Appendix F - Format Changes

MARC 21 Authority

June 2024

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. 38, June 2024

This page documents the changes contained in the thirty-eighth update to the 1999 edition of the MARC 21 Format for Authority Data. Update No. 38 (June 2024) includes changes resulting from proposals that were considered by the MARC 21 community since the publication of Update No. 37 (December 2023).

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

■ New content designators:

Indicator

1stType of entity in 383 (Numeric Designation of Musical Work or Expression)

Indicator values

#No information provided in 383 (Numeric Designation of Musical Work or Expression) 1st indicator: Type of entity

0Work in 383 (Numeric Designation of Musical Work or Expression) 1st indicator: Type of entity

1Expression in 383 (Numeric Designation of Musical Work or Expression) 1st indicator: Type of entity

Subfields

$0 Authority record control number or standard number (R) in 082 (Dewey Decimal Call Number)

$0 Authority record control number or standard number (R) in 083 (Dewey Decimal Classification Number)

$1 Real World Object URI (R) in 082 (Dewey Decimal Call Number)

$1 Real World Object URI (R) in 083 (Dewey Decimal Classification Number)

■ Changes in content designator names and definitions:

Field

383Numeric Designation of Musical Work renamed Numeric Designation of Musical Work or Expression and field defintion and scope redescribed

UPDATE 38 LOCAL PRINT GUIDE

The following sections and fields were created/changed in Update No. 38 and should be printed to keep a print copy of the format up-to-date. Changes appear in red.