Field definition and scope:

Field 043 contains geographic area codes (GAC) for geographic areas associated with the 1XX heading in an established heading record or a subdivision record.  A more precise identification of geographic areas associated with a geographic name heading may be contained in field 052 (Geographic Classification).

The source of the codes in subfield $a is MARC Code List for Geographic Areas that is maintained by the Library of Congress.  The source of a local code in subfield $b is indicated in subfield $2.  The source of codes in subfield $c is ISO 3166, Codes for the representation of names of countries and their subdivisions - Part 1: Country codes or Part 2: Country subdivision codes.

The National level record requirement for this field is Optional.

Field 043 is NOT repeatable.

Guidelines for applying content designators:

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

Position

Description

NLR

Repeatability

Field 043

Geographic Area Code

O

NR

Indicator:

 

 

 

First

Undefined; contains a blank

M

 

Second

Undefined; contains a blank

M

 

 

 

 

 

Subfield code:

 

 

 

$a

Geographic area code

M

R

$b

Local GAC code

O

R

$c

ISO code

O

R

$0

Authority record control number or standard number

 

R

$2

Source of local code

O

R

$6

Linkage

A

NR

$8

Field link and sequence number

O

R

Input conventions:

GAC structure

Content designator history:

Subfield $c - ISO code  [new, 2001]:  Subfield $c was defined to accommodate for ISO 3166-1 country codes.

Subfield $0 - Authority record control number or standard number  [new, 2011]

LC Guidelines:

 043  Geographic Area Code

Related MARC fields or documents:

052  Geographic Classification

MARC Code List for Geographic Areas

Source Codes for Vocabularies, Rules, and Schemes:

Geographic Area Code and Term Sources Codes

See also:

0XX  Numbers and Codes

Variable Data Fields