043 Geographic Area Code

Codes

First and Second indicators:

# Undefined

Subfields:

a Geographic area code (R)

b Local GAC code (R)

c ISO code (R)

0 Authority record control number or standard number (R)

2 Source of local code (R)

6 Linkage (NR)

8 Field link and sequence number (R)

NOTE: See MARC 21 Format for Bibliographic Data (043 Geographic Area Code) for code definitions not given below.

Description/Instructions

Field 043 contains up to three codes for geographic areas associated with a bibliographic record. The field was developed by LC as a geographic approach to subject matter. The codes enhance retrieval of material covering a particular geographic area. Codes used in subfield $a are found in MARC Code List for Geographic Areas and consist of seven characters. Subfield $b may be used for a local expansion of a GAC code. 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.

Each code, insofar as possible, provides a hierarchical breakdown of geographical and political entities. These codes are applied to works when the assigned subject heading contains a geographic term in any form or position or when the text of a work has a geographic orientation.

Editing instructions

1. For MARC geographic area codes in subfield $a, all seven characters and hyphens are input, including trailing hyphens.

2. Input up to and including three codes per record. When more than one code is input, subfield $a is repeated. The field is not repeatable.

3. Input the codes in lowercase.

043 ## n-us-la

043 ## e-ne---

043 ## n-us--- $a n-cnh--

043 ## n-us--- $a e-fr--- $a a-ja---

4. If a work deals with an area too specific to be coded, code for the next larger jurisdiction or area.

Subfields

$a Geographic area code.

Subfield $a contains a 7-character MARC code for a geographic area. Each geographic area code associated with an item is contained in a separate subfield $a.

043 ## n-us--- $a e-fr---

$b Local GAC code.

Subfield $b contains a local code for a geographic area. The code is formulated by attaching a local subentity code to an already established geographic area code. Each local GAC associated with an item is contained in a separate subfield $b. It is recommended that standard GACs also be included in subfield $a for international exchange and understanding.

043 ## s-bl--- $b s-bl-ba $2 <source of local code>

[Item represented by record related to the state of Bahia in Brazil.]

$c ISO code.

Subfield $c contains a code taken from the International Organization for Standardization's Codes for the representation of names of countries and their subdivisions - Part 1: Country codes or Part 2 : Country subdivision codes (ISO 3166).

043 ## $c us

$2 Source of local code.

The codes to be used in subfield $2 are listed in Source Codes for Vocabularies, Rules, and Schemes (Geographic Area Code and Term Source Codes).

$6 Linkage.

For instructions on use of subfield $6, see field 880.

Related fields, etc.

052

043 Geographic Area Code (MARC 21 Format for Bibliographic Data)