Appendix G - Format Changes
MARC 21 Bibliographic
September 2015
This section is provided for the lists of format changes
that accompany each update to the MARC 21 Format for
Bibliographic Data.
MARC 21 FORMAT FOR BIBLIOGRAPHIC DATA
FORMAT CHANGE LIST
Update No. 21, September 2015
This page documents the changes contained in the twenty-first
update to the 1999 edition of the MARC 21 Format for
Bibliographic Data. Update No. 21 (September 2015)
includes changes resulting from proposals that were
considered by the MARC 21 community during June 2015.
UPDATE 21 CHANGES
■ New content designators:
Subfields
$0 Authority record control number or standard number (R) in 336 (Content Type)
$0 Authority record control number or standard number (R)
in 337 (Media Type)
$0 Authority record control number or standard number (R) in 338 (Carrier Type)
Fields
348Format of Notated Music (R)
■ Editorial modifications:
Links to non-reissued fields with editorial modifications are provided in the local print guide below.