Library of Congress >> MARC >> Classification >> 00X

00X - Control Fields-General Information


MARC 21 Classification
January 2000

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

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

001 - Control Number (NR) Full | Concise
003 - Control Number Identifier (NR) Full | Concise
005 - Date and Time of Latest Transaction (NR) Full | Concise
008 - Fixed-Length Data Elements (NR) Full | Concise

DEFINITION AND SCOPE

Control fields contain record control number and coded information used in the processing of MARC 21 classification records. These fields have no indicators or subfield codes.

Each data element in the fixed-length 008 field is positionally defined. A detailed explanation of these positionally-defined data elements can be found in the field description.


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