Superintendent of Documents System

Department and Agency Symbols Currently in Use
 
 A  Agriculture Department
 AC  Arms Control & Disarmament Agency
 AE  National Archives & Records Administration
 AE 2  Federal Register Office

 B 1  Broadcasting Board of Governors
 B 2  International Broadcasting Bureau

 C  Commerce Department
 C 3  Census Bureau
 C 55  National Oceanic & Atmospheric Administration
 CC  Federal Communications Commission
 CR  Civil Rights Commission

 D  Defense Department
 D 103  Engineers Corps (Army)

 E  Energy Department
 ED  Education Department
 EP  Environmental Protection Agency

 FA  Fine Arts Commission
 FCA  Farm Credit Administration
 FEM  Federal Emergency Management Agency
 FHF  Federal Housing Financing Board
 FM  Federal Mediation & Conciliation Service
 FMC  Federal Maritime Commission
 FR  Federal Reserve System Board of Governors
 FT  Federal Trade Commission
 FZ  Foreign-Trade Zones Board

 GA  General Accountability Office
 GP  Government Printing Office
 GS  General Services Administration

 HE  Health & Human Services Department
 HE 20.400  Substance Abuse & Mental Health Services Administration
 HE 20.3000  National Institutes of Health
 HE 20.6200  National Center for Health Statistics
 HE 20.7000  Centers for Disease Control & Prevention
 HH  Housing & Urban Development Department
 HS  Department of Homeland Security

 I  Interior Department
 I 19  Geological Survey
 I 49  Fish & Wildlife Service
 IC  Interstate Commerce Commission
 ITC  International Trade Commission

 J  Justice Department
 J 1.14  Federal Bureau of Investigation
 JU  Judiciary

 L  Labor Department
 L 2  Bureau of Labor Statistics
 L 35  Occupational Safety & Health Administration
 LC  Library of Congress
 LC 3  Copyright Office
 LR  National Labor Relations Board

 MS  Merit Systems Protection Board

 NAS  National Aeronautics & Space Administration
 NC  National Capital Planning Commission
 NCU  National Credit Union Administration
 NF  National Foundation on the Arts the Humanities
 NMB  National Mediation Board
 NS  National Science Foundation

 OP  Overseas Private Investment Corporation

 P  United States Postal Service
 PE  Peace Corps
 PM  Personnel Management Office
 PR  President of the United States
 PREX  Executive Office of the President
 PREX 3  Central Intelligence Agency
 PRVP  Vice President of the United States

 RR  Railroad Retirement Board

 S  State Department
 SBA  Small Business Administration
 SE  Securities & Exchange Commission
 SI  Smithsonian Institute
 SSA  Social Security Administration

 T  Treasury Department
 T 22  Internal Revenue Service
 T 70  Alcohol, Tobacco & Firearms Bureau
 TD  Transportation Department

 VA  Veterans Affairs Department
 X  Congress: Congressional Record, House and Senate Journals
 Y 1  Congress: House and Senate as a whole
 Y 1.1/3  Senate Documents
 Y 1.1/4  Senate Treaty Documents
 Y 1.1/7  House Documents
 Y 1.1/8  House Reports
 Y 3  Commissions and Boards
 Y 4  Congressional Committees

For an explanation of how the SuDocs System works, see http://www.valpo.edu/library/sudocs.html