|1st Indicator Undefined|
|2nd Indicator Undefined|
|Subfields (R=Repeatable NR=Nonrepeatable)||Input Standards|
|‡a||Geographic area code (R)||Mandatory/Mandatory|
|‡b||Local GAC code (R)||Optional/Optional|
|‡c||ISO code (R)||Optional/Optional|
|‡0||Authority record control number or standard number (R)||Optional/Optional|
|‡2||Source of local code (R)||Required if applicable/Required if applicable|
|Contains the geographic area code, which is an aid to a subject approach to the item. It provides a hierarchical breakdown of geographical and/or political entities. |
You may base your code selection on geographic names and/or subdivisions in 6xx subject added entry and index term fields. Enter codes in order of importance, usually the same order as the geographic names and/or subdivisions in the 6xx fields.
Each geographic area code has seven character positions, which use lowercase letters or hyphens. All seven positions must be filled or the field will fail validation; complete any unfilled character positions with hyphens so the entry is seven characters long. See MARC Code List for Geographic Areas ( http://www.loc.gov/marc/geoareas/).
If the item deals with an area that is too specific to be represented by a code, assign the code for the next larger jurisdiction or area.
|Undefined. The 1st indicator position is undefined and contains a blank ( ).|
|Undefined. The 2nd indicator position is undefined and contains a blank ( ).|
|‡a Geographic area code||Geographic area code. Use a separate subfield ‡a for each GAC. Use the following guidelines: |
|‡b Local GAC code||Local expansion of a geographic area code. Use a separate subfield ‡b for each local GAC code. The source of the code is indicated in subfield ‡2 . It is recommended that standard geographic area codes also be included in subfield ‡a for international exchange and understanding.|
|‡c ISO code||A code taken from the ISO 3166, 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 (http://www.iso.org/iso/home/standards/country_codes.htm). |
When creating MARC bibliographic records according to RDA or AACR2, see MARC Code List for Geographic Areas ( http://www.loc.gov/marc/geoareas/) for the list of codes. Each geographic area code has seven character positions composed of lowercase letters and hyphens.
When creating Dublin Core® records, non-MARC code lists may be used.
|‡0 Authority record control number or standard number||Subfield ‡0 (zero) contains the system control number of the related authority record or a standard identifier such as an International Standard Name Identifier (ISNI). The control number or identifier is preceded by the appropriate MARC Organization code (for a related authority record) or the Standard Identifier source code (for a standard identifier scheme), enclosed in parentheses. See MARC Code List for Organizations (http://www.loc.gov/marc/organizations/) for a listing of organization codes and Standard Identifier Source Codes (http://www.loc.gov/standards/sourcelist/standard-identifier.html) for code systems for standard identifiers. Subfield ‡0 is repeatable for different control numbers or identifiers. |
Do not input subfield ‡0 in master records, instead use the control headings function. Local authority identifiers may be entered in subfield ‡0 locally, but should not be added to master records in WorldCat.
|‡2 Source of local code||Code for the source of the local code. Use only when subfield ‡2 indicates a local expansion of a GAC code. See MARC Code Lists for Relators, Sources, Description Conventions ( http://lcweb.loc.gov/marc/relators).|
|Field 043 does not print.|
Last revised: October 30, 2013