Character position definition and scope:

A one-character alphabetic code that indicates whether a change in any field in a record is being considered.  The organization investigating the modification may be identified by the MARC code contained in the last subfield $d of field 040 (Cataloging Source).  Code b alerts users to a potential change in a record after its initial creation.  The completeness of the authority information contained in the record is indicated in Leader/17 (Encoding level).  The fill character ( | ) is used when no attempt has been made to code this 008 position.

National Level Requirement for character position 008/31:  Mandatory; for codes below:  Mandatory if applicable.

Guidelines for applying content designators:




Record can be used  Code a indicates that no change in the record is being considered and that the data may be used.


Record is being updated  Code b indicates that a change in the record is being considered and that it may not be advisable to use the 1XX heading in bibliographic records.


No attempt to code

LC Guidelines:

 008/31  Record update in process

Related MARC fields or documents:

Leader/17  Encoding level

040  Cataloging Source

For information on other 008 character positions, see:

008  Fixed-Length Data Elements

See also:

Variable Control Fields