Library of Congress >> MARC >> Authority >> 01X-09X

01X-09X - Numbers and Codes-General Information


MARC 21 Authority
December 2023

"Full" documentation refers to the MARC 21 Format for Authority Data that contains detailed descriptions of every data element, along with examples, input conventions and history sections.

"Concise" documentation refers to the MARC 21 Format for Authority Data that contains abridged descriptions of every data element, along with examples.


DEFINITION AND SCOPE

Contains standard numbers, classification numbers, codes, and other data elements relating to the record.


CONTENT DESIGNATOR HISTORY

Field 016 - National Library of Canada Record Control Number [REDEFINED, 1997] [CAN/MARC only]
Both indicator positions were undefined. The defined subfield codes were $a (NLC record control number) and $z (Canceled/invalid NLC control number).
Field 023 - Cluster ISSN [NEW, 2023]
Field 024 - Other Standard Identifier [NEW, 2003]
Field 031 - Musical Incipits Information [NEW, 2004]
Field 034 - Coded Cartographic Mathematical Data [NEW, 2006]
Field 043 - Geographic Area Code [CHANGED, 2020]
Field 043 was changed to repeatable.
Field 046 - Special Coded Dates [NEW, 2009]
Field 055 - Library and Archives Canada Call Number [RENAMED, 2004]
Field 055, formerly National Library of Canada Call Number, was renamed to reflect change in the institution’s name.
Field 058 - LC Classification Number Assigned in Canada [OBSOLETE, 1997] [CAN/MARC only]
The first indicator was undefined. The second indicator was defined to indicate source of the number (0 = LC classification number assigned by NLC, 1 = LC classification number assigned by contributing library). The subfield codes were: $a (LC classification number - single number or beginning number of a range), $b (LC classification number - end number of a range), $c (Explanatory term), $5 (Library to which class number applies), and $6 (Linkage). Data previously recorded in this field is now recorded in field 053 (LC Classification Number).
Field 063 - NLM Classification Number Assigned by NLM [OBSOLETE, 1997] [CAN/MARC only]
Both indicators were undefined. The subfield codes were: $a (NLM classification number - single number or beginning number of a range), $b (NLM classification number - end number of a range), $c (Explanatory term).
Field 065 - Other Classification Number [NEW, 2002]
Field 068 - NLM Classification Number Assigned in Canada [OBSOLETE, 1997] [CAN/MARC only]
The first indicator was undefined. The second indicator was defined to indicate source of the number (0 = NLM classification number assigned by NLC, 1 = NLM classification number assigned by the contributing library). The subfield codes were: $a (NLM classification number - single number or beginning number of a range), $b (NLM classification number - end number of a range), $c (Explanatory term), $5 (Library to which class number applies).
Field 075 - Type of Entity [NEW, 2016]
Field 080 - Universal Decimal Classification Number [NEW, 2009]
Field 088 - Document Shelving Number (CODOC) [OBSOLETE, 1997] [CAN/MARC only]
Both indicator positions were undefined. The subfield code was: $a (Document shelving number (CODOC)).

Library of Congress >> MARC >> Authority >> 01X-09X
(12/07/2023)
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