SuDocs call numbers are assigned by the Government Publishing Office as new publications are produced. Many libraries that participate in the Federal Depository Library Program employ SuDocs to classify their collections.[1]
History
Superintendent of Documents Classification took form around 1891, when Adelaide Hasse was given the task of organizing the government publications held at the Los Angeles Public Library. Rather than organize publications by subject, she instead organized them by provenance, that is, the government agency that issued them.[2] Hasse applied her system to a list of publications of the Department of Agriculture in 1895.[6] Her system was adopted by the office of the Superintendent of Documents in 1895.[7] William Leander Post, head of the Government Printing Office's Public Documents Library, assigned new symbols for government agencies, allowing for the expansion of the system to accommodate all federal agencies.[1][6]
Structure
SuDocs call numbers consist of two main parts: a class stem, and a suffix. The class stem brings together related publications, while the suffix is a unique identifier for a publication. The example below breaks down the part of a SuDocs call number using the example of Cybersecurity: deterrence policy, with the call number LC 14.23:R 47011.
Departments and agencies are assigned letter author symbols. As of 2022, the following letter author symbols are in use:[8]
A Department of Agriculture
AE National Archives and Records Administration
B U.S. Agency for Global Media
C Department of Commerce
CC Federal Communications Commission
CR Commission on Civil Rights
D Department of Defense
E Department of Energy
ED Department of Education
EP Environmental Protection Agency
FA Commission of Fine Arts
FCA Farm Credit Administration
FHF Federal Housing Finance Agency
FM Federal Mediation and Conciliation Service
FMC Federal Maritime Commission
FR Federal Reserve System Board of Governors
FT Federal Trade Commission
FTZ Foreign-Trade Zones Board
GA Government Accountability Office
GP Government Publishing Office
GS General Services Administration
HE Department of Health and Human Services
HH Department of Housing and Urban Development
HS Department of Homeland Security
I Department of the Interior
IC Interstate Commerce Commission
ID U.S. Agency for International Development
ITC International Trade Commission
J Department of Justice
JU Judiciary
L Department of Labor
LC Library of Congress
LR National Labor Relations Board
MS Merit Systems Protection Board
NAS National Aeronautics and Space Administration
NC National Capital Planning Commission
NCU National Credit Union Administration
NF National Foundation on the Arts and the Humanities
NMB National Mediation Board
NS National Science Foundation
P United States Postal Service
PE Peace Corps
PM Personnel Management Office
PR President of the United States
PREX Executive Office of the President
PRVP Vice President of the United States
RR Railroad Retirement Board
S Department of State
SBA Small Business Administration
SE Securities and Exchange Commission
SI Smithsonian Institution
SSA Social Security Administration
T Department of the Treasury
TD Department of Transportation
TDA U.S. Trade and Development Agency
VA Department of Veterans Affairs
X Congress
Y Congress
X and Y are used for the United States Congress. Boards and agencies created by Congress (versus those created by the Executive Branch) are assigned call numbers beginning with Y 3,[9] and publications of congressional committees are assigned call numbers beginning with Y 4.[10]
Subordinate offices
Subordinate offices are designated by numbers. The number 1 is reserved for the parent agency, while later numbers are used for subordinate bureaus and offices. For example, I 1 designates the main office of the Department of the Interior, while I 19 designates the United States Geological Survey, I 29 designates the National Park Service, and I 33 designates the U.S. Board on Geographic Names.[8] These latter three examples are all divisions of the Department of the Interior.
Subordinate office numbers generally range from 1-99, although the Department of Defense uses higher numbers.[9] There is a space between the letter author symbol and the subordinate office.
Category classes
Category classes are used to group together the types of publications that federal agencies commonly issue. The numbers 1-14 are reserved for the most commonly created publications:[11]
Annual reports
General publications (i.e. publications that do not fall into other classes and which are not part of series)
Bulletins
Circulars
Laws
Regulations, rules, and instructions
Press releases
Handbooks, manuals, and guides
Bibliographies and lists of publications
Directories
Maps and charts
Posters
Forms
Addresses
Numbers after 14 are assigned to series. Publications in the series CRS Reports are assigned the number 23, as shown in the example above.
Book numbers
The final component of the call number is the book number. Depending on the type of publication, this may be a Cutter number, a volume number, or some other special designation reserved for the series in question.[12]
^Castonguay, Russell (1984). A comparative guide to classification schemes for local government documents collections. Westport, Conn.: Greenwood Press. ISBN0-313-24208-9. OCLC10348702.