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Understanding Government Document Call Numbers

Library call numbers which begin with the prefix "US" indicate a United States federal government document. These documents use a different call number system than the regular book collections at the UB Libraries. The Superintendent of Documents ("SuDocs") Classification System groups federal documents by the government department or agency that produced them. Each department and agency is assigned a unique letter code. The table below contains examples of selected departments and agencies whose documents may be found in the UB Libraries.

Code	Department / Agency
A	Agriculture Department
AE	National Archives and Records Administration
C	Commerce Department
C 3	Census Bureau
D	Defense Department
E	Energy Department
ED	Education Department
EP	Environmental Protection Agency
FR	Federal Reserve Board
FT	Federal Trade Commission
GA	General Accounting Office
GS	General Services Administration
HE	Health and Human Services
HS	Homeland Security
I	Interior Department
I 19	U.S. Geological Survey
J	Justice Department
JU	Judiciary
L	Labor Department
LC	Library of Congress
NAS	National Aeronautic and Space Administration
PR	President of the United States
PrEx	Executive Office of the President
S	State Department
SBA	Small Business Administration
SE	Securities and Exchange Commission
T	Treasury Department
T 22	Internal Revenue Service
TD	Transportation Department
VA	Veterans' Affairs
X	Congress
Y	Congress
Y 4	Congressional Committees/Hearings

The remaining letters and numbers in a SuDocs call number contain additional information which will be necessary to locate the document on the library shelf, including the subordinate office and type of publication. It is important to note the entire SuDocs call number before attempting to locate a federal government document on the shelf in the UB Libraries.

Code

Department / Agency