151  Heading - Geographic Name (NR)  (Variable Data Field)

Field definition and scope:

Field 151 contains a geographic name used as a heading in an established heading record, an established heading and subdivision record, a traced or an untraced reference record, or a reference and subdivision record.  In an established heading record, field 151 contains the established form of a geographic name.  In records for references, this field contains an unestablished form of a geographic name.

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

Field 151 is NOT repeatable.

Guidelines for applying content designators:

The content designators identify the subelements occurring in geographic name headings constructed according to generally accepted cataloging and thesaurus-building conventions [e.g., Anglo-American Cataloguing Rules (AACR 2), Library of Congress Subject Headings (LCSH)].

Jurisdiction names (including those that are ecclesiastical entities) alone or followed by subject subdivisions are X51 geographic names.

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 the X10 fields.

Geographic names used in phrase subject headings (e.g., Iran in the Koran) are contained in the X50 fields.

A geographic name that is authorized for use only as a subject subdivision part of an extended subject heading is contained in a 181 (Geographic Subdivision) field.

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

See:  Examples for this field.

Input conventions:

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

Punctuation

Spacing

Display constant

Content designator history:

Second Indicator - Nonfiling characters  [obsolete]:  The second indicator position was made obsolete in fields 151, 451, and 551 in 1993.  The values were:  0-9 (Number of nonfiling characters present).

Subfield $b - Name following place as entry element  [obsolete]:  Subfield $b was made obsolete in fields 151, 451, and 551 in 1987.  A city section name entered under the name of a jurisdiction is contained in an X10 field.  Records created before this change may contain an X51 field with a subfield $b for this type of name.

Subfield $g - Miscellaneous information  [new, 2014]

LC Guidelines:

 151  Heading - Geographic Name

Related MARC fields or documents:

X51  Geographic Names - General Information

RDA in MARC Authority Data

See also:

1XX, 3XX  Headings

Variable Data Fields