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Appendix F - Format Changes

MARC 21 Authority
December 2017

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. 25, December 2017
This page documents the changes contained in the twenty-fifth update to the 1999 edition of the MARC 21 Format for Authority Data. Update No. 25 (December 2017) includes changes resulting from proposals that were considered by the MARC 21 community during June 2017.

Format changes in previous updates can be found on the MARC Format Overview page.
■ New content designators:
Subfields
$1Real World Object URI (R) in the following fields:
         034 (Coded Cartographic Mathematical Data),
         043 (Geographic Area Code),
         050 (Library of Congress Call Number),
         052 (Geographic Classification),
         053 (LC Classification Number),
         055 (Library and Archives Canada Call Number),
         060 (National Library of Medicine Call Number),
         065 (Other Classification Number),
         070 (National Agricultural Library Call Number),
         075 (Type of Entity),
         080 (Universal Decimal Classification Number),
         087 (Government Document Classification Number),
         260 (Complex See Reference-Subject),
         336 (Content Type),
         348 (Format of Notated Music),
         360 (Complex See Also Reference-Subject),
         368 (Other Corporate Body Attributes),
         370 (Associated Place),
         372 (Field of Activity),
         373 (Associated Group),
         374 (Occupation),
         376 (Family Information),
         377 (Associated Language),
         380 (Form of Work),
         381 (Other Distinguishing Characteristics of Work or Expression),
         382 (Medium of Performance),
         385 (Audience Characteristics),
         386 (Creator/Contributor Characteristics),
         388 (Time Period of Creation),
         500 (See Also From Tracing-Personal Name),
         510 (See Also From Tracing-Corporate Name),
         511 (See Also From Tracing-Meeting Name),
         530 (See Also From Tracing-Uniform Title),
         547 (See Also From Tracing-Named Event),
         548 (See Also From Tracing-Chronological Term),
         550 (See Also From Tracing-Topical Term),
         551 (See Also From Tracing-Geographic Name),
         555 (See Also From Tracing-Genre/Form Term),
         562 (See Also From Tracing-Medium of Performance Term),
         580 (See Also From Tracing-General Subdivision),
         581 (See Also From Tracing-Geographic Subdivision),
         582 (See Also From Tracing-Chronological Subdivision),
         585 (See Also From Tracing-Form Subdivision),
         672 (Title Related to the Entity),
         673 (Title Not Related to the Entity),
         700 (Established Heading Linking Entry-Personal Name),
         710 (Established Heading Linking Entry-Corporate Name),
         711 (Established Heading Linking Entry-Meeting Name),
         730 (Established Heading Linking Entry-Uniorm Title),
         747 (Established Heading Linking Entry-Named Event),
         748 (Established Heading Linking Entry-Chronological Term),
         750 (Established Heading Linking Entry-Topical Term),
         751 (Established Heading Linking Entry-Geographic Name),
         755 (Established Heading Linking Entry-Genre/Form Term),
         762 (Established Heading Linking Entry-Medium of Performance Term),
         780 (Established Heading Linking Entry-General Subdivision),
         781 (Established Heading Linking Entry-Geographic Subdivision),
         782 (Established Heading Linking Entry-Chronological Subdivision),
         785 (Established Heading Linking Entry-Form Subdivision),
         883 (Machine-generated Metadata Provenance),
         885 (Matching Information),
         Appendix A (Control Subfields).


■ Changes in content designator names and definitions:
Subfields
$dDate of meeting redefined as Date of meeting or treaty signing and
        changed to repeatable in:
         111 (Heading-Meeting Name),
         411 (See From Tracing-Meeting Name),
         511 (See Also From Tracing-Meeting Name),
         711 (Established Heading Linking Entry-Meeting Name).
$sVersion changed to repeatable in:
         100 (Heading-Personal Name),
         110 (Heading-Corporate Name),
         111 (Heading-Meeting Name),
         130 (Heading-Uniform Title),
         400 (See From Tracing-Personal Name),
         410 (See From Tracing-Corporate Name),
         411 (See From Tracing-Meeting Name),
         430 (See From Tracing-Uniform Title),
         500 (See Also From Tracing-Personal Name),
         510 (See Also From Tracing-Corporate Name),
         511 (See Also From Tracing-Meeting Name),
         530 (See Also From Tracing-Uniform Title),
         700 (Established Heading Linking Entry-Personal Name),
         710 (Established Heading Linking Entry-Corporate Name),
         711 (Established Heading Linking Entry-Meeting Name),
         730 (Established Heading Linking Entry-Uniorm Title).

UPDATE 25 LOCAL PRINT GUIDE

The following sections and fields were created/changed in Update No. 25 and should be printed to keep a print copy of the format up-to-date. Changes appear in red.

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