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

Changes in repeatability:

Subfield codes

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

110 (Heading - Corporate Name)

111 (Heading - Meeting Name)

410 (See From Tracing - Corporate Name)

411 (See From Tracing - Meeting Name)

510 (See Also From Tracing - Corporate Name)

511 (See Also From Tracing - Meeting Name)

710 (Established Heading Linking Entry - Corporate Name)

711 (Established Heading Linking Entry - Meeting Name)

See also:

Appendix F:  Format Change Lists