Appendix E - Format Changes
MARC 21 Classification
December 2023
This section is provided for the lists of format changes
that accompany each update to the MARC 21 Format for
Classification Data.
MARC 21 FORMAT FOR CLASSIFICATION DATA
FORMAT CHANGE LIST
Update No. 37, December 2023
There are no changes to the MARC 21 Format for
Classification Data for Update No. 37 (December 2023)
resulting from proposals that were considered by the MARC 21
community since the publication of Update No. 36 (June 2023).