Field definition and scope:

Field 084 contains a classification number assigned by a cataloging agency using a scheme other than the Library of Congress Classification, the classification systems of the Library and Archives Canada, the National Library of Medicine, the National Agricultural Library, the U.S. Government Printing Office, Universal Decimal Classification, or Dewey Decimal Classification schemes.

These latter numbers are recorded in fields 050 (Library of Congress Call Number), 055 (Classification Numbers Assigned in Canada), 060 (National Library of Medicine Call Number), 070 (National Agricultural Library Call Number), 086 (Government Document Classification Number), 080 (Universal Decimal Classification Number), and 082 (Dewey Decimal Classification Number), respectively.

Field 084 is also used for numbers assigned from the CODOC system used in Canada to classify government documents.  The field is not to be used for classification numbers assigned from a source for which a subfield $2 source of number code would not be assigned.

The National level record requirement for this field is Mandatory if applicable.

Field 084 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:

Position

Description

NLR

MLR

Repeatability

Field 084

Other Classification Number

A

O

R

Indicator:

 

 

 

 

First

Undefined; contains a blank

M

 

 

Second

Undefined; contains a blank

M

 

 

 

 

 

 

 

Subfield code:

 

 

 

 

$a

Classification number

M

O

R

$b

Item number

A

O

NR

$q

Assigning agency

 

 

NR

$0

Authority record control number or standard number

O

O

R

$2

Number source

A

O

NR

$6

Linkage

A

O

NR

$8

Field link and sequence number

O

O

R

Input conventions:

Capitalization

Spacing

Content designator history:

Prior to 1997, CODOC numbers were carried in field 088 (Report Number).  [CAN/MARC only]

Subfield $q - Assigning agency  [new, 2011]

Subfield $0 - Authority record control number or standard number  [new, 2017]

Related MARC fields or documents:

050  Library of Congress Call Number

055  Classification Numbers Assigned in Canada

060  National Library of Medicine Call Number

070  National Agricultural Library Call Number

080  Universal Decimal Classification Number

082  Dewey Decimal Classification Number

086  Government Document Classification Number

880  Alternate Graphic Representation

MARC Code List for Organizations

Source Codes for Vocabularies, Rules, and Schemes:

Classification Scheme Source Codes

See also:

0XX  Numbers and Codes

Variable Data Fields