Appendix F - Format Changes

MARC 21 Authority

May 2019

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. 28, May 2019

This page documents the changes contained in the twenty-eighth update to the 1999 edition of the MARC 21 Format for Authority Data. Update No. 28 (May 2019) includes changes resulting from proposals that were considered by the MARC 21 community since the publication of Update No. 27 (November 2018).

Format changes in previous updates can be found on the MARC Format Overview page.

■ New content designators:

Subfields

$0Authority record control number or standard number (NR) in 024 (Other
Standard Identifier)

$1Real World Object URI (NR) in 024 (Other Standard Identifier)

■ Changes in content designator names and definitions:

Subfields

$2 Source of number or code renamed Source in 024 (Other Standard Identifier)

■ New content designators:

Subfield

$7Access status (NR) in 856 (Electronic Location and Access)

UPDATE 28 LOCAL PRINT GUIDE

The following sections and fields were created/changed in Update No. 28 and should be printed to keep a print copy of the format up-to-date. Changes appear in red.