The following documents the changes contained in the twenty-eighth update to the 1999 edition of MARC 21 Format for Bibliographic 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).

New content designators:

Subfield codes

$f  Use and reproduction rights (R) in 540 (Terms Governing Use and Reproduction Note)

$g  Availability date (R) in 506 (Restrictions on Access Note)

$g  Availability date (R) in 540 (Terms Governing Use and Reproduction Note)

$q  Supplying agency (NR) in 506 (Restrictions on Access Note)

$q  Supplying agency (NR) in 540 (Terms Governing Use and Reproduction Note)

$2  Source of term (NR) in 540 (Terms Governing Use and Reproduction Note)

$2  Source of heading or term (NR) in the following fields:

100 (Main Entry - Personal Name)

110 (Main Entry - Corporate Name)

111 (Main Entry - Meeting Name)

130 (Main Entry - Uniform Title)

240 (Uniform Title)

700 (Added Entry - Personal Name)

710 (Added Entry - Corporate Name)

711 (Added Entry - Meeting Name)

730 (Added Entry - Uniform Title)

758  (Resource Identifier)

800 (Series Added Entry - Personal Name)

810 (Series Added Entry - Corporate Name)

811 (Series Added Entry - Meeting Name)

830 (Series Added Entry - Uniform Title)

See also:

Appendix G:  Format Change Lists

Appendices