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How to Read Call Numbers

Where are SuDoc Call Numbers Located?

SuDoc call numbers appear in many different locations in the WSU Pullman campus Libraries. Many of them are on the 3rd floor of Holland and Terrell Library, as well in the Holland Microforms room in the form of microfiche and microfilm.

They also appear on the 3rd floor of the Owen Science and Engineering Library. Many maps issued by the Army or other agencies have government document call numbers.

How to Read SuDoc Call Numbers

SuDoc stands for "Superintendant of Documents." This type of call number is applied to federal (government-produced) documents. Instead of being arranged by subject (like LC and Dewey call numbers), SuDoc numbers arrange documents by the agencies that produce them. For example, A stands for Agriculture, while T stands for Treasury.

Here is an example of a SuDoc call number:

Breakdown of a SuDoc call number

The SuDoc Call number C 3. 186/22: 999 is broken up in the following parts:

  • C: Issuing agency (Commerce Department)
  • 3.: Subagency (Census Bureau)
  • 186: Series Title (Current Population Reports)
  • 22: Document Title (Poverty in the U.S.)
  • 999: Year (1999)

For more information and a deeper explanation, see the Northwestern University library page link below.


SuDoc Numbers on the Shelf

Close up of SuDoc call numbers on books on a shelf.

SuDoc Classification

Government Documents are arranged by the producing government agencies. For example, if a SuDoc number begins with an ED, you know that the document is produced by the Department of Education.

A (Agriculture)
AE (Archives)
C (Commerce)
C3 (Census Bureau)
C 13 - C 63 (National Institute of Standards and Technology)
CC (Communications Commission)
CR (Civil Rights)
D (Defense)
E (Energy)
ED (Education)
EP (Environment)
FCA (Farm Credit)
FM (Mediation and Conciliatory Service)
FMC (Maritime)
FR (Federal Reserve)
GA (General Accountability Office)
GP (Government Printing Office)
GS (General Services Admin)
HE (Health and Human Services)
HH (Housing and Urban Development)
HS (Homeland Security)
I (Interior)
J (Justice)
JU (Federal Courts)
L (Labor)
LC (Library of Congress
LR (Labor Relations Board)
MS (Merit System Protection)
NC (National Capital Planning)
NCU (National Credit Union)
NF (National Foundation Arts and Humanities)
NMB (National Mediation Board)
NS (National Science Foundation)
OP (Overseas Private Investment)
P (Postal Service)
PE (Peace Corps)
PM (Personnel Management)
PR (White House)
PREX (Executive Office)
PRVP (Office of VP)
S (State Department)
SBA (Small Business Admin)
SI (Smithsonian)
SSA (Social Securtiy)
T (Treasury)
TD (Transportation)
VA (Veterans Affairs)
XY (Congressional Publications)
Y 3 - Y 10 (Independent Commissions)|

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