The Library of Congress >> Especially
for Librarians and Archivists >> Standards
The codes listed below have been recently approved for use in MARC 21 records. The codes will be added to the online MARC Code Lists for Relators, Sources, Description Conventions.
The codes should not be used in exchange records until after January 14, 2007. This 60-day waiting period is required to provide MARC 21 implementers time to include newly defined codes in any validation tables they may apply to the MARC fields where the codes are used.
The following code is for use in subfield $2 in field 506 (Restrictions on Access Note) in Bibliographic and Holdings records.
The following codes are for use in subfield $2 in Bibliographic and Community Information records in fields 600-651 and 655-657 and in subfield $f in field 040 (Cataloging Source) in Authority records.
The following code is for use in subfield $2 in Bibliographic records in field 752 (Added Entry - Hierarchical Place Name).
The Library of Congress, Network Development and MARC Standards Office provides information about existing and newly assigned MARC codes on its Web site (www.loc.gov/marc/) as well as notices such as these to subscribers to its MARC listserv. (marc@loc.gov).
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