ALEX | |
| T 1. | Treasury Department | ALEX | |
| T 12. | Comptroller of Currency | ALEX | |
| T 17. | Customs Service | ALEX | |
| T 18. | Engraving and Printing Bureau | ALEX | |
| T 22. | Internal Revenue Service | ALEX | |
| T 28. | Mint Bureau | ALEX | |
| T 34. | Secret Service | ALEX | |
| T 63. | Fiscal Service | ALEX | |
| T 63.100: | Financial Management Service | ALEX | |
| T 63.200: | Public Debt Bureau | ALEX | |
| T 63.300: | Treasurer of the United States | ALEX | |
| T 64. | Tax Research Division | ALEX | |
| T 66. | Savings Bonds Marketing Office | ALEX | |
| T 66. | Savings Bond Division | ALEX | |
| T 70. | Alcohol, Tobacco and Firearms Bureau | ALEX | |
| T 71. | Thrift Supervision Office | ALEX | |
| TC | International Trade Commission | ALEX | |
| TC | Tariff Commission | ALEX | |
| TD 1. | Transportation Department | LSM | Except Tiger/Line TD 1.56/5(ALEX-SCC) |
| TD 1.100: | National Transportation Safety Board | LSM | |
| TD 2. | Federal Highway Administration | LSM | |
| TD 2. | Public Roads Bureau | LSM | |
| TD 2. | Federal Highway Safety Bureau | LSM | |
| TD 2.300: | Motor Carrier Safety Bureau | LSM | |
| TD 3. | Federal Railroad Administration | LSM | |
| TD 3.100: | Safety Office | LSM | |
| TD 4. | Airports Service, FAA | LSM | |
| TD 4. | Federal Aviation Administration | LSM | |
| TD 4.100: | Airport Programs Office | LSM | |
| TD 4.200: | Aviation Medicine Office | LSM | |
| TD 4.300: | Air Traffic Operations Service | LSM | |
| TD 4.400: | Flights Standard Service | LSM | |
| TD 4.500: | Systems Research and Development Service | LSM | |
| TD 4.800: | Civil Aviation Security Service | LSM | |
| TD 4.900: | Aircraft Certification Service | LSM | |
| TD 5. | Coast Guard | LSM | |
| TD 6. | St. Lawrence Seaway Development Corporation | LSM | |
| TD 7. | Federal Transit Administration | LSM | |
| TD 8. | National Highway Traffic Safety Administration | LSM | |
| TD 9. | Hazardous Materials Transportation Office | LSM | |
| TD 10. | Research and Special Programs Administration | LSM | |
| TD 11. | Maritime Administration | ALEX | |
| TD 12. | Transportation Statistics Bureau | ALEX | |
| TD 13 | Surface Transportation Board | LSM | |
| TDA | Trade and Development Agency | ALEX | |
| VA | Veterans Affairs Department | LSM | |
| X | Congress | ALEX | |
| Y 1. | Congress | ALEX | |
| Y 1.2: | House of Representatives | ALEX | |
| Y 1.3: | Senate | ALEX | |
| Y 3.AC 7: | National Commission on AIDS | SPLIT | (ALEX/LSM) |
| Y 3.AD 6: | Administrative Conference of the United States | ALEX | |
| Y 3.AD 9/8: | Intergovernmental Relations Advisory Commission | ALEX | |
| Y 3.AD 9/12: | Public Diplomacy Advisory Commission | ALEX | |
| Y 3.AF 8: | African Development Foundation | ALEX | |
| Y 3.AM 3: | American Battle Monuments Commission | ALEX | |
| Y 3.AM 3/2: | National Comm. on Amer.Indian, Alaska Native & Native Hawaiian Housing | ALEX | |
| Y 3.AP 4/2: | Appalachian Regional Commission | ALEX | |
| Y 3.AT 7: | Atomic Energy Commission | LSM | |
| Y 3.B 27: | Architectural and Transportation Barriers Compliance Board | ALEX | |
| Y 3.B 49: | National Advisory and Coordinating Council on Bilingual Education | ALEX | |
| Y 3.B 78: | International Broadcasting Board | ALEX | |
| Y 3.C 42/2: | Chemical Safety & Hazard Investigation Board | LSM | |
| Y 3.C 73/5: | Commodity Futures Trading Commission | ALEX | |
| Y 3.C 73/6: | Competitiveness Policy Council | ALEX | |
| Y 3.C 76/3: | Consumer Product Safety Commission | ALEX | |
| Y 3.C 76/4: | Records of Congress Advisory Committee | ALEX | |
| Y 3.D 36/2: | Defense Base Closure and Realignment Commission | ALEX | |
| Y 3.D 36/3: | Defense Nuclear Facilities Safety Board | LSM | |
| Y 3.D 63/3: | National Council on Disability | ALEX | |
| Y 3.ED 8/11: | National Comm. on Responsibilities for Financing Postsecondary Educ. | ALEX | |
| Y 3.EL 2/3: | Federal Election Commission | ALEX | |
| Y 3.EM 7/3: | National Commission for Employment Policy | ALEX | |
| Y 3.EN 2: | Enrichment Corporation | LSM | |
| Y 3.EQ 2: | Equal Employment Opportunity Commission | ALEX | |
| Y 3.ET 3: | Government Ethics Office | ALEX | |
| Y 3.EX 7/3: | Export-Import Bank of United States | ALEX | |
| Y 3.F 22/2: | Farm Credit System Insurance Corporation | ALEX | |
| Y 3.F 31/8: | Federal Deposit Insurance Corporation | ALEX | |
| Y 3.F 31/16: | Federal Council for Science and Technology | ALEX | |
| Y 3.F 31/20: | Federal Executive Board | ALEX | |
| Y 3.F 31/21- | Federal Labor Relations Authority | ALEX | |
| Y 3.F 31/25: | Federal Retirement Thrift Investment Board | ALEX | |
| Y 3.H 62: | Historic Preservation Advisory Council | ALEX | |
| Y 3.H 62/4: | White House Historical Association | ALEX | |
| Y 3.H 74: | Holocaust Memorial Council | ALEX | |
| Y 3.H 75: | Interagency Council on the Homeless | ALEX | |
| Y 3.IN 2/10: | National Advisory Council on Indian Education | ALEX | |
| Y 3.IN 8/25: | Inter-American Foundation | ALEX | |
| Y 3.IN 8/31: | Interagency Task Force an Acid Precipitation | LSM | |
| Y 3.J 27: | Japan-United States Friendship Commission | ALEX | |
| Y 3.J 66: | Joint Publications Research Service | ALEX | |
| Y 3.L 61: | National Commission on Libraries and Information Science | ALEX | |
| Y 3.L 71: | National Institute for Literacy | ALEX | |
| Y 3.M 33/3: | Marine Mammal Commission | LSM | |
| Y 3.M 46/2: | Graduate Medical Education Council | ALEX | |
| Y 3.M 53/2: | Merchant Marine and Defense Commission | ALEX | |
| Y 3.M 58: | Migratory Bird Conservation Commission | LSM | |
| Y 3.M 66: | Federal Mine Safety and Health Review Commission | LSM | |
| Y 3.N 16: | National Narcotics Intelligence Consumers Committee | ALEX | |
| Y 3.N 21/16: | National Advisory Council on International Monetary and Financial Policies | ALEX | |
| Y 3.N 21/29: | National Senior Service Corps | ALEX | |
| Y 3.N 21/29: | National and Community Service Corporation | ALEX | |
| Y 3.N 21/29: | Volunteers in Service to America (VISTA) | ALEX | |
| Y 3.N 88: | Nuclear Regulatory Commission | LSM | |
| Y 3.N 88/2: | Nuclear Waste Technical Review Board | LSM | |
| Y 3.N 95: | National Nutrition Monitoring Advisory Council | ALEX | |
| Y 3.OC 1: | Occupational Safety and Health Review Commission | ALEX | |
| Y 3.P 19/2: | Panama Canal Commission | ALEX | |
| Y 3.P 29: | Prospective Payment Assessment Commission | ALEX | |
| Y 3.P 31: | Peace Institute | ALEX | |
| Y 3.P 38: | Pennsylvania Avenue Development Corporation | ALEX | |
| Y 3.P 38/2: | Pension Benefit Guaranty Corporation | ALEX | |
| Y 3.P 56: | Physician Payment Review Commission | ALEX | |
| Y 3.P 84/4: | Postal Rate Commission | ALEX | |
| Y 3.P 97: | Committee for Purchase from the Blind and Other Severely Handicapped | ALEX | |
| Y 3.R 13/4: | Purchase from the Blind and Other Severely Handicapped Committee | ALEX | |
| Y 3.R 67: | Franklin Delano Roosevelt Memorial | ALEX | |
| Y 3.SE 4: | Selective Service System | ALEX | |
| Y 3.SE 5: | Sentencing Commission | ALEX | |
| Y 3.SE 5/3: | National Advisory Committee on Semiconductors | ALEX | |
| Y 3.T 22/2: | Technology Assessment Office (OTA) | ALEX | |
| Y 3.T 25: | Tennessee Valley Authority | LSM | |
| Y 3.W 52/2: | Western Water Policy Review Advisory Commission | LSM | |
| Y 3.2: | Commissions, Committees, and Boards | SPLIT | (ALEX/LSM) |
| Y 4.AG 4: | Aging Special Committee (Senate) | ALEX | |
| Y 4.AG 8/1: | Agriculture Committee (House) | ALEX | |
| Y 4.AG 8/3: | Agriculture, Nutrition, and Forestry Committee(Senate) | ALEX | |
| Y 4.AP 6/1: | Appropriations Committee (House) | ALEX | |
| Y 4.AP 6/2: | Appropriations Committee (Senate) | ALEX | |
| Y 4.AR 5/3: | Armed Services Committee (Senate) | ALEX | |
| Y 4.B 22/1: | Banking and Financial Services Committee (House) | ALEX | |
| Y 4.B 22/3: | Banking, Housing, and Urban Affairs Committee (Senate) | ALEX | |
| Y 4.B 85/2: | Budget Committee (Senate) | ALEX | |
| Y 4.B 85/3: | Budget Committee (House) | ALEX | |
| Y 4.C 73/7: | Commerce, Science and Transportation Committee (Senate) | ALEX | |
| Y 4.C 73/8: | Commerce Committee (House) | ALEX | |
| Y 4.EC 7: | Economic Joint Committee | ALEX | |
| Y 4.ED 8/1: | Education and the Workforce Committee (House) | ALEX | |
| Y 4.ED 8/1: | Economic and Educational Opportunities Committee (House) | ALEX | |
| Y 4.EN 2: | Energy and Natural Resources Committee (Senate) | ALEX | |
| Y 4.ET 3/4: | Ethics Select Committee (Senate) | ALEX | |
| Y 4.F 49: | Finance Committee (Senate) | ALEX | |
| Y 4.F 76/2: | Foreign Relations Committee (Senate) | ALEX | |
| Y 4.G 74/7: | Government Reform and Oversight Committee (House) | ALEX | |
| Y 4.G 74/9: | Governmental Affairs Committee (Senate) | ALEX | |
| Y 4.H 81/3: | House Oversight Committee (House) | ALEX | |
| Y 4.IN 2/11: | Indian Affairs Committee (Senate) | ALEX | |
| Y 4.IN 8/14: | Interior & Insular Affairs Committee (House) | ALEX | |
| Y 4.IN 8/16 | International Relations Committee (House) | ALEX | |
| Y 4.IN 8/18 | Intelligence Select Committee (House) | ALEX | |
| Y 4.IN 8/19 | Intelligence Select Committee (Senate) | ALEX | |
| Y 4.J 89/1 | Judiciary Committee (House) | ALEX | |
| Y 4.J 89/2 | Judiciary Committee (Senate) | ALEX | |
| Y 4.L 11/4: | Labor and Human Resources Committee (Senate) | ALEX | |
| Y 4.L 61/2: | Library Joint Committee | ALEX | |
| Y 4.P 93/1: | Printing Joint Committee | ALEX | |
| Y 4.P 96/10: | Environment and Public Works Committee (Senate) | ALEX | |
| Y 4.R 31/3 | Resources Committee (House) | ALEX | |
| Y 4.R 86/1 | Rules Committee (House) | ALEX | |
| Y 4.R 86/2 | Rules and Administration Committee (Senate) | ALEX | |
| Y 4.SCI 2: | Science Committee (House) | ALEX | |
| Y 4.SE 2 | Security and Cooperation in Europe Commission | ALEX | |
| Y 4.SE 2/1: | National Security Committee (House) | ALEX | |
| Y 4.SM 1: | Small Business Committee (House) | ALEX | |
| Y 4.SM 1/2: | Small Business Committee (Senate) | ALEX | |
| Y 4.ST 2/3: | Standards of Official Conduct Committee (House) | ALEX | |
| Y 4.T 19/4: | Taxation Joint Committee | ALEX | |
| Y 4.T 68/2: | Transportation and Infrastructure Committee (House) | ALEX | |
| Y 4.V 64/3 | Veterans' Affairs Committee (House) | ALEX | |
| Y 4.V 64/4 | Veterans' Affairs Committee (Senate) | ALEX | |
| Y 4.W 36: | Ways and Means Committee (House) | ALEX | |
| Y 4.2: | Select and Special Committees (as appointed)[House] | ALEX | |
| Y 4.3: | Select and Special Committees (as appointed)[Senate] | ALEX | |
| Y 7. | Congress | ALEX | |
| Y 10. | Congressional Budget Office | ALEX |
Stephanie Bartz - 3/4/99, revised 5/17/00