Appendix F - Format Changes
MARC 21 Authority
June 2021
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. 32, June 2021
This page documents the changes contained in the thirty-second
update to the 1999 edition of the MARC 21 Format for
Authority Data. Update No. 32 (June 2021)
includes changes resulting from proposals that were
considered by the MARC 21 community since the publication of Update No. 31 (December 2020).
UPDATE 32 CHANGES
■ New content designators:
Subfields
$x Nonpublic note (R) in 046 (Special Coded Dates)
$z Public note (R) in 046 (Special Coded Dates)
$0 Authority record control number or standard number (NR) in 022 (International Standard Serial Number)
$1 Real World Object URI (R) in 022 (International Standard Serial Number)
$3 Materials specified (NR) in 046 (Special Coded Dates)
■ Changes in content designator
names and definitions:
Subfields
$2 Edition number renamed Edition information and redescribed in 082 (Dewey Decimal Classification Number)
$2 Edition number renamed Edition information and redescribed in 083 (Additional Dewey Decimal Classification Number)