Records can be retrieved by Author, Title or Series Title, Words in the title or series, OCLC bibliographic record number, CRL call number, ISSN or ISBN, or Subject. Holdings records for U.S. newspapers are in both union lists above and in NEPU, the union list of the U.S. Newspapers Program. Cataloging Standards and Practices . By policy, the Center has never classified its cataloged titles and, historically, did no subject analysis of its cataloged materials. However, since 1987, the Center has been providing subject analysis for cataloged materials.
Subject headings are to added originally created records or retained in copy-cataloged records.
Recent cataloging practices have increased the number of name, title, and series access points provided in new records.