008/08  Classification validity  (Variable Control Field - Fixed-Length Data Element)

Character position definition and scope:

A one-character alphabetic code indicates whether the classification number or span in field 153 is valid, partially invalid, completely invalid, or obsolete.  This character position does not contain information about whether the classification number is a standard or optional one.  That information is in 008/09 (Standard or optional designation).  A record containing code c (Index term record) in 008/06 (Kind of record) contains code n in this character position.

Guidelines for applying content designators:

Scheme-specific conventions:

Library of Congress Classification

Dewey Decimal Classification

Related MARC fields or documents:

008/09  Standard or optional designation

X53  Classification Numbers - General Information

253  Complex See Reference

453  Invalid Number Tracing

685  History Note

For information on other 008 character positions, see:

008  Fixed-Length Data Elements

See also:

Variable Control Fields