On December 10, 2018, OCLC installed changes to WorldCat validation.  The new features and enhancements include:
*       OCLC-MARC validation of new MARC Codes announced in three Library of Congress Technical Notices ( issued August 2018 through October 12, 2018.
*       A new validation requirement for field 040 subfield $b (Language of Cataloging) to be included in every WorldCat bibliographic record.
*       Validation of the alphabetic prefix "cash" for Library and Archives Canada Subject Headings, as well as adjustments to authorizations used by LAC (OCLC symbol:  NLC).
Additionally, the relationship rules for bibliographic field 046 were corrected to allow subfields $c and $e to coexist in the same field.

See the WorldCat Validation Release Notes for December 2018 at for more details.

Please forgive any duplication of this message.


Jay Weitz
OCLC * Senior Consulting Database Specialist, WorldCat Metadata Quality, Global Product Management
6565 Kilgour Place, Dublin, Ohio USA 43017
T +1-614-764-6156 * T +1-800-848-5878 x6156 * F +1-614-718-7195
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