Field definition and scope:

Field 651 contains a subject added entry in which the entry element is a geographic name.

Subject added entries are assigned to a bibliographic record to provide access according to generally accepted cataloging and thesaurus-building rules [e.g., Library of Congress Subject Headings (LCSH), Medical Subject Headings (MeSH)].  Field 651 may be used by any institution assigning subject headings based on the lists and authority files identified in the second indicator position or in subfield $2 (Source of heading or term).

Jurisdiction names alone or followed by subject subdivisions are contained in 651 fields.  A name of a jurisdiction that represents an ecclesiastical entity is contained in a 610 field.  A corporate name, a form subheading, a title of a work, and/or a city section name entered under the name of a jurisdiction are contained in 610 fields.  Geographic names used in phrase subject headings (e.g., Iran in the Koran) are contained in 650 fields.

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

Field 651 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:Input conventions:

Position

Description

NLR

MLR

Repeatability

Field 651

Subject Added Entry - Geographic Name

A

O

R

Indicator:

 

 

 

 

First

Undefined; contains a blank

M

 

 

 

 

 

 

 

Second

Thesaurus

M

 

 

0

Library of Congress Subject Headings

A

 

 

1

LC subject headings for children's literature

A

 

 

2

Medical Subject Headings

A

 

 

3

National Agricultural Library subject authority file

A

 

 

4

Source not specified

A

 

 

5

Canadian Subject Headings

A

 

 

6

Répertoire de vedettes-matière

A

 

 

7

Source specified in subfield $2

A

 

 

 

 

 

 

 

Subfield code:

 

 

 

 

 

Name portion

 

 

 

$a

Geographic name

M

O

NR

$e

Relator term

O

O

R

$g

Miscellaneous information

A

O

R

$4

Relationship

O

O

R

 

 

 

 

 

 

Subject subdivision portion

 

 

 

$v

Form subdivision

A

O

R

$x

General subdivision

A

O

R

$y

Chronological subdivision

A

O

R

$z

Geographic subdivision

A

O

R

 

 

 

 

 

 

Control subfields

 

 

 

$0

Authority record control number or standard number

O

O

R

$2

Source of heading or term

A

O

NR

$3

Materials specified

O

O

NR

$6

Linkage

A

O

NR

$8

Field link and sequence number

O

O

R

Input conventions:

Ambiguous headings  (what is considered a "geographic" name)

Punctuation

Spacing

Display constant

Initial articles

Content designator history:

Subfield $b - Geographic name following place entry element  [obsolete]:  Subfield $b was made obsolete in 1981.  Subject headings currently formulated in this pattern are contained in field 610.

Subfield $e - Relator term  [new, 2005]

Subfield $g - Miscellaneous information  [new, 2014]

Subfield $0 - Authority record control number  [new, 2007]

Subfield $0 - Authority record control number  [redefined, 2010]

Subfield $4 - Relator code  [new, 2005]

Subfield $4 - Relator code  [renamed, 2017] [redescribed, 2017]:  Subfield $4 was renamed to Relationship and redescribed to allow for the recording of relationship URIs in addition to MARC and non-MARC codes.

Related MARC fields or documents:

880  Alternate Graphic Representation

MARC Code List for Relators

Source Codes for Vocabularies, Rules, and Schemes:

Subject Heading and Term Source Codes

See also:

6XX  Subject Access Fields

Variable Data Fields