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MARC 21 Update No. 30: Full and Concise Available Online

Library of Congress
27 May 2020
Bibliographic Utilities

MARC 21 update no. 30 (May 2020) is now available on the MARC website. It is integrated into the documentation for each of the online full and concise formats that are maintained on that site: the Bibliographic format, Authority format, Holdings format, Classification format, and Community Information format. The documentation includes changes made to the MARC 21 formats resulting from proposals which were considered by the MARC community in November 2019.

The changes are indicated in red. Each format also has an appendix, "Format Changes for Update No. 30 (May 2020)" that lists the changes that comprise the update. Users are not expected to begin using the new features in the format until 60 days from the date of this announcement.

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