Appendix E - Format Changes
MARC 21 Classification
December 2017
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. 25, December 2017
This page documents the changes contained in the twenty-fifth
update to the 1999 edition of the MARC 21 Format for
Classification Data. Update No. 25 (December 2017)
includes changes resulting from proposals that were
considered by the MARC 21 community during June 2017.
UPDATE 25 CHANGES
■ New content designators:
Subfields
$1Real World Object URI (R) in the following fields:
034 (Coded Cartographic Mathematical Data),
043 (Geographic Area Code),
700 (Index Term-Personal Name),
710 (Index Term-Corporate Name),
711 (Index Term-Meeting Name),
730 (Index Term-Uniform Title),
748 (Index Term-Chronological),
750 (Index Term-Topical),
751 (Index Term-Geographic Name),
754 (Index Term-Faceted Topical Terms),
883 (Machine-generated Metadata Provenance),
Appendix A (Control Subfields).