Library of Congress >> MARC >> Authority >> Names and Terms

Names and Terms-General Information Sections

MARC 21 Authority
November 2016

X00 - Personal Names - General Information
X10 - Corporate Names - General Information
X11 - Meeting Names - General Information
X30 - Uniform Titles - General Information
X47 - Named Events - General Information
X48 - Chronological Terms - General Information
X50 - Topical Terms - General Information
X51 - Geographic Names - General Information
X55 - Genre/Form Terms - General Information
X62 - Medium of Performance Terms - General Information
X80 - General Subdivisions - General Information
X81 - Geographic Subdivisions - General Information
X82 - Chronological Subdivisions - General Information
X85 - Form Subdivisions - General Information


Sections X00, X10, X11, X30, X47, X48, X50, X51, X55, X62, X80, X81, X82, and X85 contain general information on the data elements defined for use in the 1XX (heading), 4XX (see from tracing), 5XX (see also from tracing), and 7XX (heading linking entry) fields. In MARC 21, the definitions of data elements in many fields are carried over to other fields within the same group (e.g., the 1XX fields) for consistency and as a mnemonic aid. This is particularly true of the fields defined for names, uniform titles, and terms used in headings or subdivisions to headings.

Each General Information section contains a list of content designators defined (fields, indicators, and subfield codes), guidelines for applying the content designators that are shared, and input conventions for the fields within the group. Content designators that are not valid for all fields in a group are generally not described fully in the general information sections, instead, reference is made to where a complete description can be found.

Examples given in a general information section usually represent a variety of field tags. For a larger number of field-specific examples, as well as field-specific definition and scope or guidelines for applying content designators, refer to one of the 1XX, 4XX, 5XX, or 7XX field sections.


Field X47 - Named Events-General Information [NEW, 2016]
Field X62 - Medium of Performance Terms-General Information [NEW, 2013]

Library of Congress >> MARC >> Authority >> Names and Terms
Contact Us