The following documents the changes contained in the eleventh update to the 1999 edition of MARC 21 Format for Authority Data.  Update No. 11 (February 2010) includes changes resulting from proposals that were considered by the MARC 21 community during January 2010.

New content designators:


380  Form of Work  (R)

381  Other Distinguishing Characteristics of Work or Expression  (R)

382  Medium of Performance  (R)

383  Numeric Designation of Musical Work  (R)

384  Key  (NR)

Subfield codes

$k  Beginning or single date created (NR) in 046 (Special Coded Dates)

$l  Ending date created (NR) in 046 (Special Coded Dates)

$3  Materials specified (NR) in 034 (Coded Cartographic Mathematical Data)

Change in repeatability:

Subfield code

$e  Description conventions in 040 (Cataloging Source):  changed from Not repeatable (NR) to Repeatable (R)

See also:

Appendix F:  Format Change Lists