The following documents the changes contained in the twenty-fourth update to the 1999 edition of MARC 21 Format for Bibliographic Data.  Update No. 24 (May 2017) includes changes resulting from proposals that were considered by the MARC 21 community during January 2017.

New content designators:

Indicator value

070  National Agricultural Library Call Number - 1st indicator (Existence in NAL collection):  value # (No information provided)

Subfield codes

$b  Controlled term (R) in 567 (Methodology Note)

$g  Color content (R) in 340 (Physical Medium)

$i - Relationship information (R) in 370 (Associated Place)

$i   Relationship information (R) in 386 (Creator/Contributor Characteristics)

$0  Authority record control number or standard number (R) in 050 (Library of Congress Call Number)

$0  Authority record control number or standard number (R) in 052 (Geographic Classification)

$0  Authority record control number or standard number (R) in 055 (Classification Numbers Assigned in Canada)

$0  Authority record control number or standard number (R) in 060 (National Library of Medicine Call Number)

$0  Authority record control number or standard number (R) in 070 (National Agricultural Library Call Number)

$0  Authority record control number or standard number (R) in 080 (Universal Decimal Classification Number)

$0  Authority record control number or standard number (R) in 084 (Other Classification Number)

$0  Authority record control number or standard number (R) in 085 (Synthesized Classification Number Components)

$0  Authority record control number or standard number (R) in 086 (Government Document Classification Number)

$0  Authority record control number or standard number (R) in 567 (Methodology Note)

$2  Source of term (NR) in 567 (Methodology Note)

$3  Materials specified (NR) in 370 (Associated Place)

$4  Relationship (R) in 370 (Associated Place)

$4  Relationship (R) in 386 (Creator/Contributor Characteristics)

Changes in content designator names and definitions:

Subfield codes

$g  Place of origin of work renamed Place of origin of work or expression and redescribed in 370 (Associated Place)

$0  Authority record control number or standard number redescribed in Appendix A (Control Subfields)

$4  Relationship code renamed Relationship and redescribed in:

760 (Main Series Entry)

762 (Subseries Entry)

765 (Original Language Entry)

767 (Translation Entry)

770 (Supplement/Special Issue Entry)

772 (Supplement Parent Entry)

773 (Host Item Entry)

774 (Constituent Unit Entry)

775 (Other Edition Entry)

776 (Additional Physical Form Entry)

777 (Issued With Entry)

780 (Preceding Entry)

785 (Succeeding Entry)

786 (Data Source Entry)

787 (Other Relationship Entry)

$4  Relator code renamed Relationship and redescribed in:

100 (Main Entry - Personal Name)

110 (Main Entry - Corporate Name)

111 (Main Entry - Meeting Name)

600 (Subject Added Entry - Personal Name)

610 (Subject Added Entry - Corporate Name)

611 (Subject Added Entry - Meeting Name)

630 (Subject Added Entry - Uniform Title)

650 (Subject Added Entry - Topical Term)

651 (Subject Added Entry - Geographic Name)

654 (Subject Added Entry - Faceted Topical Terms)

662 (Subject Added Entry - Hierarchical Place Name)

700 (Added Entry - Personal Name)

710 (Added Entry - Corporate Name)

711 (Added Entry - Meeting Name)

720 (Added Entry - Uncontrolled Name)

751 (Added Entry - Geographic Name)

752 (Added Entry - Hierarchical Place Name)

See also:

Appendix G:  Format Change Lists

Appendices