Research Guides: U.S. Government: Finding Government Resources

What is a SuDoc Number?

A SuDoc (Superintendent of Documents) number is a classification system that the Government Publishing Office (GPO) uses to organize Federal Government publications. Publications are grouped together by issuing agency and therefore it is important to understand the structure of the Federal Government in order to find Federal publications. Most SuDoc numbers follow the format below.

SuDoc Classification System
Learn more about SuDoc numbers and classifications here.

Exploring Other Libraries

National Archives and Records Administration
The mission of NARA is to serve American democracy by safeguarding and preserving the records of our Government, ensuring that the people can discover, use, and learn from this documentary heritage.
Presidential Library Explorer
Permanent records from presidential administrations held by the National Archives and Records Administration at their respective Presidential Libraries. This visualization presents the holdings of Presidential Libraries in descending order from the library with the largest number of textual records to the smallest.
Center for Research Libraries
Library of Congress

U.S. Government

What is a SuDoc Number?

Exploring Other Libraries

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