The following documents the changes contained in the eighteenth update to the 1999 edition of MARC 21 Format for Bibliographic Data.  Update No. 18 (April 2014) includes changes resulting from proposals that were considered by the MARC 21 community during January 2014.

New content designators:


588  Source of Description Note - 1st indicator (Display constant controller):  values # (No information provided), 0 (Source of description), and 1 (Latest issue consulted)

Changes in content designator names and definitions:

Subfield code

$f  Transmission speed renamed Encoded bitrate in 347 (Digital File Characteristics)


q  Quadraphonic renamed Quadraphonic, multichannel, or surround and redescribed in Sound Recording 007/04 (Configuration of playback channels)

Changes in repeatability:

Subfield codes

$c  Location of meeting changed to Repeatable (R) in:

110 (Main Entry - Corporate Name)

111 (Main Entry - Meeting Name)

610 (Subject Added Entry - Corporate Name)

611 (Subject Added Entry - Meeting Name)

710 (Added Entry - Corporate Name)

711 (Added Entry - Meeting Name)

810 (Series Added Entry - Corporate Name)

811 (Series Added Entry - Meeting Name)

See also:

Appendix G:  Format Change Lists