Core/ MAGIRT Cartographic Resources Cataloging Interest Group

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Discusses the basic issues relating to bibliographic control of maps and related materials. Discusses rules and standards covering such cataloging, as well as application of the rules and principles both in general and in response to specific problems, and various practicing options.

This group is part of Core's Metadata & Collections Section.

WorldCat Validation Installation, 2021 November 19

  • 1.  WorldCat Validation Installation, 2021 November 19

    Posted Nov 22, 2021 10:18 AM

    On Friday, 2021 November 19, OCLC installed changes to WorldCat Validation, including the following new features and enhancements:


    • OCLC-MARC Validations of New MARC Codes Announced September-October 2021
    • New ISSN Centre Code Validated for Bibliographic 022
    • Bibliographic Field 049 Subfield $a Now Allows Most Latin Characters


    The following bug fixes were also included:


    • All Authority Validation Rule Sets Now Allow Leader/09 Code "a"
    • Correcting Various Authority Field Relationship Rules
    • Validating Authority Field 682 and Correcting its Relationship with Leader/05
    • Applying the Correct Subfield $4 Relationship Codes to 7XX Authority Heading Linking Entry Fields
    • Unicode Replacement Character (U+FFFD) Made Invalid in WorldCat
    • Using More Sensitive Language in Validation Messages
    • Improved Normalization in Duplicate Field Check


    These enhancements and fixes are the result of announcements of new MARC elements and codes by the Library of Congress as well as feedback and requests from members of the OCLC cooperative.


    See the WorldCat Validation Release Notes, November 2021 at for more details of the changes installed on 2021 November 19.


    Please forgive any duplication of this message.


    Stay well.




    Jay Weitz
    Senior Consulting Database Specialist
    Online Computer Library Center