Superintendent of Documents Classification Scheme (SuDocs)
Depository items at Ladd are arranged by their Superintendent of Documents classification numbers. Publications are grouped together by issuing agency.
For example the U.S. Industrial Outlook has the SuDoc number:
within the agency)
Note: that the ‘dot’ in a SuDoc number is a period, not a decimal. For example, “C 61.34:” is shelved after “C 61.7:”
Congressional Hearing: GOVT. Y 4.AG 8/1: F 28 – Y 4. Indicates Congress; AG 8/1: – name of committee; F 28 – individual title
S.HRG. and S.PRT. are filed at the end of a committee’s hearings, not under S.