Appendix F - Format Changes
MARC 21 Authority
November 2016
This section is provided for the lists of format changes
that accompany each update to the MARC 21 Format for
Authority Data.
MARC 21 FORMAT FOR AUTHORITY DATA
FORMAT CHANGE LIST
Update No. 23, November 2016
This page documents the changes contained in the twenty-third
update to the 1999 edition of the MARC 21 Format for
Authority Data. Update No. 23 (November 2016)
includes changes resulting from proposals that were
considered by the MARC 21 community during June 2016.
UPDATE 23 CHANGES
■ New content designators:
Fields
Leader/18Punctuation policy
075Type of Entity (R)
147Heading-Named Event (NR)
447See From Tracing-Named Event (R)
547See Also From Tracing-Named Event (R)
677Definition (R)
747Established Heading Linking Entry-Named Event (R)
885Matching Information (R)
Subfields
$0 Authority record control number or standard number (R) in 377 (Associated
Language)
Codes
Code # - No information provided
in Leader/18 (Punctuation policy)
Code c - Punctuation omitted
in Leader/18 (Punctuation policy)
Code i - Punctuation included
in Leader/18 (Punctuation policy)
Code u - Unknown
in Leader/18 (Punctuation policy)
Code u - General linking, type unspecified
in $8 (Field link and sequence number)
in Appendix A (Control Subfields)
■ Changes in content designator
names and definitions:
Subfields
$0 Authority record control number or standard number redescribed in
Appendix A (Control Subfields)
■ Editorial modifications:
Examples revised in 382 (Medium of Performance)