TECHNICAL NOTICE (September 15, 2004)

Additions to the MARC Code Lists for Relators, Sources, Description Conventions

Network Development and MARC Standards Office
Library of Congress

The codes listed below have been recently approved for use in MARC 21 records. They include 3 new subject source codes, 1 new description convention source code and 1 redefinition of an authentication code. These new codes will be added to the online MARC Code Lists for Relators, Sources, Description Conventions. The new codes should not be used in exchange records until after November 15, 2004. This 60-day waiting period is required to provide MARC 21 implementers with time to include newly defined codes in any validation tables they may apply to the MARC fields where these codes are used.

• MARC Term, Name, Title Sources
  Additions:
• dacs - Describing Archives: A Content Standard (subfield $2 in Bibliographic and Community Information records in fields 600-651, 655-658 and field 040, subfield $f (Cataloging Source / Subject heading/thesaurus conventions) in Authority records)
• slvps - Standards of Learning for Virginia Public Schools (subfield $2 in Bibliographic and Community Information records in field 600-651, 655-658) and field 040, subfield $f (Cataloging Source / Subject heading/thesaurus conventions) in Authority records)
• smda -Smithsonian National Air and Space Museum Directory of Airplanes (subfield $2 in Bibliographic and Community Information records in fields 600-651, 655-658 and field 040, subfield $f (Cataloging Source / Subject heading/thesaurus conventions) in Authority records)

• MARC Description Conventions
  Additions:
• rpk - Rossiiskaíà Gosudarstvennaíà Biblioteka (subfield $e in Authority and Bibliographic records in field 040)

• MARC Other Sources
  Redefinition:
• nlc ( Field 042, Authentication Code)
Former definition: Code nlc signifies that the CONSER descriptive elements and headings have been verified by the National Library of Canada. NLC authenticates records for Canadian imprints and records of Canadian interest.



New definition: Code nlc signifies that the CONSER descriptive elements and headings have been verified by Library and Archives Canada. LAC authenticates records for Canadian imprints and records of Canadian interest.

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" electronic list (marc@loc.gov).

Go to: MARC Home Page | Library of Congress Home Page