Format Changes - Update No. 9, October 2008 (Appendix E: Format Change Lists)
The following documents the changes contained in the ninth update to the 2000 edition of the MARC 21 Format for Classification Data. Update No. 9 (October 2008) includes changes resulting from proposals that were considered by the MARC 21 community during 2008.
New content designators:
Fields
673 Segmented Classification Number (NR)
674 Segmentation Instruction (R)
Subfield codes
$c Classification number - ending number of span in 765 (Synthesized Number Components)
$e Classification number hierarchy - single number or beginning number of span in 153 (Classification Number)
$f Classification number hierarchy - ending number of span in 153 (Classification Number)
$q Assigning agency in 084 (Classification Scheme and Edition)
$t Topic in 683 (Application Instruction Note)
$t Topic in 761 (Add or Divide Like Instructions)
$y Table sequence number for internal subarrangement or add table in 153 (Classification Number)
$y Table sequence number for internal subarrangement or add table in 253 (Complex See Reference)
$y Table sequence number for internal subarrangement or add table in 353 (Complex See Also Reference)
$y Table sequence number for internal subarrangement or add table in 453 (Invalid Number Tracing)
$y Table sequence number for internal subarrangement or add table in 553 (Valid Number Tracing)
$y Table sequence number for internal subarrangement or add table in 680 (Scope Note)
$y Table sequence number for internal subarrangement or add table in 681 (Classification Example Tracing Note)
$y Table sequence number for internal subarrangement or add table in 683 (Application Instruction Note)
$y Table sequence number for internal subarrangement or add table in 684 (Auxiliary Instruction Note)
$y Table sequence number for internal subarrangement or add table in 685 (History Note)
$y Table sequence number for internal subarrangement or add table in 686 (Relationship Source Note)
$y Table sequence number for internal subarrangement or add table in 761 (Add or Divide Like Instructions)
$y Table sequence number for internal subarrangement or add table in 765 (Synthesized Number Components)
$y Table sequence number for internal subarrangement or add table in 768 (Citation and Preference Order Instructions)
Changes in repeatability:
Subfield code
$z Table identification in 153 (Classification Number): changed from Not repeatable (NR) to Repeatable (R)
See also: