MARC 21 Concise Authority:
Control Fields (00X)

This is an ARCHIVED VERSION of the 2003 electronic edition of the MARC 21 Concise Formats. Please see www.loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

Fields 001-008 contain the record control number and other control and coded information that are used in processing MARC authority records. Each control field is identified by a field tag in the Directory and contains either a single data element or a series of fixed-length data elements identified by relative character position. Variable control fields contain neither indicator positions nor subfield codes.

• 001 - CONTROL NUMBER (NR)
• 003 - CONTROL NUMBER IDENTIFIER (NR)
• 005 - DATE AND TIME OF LATEST TRANSACTION (NR)
• 008 - FIXED-LENGTH DATA ELEMENTS (NR)

Information for Translators and Other Users
Items highlighted in red indicate changes made after the 2002 edition of the MARC 21 Concise Formats was published and are included in the 2003 printed edition of the MARC 21 Concise Formats.

001 - CONTROL NUMBER (NR)

The control number assigned by the organization creating, using, or distributing the record.

Examples

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003 - CONTROL NUMBER IDENTIFIER (NR)

The MARC code for the organization whose control number is contained in field 001 (Control Number).

See organization code sources for a listing of sources used in MARC 21 records.

Examples

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005 - DATE AND TIME OF LATEST TRANSACTION (NR)

Sixteen characters that indicate the date and time of the latest record transaction and serve as a version identifier for the record. The data and time are recorded according to Representation of Dates and Times (ISO 8601) in the pattern yyyymmdd.

Example

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008 - FIXED-LENGTH DATA ELEMENTS (NR)

Forty character positions (00-39) that contain positionally-defined data elements that provide coded information about the record as a whole or about special aspects of the 1XX heading or 4XX/5XX tracing fields. Undefined character positions contain either a blank (#) or a fill character ( | ). Each defined character position must contain either a defined code or a fill character. The fill character may be used (in certain character positions) when a cataloging organization makes no attempt to code the character position. Field 008 is not repeatable.

Character positions

• 00-05 - Date entered on file
  The computer-generated, six-character numeric string that indicates the date the MARC record was created. The date is recorded in the pattern yymmdd.
• 06 - Direct or indirect geographic subdivision
  Indicates whether the 1XX heading may be subdivided geographically when used as a subject heading and, if so, the method of subdivision used.
  • # - Not subdivided geographically
    The heading may not be subdivided geographically.
  • d - Subdivided geographically--direct
    The heading may be followed immediately by the name of the specific place to which it is limited without the interposition of a subdivision for the larger geographic entity.
  • i - Subdivided geographically--indirect
    The name of the larger geographic entity is interposed between the heading and the subdivision for the specific place to which the heading is limited.
  • n - Not applicable
    Heading is unestablished or is an established heading that is not appropriate for use as a subject added entry in bibliographic records (008/15, code b).
  • | - No attempt to code
• 07 - Romanization scheme
  Indicates whether the 1XX field contains the romanized form of the heading and, if so, identifies the romanization scheme used.
  • a - International standard
  • b - National standard
  • c - National library association standard
  • d - National library or bibliographic agency standard
  • e - Local standard
  • f - Standard of unknown origin
  • g - Conventional romanization or conventional form of name in language of cataloging agency
  • n - Not applicable
    The 1XX heading is not romanized.
  • | - No attempt to code
• 08 - Language of catalog
  Indicates whether the heading in the 1XX field and its associated reference structure are valid according to the rules used in establishing headings for English-language catalogs, French-language catalogs, or both.
  • # - No information provided
  • b - English and French
  • e - English only
  • f - French only
  • | - No attempt to code
• 09 - Kind of record
  Indicates whether the record represents an established or unestablished 1XX heading.
  • a - Established heading
    The 100-15X field contains an established name, name/title, uniform title, topical term, or one of these used in an extended subject heading.
  • b - Untraced reference
    The 100-15X field contains an unestablished heading that is not traced as a 4XX field in any established heading record. The reference record contains a 260 or 666 field.
  • c - Traced reference
    The 100-15X field contains an unestablished heading that is traced as a 4XX field in the record for each established heading referred to in fields 260 or 664.
  • d - Subdivision
    The 18X field contains an unestablished heading that may be used as a subject subdivision with an established heading.
  • e - Node label
    The 15X field contains an unestablished term that may be used in the systematic section of a thesaurus to indicate the logical basis on which a category is divided.
  • f - Established heading and subdivision
    The 15X field contains an established heading that may be used as a main term and as a subject subdivision.
  • g - Reference and subdivision
    The 15X field contains an unestablished heading that may be used as a reference term and as a subject subdivision.
• 10 - Descriptive cataloging rules
  Identifies the descriptive cataloging rules used to formulate the 1XX name, name/title, or uniform title heading in established heading or reference records.
  • a - Earlier rules
    The 1XX heading conforms to descriptive cataloging conventions used prior to the 1967 publication of Anglo-American Cataloging Rules (AACR 1).
  • b - AACR 1
    The 1XX heading conforms to the 1967 Anglo-American Cataloging Rules.
  • c - AACR 2
    The 1XX heading conforms to the second edition of Anglo-American Cataloguing Rules.
  • d - AACR 2 compatible heading
    The 1XX heading does not follow but is considered compatible with AACR 2.
  • n - Not applicable
    The 1XX heading is not a name, name/title, or uniform title formulated according to descriptive cataloging conventions and is not appropriate for use as a main or added entry in bibliographic records.
  • z - Other
    The 1XX heading conforms to a set of descriptive cataloging conventions other than those specified by the other defined codes.
  • | - No attempt to code
• 11 - Subject heading system/thesaurus
  Identifies the subject heading system/thesaurus building conventions used to formulate the 1XX heading in established heading, reference, subdivision, or node label records.
  • a - Library of Congress Subject Headings
    The 1XX heading conforms to Library of Congress Subject Headings (LCSH).
  • b - LC subject headings for children's literature
    The 1XX heading conforms to the "AC Subject Headings" section of LCSH.
  • c - Medical Subject Headings
    The 1XX heading conforms to Medical Subject Headings (MeSH).
  • d - National Agricultural Library subject authority file
    The 1XX heading conforms to the NAL subject authority file.
  • k - Canadian Subject Headings
    The 1XX heading conforms to Canadian Subject Headings.
  • n - Not applicable
    The 1XX heading does not conform to a set of subject heading/thesaurus conventions and is not appropriate for use as a subject added entry in bibliographic records.
  • r - Art and Architecture Thesaurus
    The 1XX heading conforms to Art and Architecture Thesaurus.
  • s - Sears List of Subject Headings
    The 1XX heading conforms to Sears List of Subject Headings.
  • v - Répertoire de vedettes-matière
    The 1XX heading conforms to Répertoire de vedettes-matière.
  • z - Other
    The 1XX heading conforms to a set of subject heading system/thesaurus conventions other than those specified by the other defined codes. A MARC code for the conventions used may be contained in field 040$f.
  • | - No attempt to code
• 12 - Type of series
  Indicates the type of series heading contained in the 1XX field in an established heading record.
  • a - Monographic series
    The 1XX field contains a collective series heading that applies to a group of separate publications and/or subseries.
  • b - Multipart item
    The 1XX field contains a collective heading that applies to a multipart monographic publication.
  • c - Series-like phrase
    The 1XX field contains a series-like phrase that may be used as a series added entry in bibliographic records.
  • n - Not applicable
    The 1XX heading does not represent a series or a series-like phrase and is not appropriate for use as a series added entry in bibliographic records.
  • z - Other
    The 1XX field contains a heading for a publication that does not fit any of the other defined codes but for which series-type treatment is required.
  • | - No attempt to code
• 13 - Numbered or unnumbered series
  Indicates the numbering characteristics of the series (or series-like phrase) represented by the 1XX heading.
  • a - Numbered
  • b - Unnumbered
  • c - Numbering varies
  • n - Not applicable
    The 1XX heading is not a series heading (008/12, code n).
  • | - No attempt to code
• 14 - Heading use--main or added entry
  Indicates whether the 1XX heading is appropriate for use as a main or added entry in bibliographic records.
  • a - Appropriate
    The 1XX heading in an established heading record conforms to descriptive cataloging conventions.
  • b - Not appropriate
    The 1XX heading in an established heading record does not conform to descriptive cataloging conventions or the 1XX field contains an unestablished heading in a reference, subdivision, or node label record.
  • | - No attempt to code
• 15 - Heading use--subject added entry
  Indicates whether the 1XX heading is appropriate for use as a subject added entry in bibliographic records.
  • a - Appropriate
    The 1XX heading in an established heading record conforms to subject heading system/thesaurus conventions.
  • b - Not appropriate
    The 1XX heading in an established heading record does not conform to subject heading system/thesaurus conventions or the 1XX field contains an unestablished heading in a reference, subdivision, or node label record.
  • | - No attempt to code
• 16 - Heading use--series added entry
  Indicates whether the 1XX heading is appropriate for use as a series added entry in bibliographic records.
  • a - Appropriate
    The 1XX heading in an established heading record represents one of the types of series coded in 008/12 (code a, b, c, or z).
  • b - Not appropriate
    The 1XX heading in an established heading record does not represent one of the types of series coded in 008/12 (code n) or the 1XX field contains an unestablished heading in a reference, subdivision, or node label record.
  • | - No attempt to code
• 17 - Type of subject subdivision
  Indicates the type of subject subdivision heading contained in the 1XX field of a subdivision record, an established heading and subdivision record, or a reference and subdivision record.
  • a - Topical
  • b - Form
  • c - Chronological
  • d - Geographic
  • e - Language
  • n - Not applicable
    The 1XX heading is not a subject subdivision.
  • | - No attempt to code
• 18-27 - Undefined character positions
  Each contains a blank (#) or a fill character ( | )
• 28 - Type of government agency
  Indicates whether the 1XX heading represents a government agency and, if so, the jurisdictional level of the agency.
  • # - Not a government agency
  • a - Autonomous or semi-autonomous component
  • c - Multilocal
  • f - Federal/national
  • i - International intergovernmental
  • l - Local
  • m - Multistate
  • o - Government agency--type undetermined
  • s - State, provincial, territorial, dependent, etc.
  • u - Unknown if heading is government agency
  • z - Other
  • | - No attempt to code
• 29 - Reference evaluation
  Indicates whether the 4XX/5XX tracing fields in a record have been evaluated for consistency with the rules used to formulate the 1XX heading in the record.
  • a - Tracings are consistent with the heading
  • b - Tracings are not necessarily consistent with the heading
  • n - Not applicable
    The record contains no 4XX/5XX tracing fields.
  • | - No attempt to code
• 30 - Undefined character position
  Contains a blank (#) or a fill character ( | )
• 31 - Record update in process
  Indicates whether a change in any field in a record is being considered.
  • a - Record can be used
  • b - Record is being updated
    Alerts users to a potential change in a record and that it may not be advisable to use the 1XX heading in a bibliographic record.
  • | - No attempt to code
• 32 - Undifferentiated personal name
  Indicates whether a personal name heading contained in field 100 in an established heading record or a reference record is used by one person or by two or more persons.
  • a - Differentiated personal name
    The name in field 100 is a unique name.
  • b - Undifferentiated personal name
    The name in field 100 is used by two or more persons.
  • n - Not applicable
    The 1XX heading is not a personal name or the personal name is a family name.
  • | - No attempt to code
• 33 - Level of establishment
  Indicates the extent to which the formulation of the 100-15X heading conforms to the descriptive cataloging rules coded in 008/10 and/or the subject heading system/thesaurus conventions coded in 008/11.
  • a - Fully established
  • b - Memorandum
    The 100-15X heading is fully established but has not been used in a bibliographic record. When the heading is used in a bibliographic record, code b may be changed to code a or c.
  • c - Provisional
    The 100-15X heading cannot be formulated satisfactorily because of inadequate information. When the needed information is available, code c may be changed to code a.
  • d - Preliminary
    The 100-15X heading is taken from a bibliographic record because the bibliographic item is not available at the time the heading is established. When a heading is used in a bibliographic record created from cataloging with an item in hand, code d may be changed to code a.
  • n - Not applicable
    The 1XX field contains an unestablished heading in a reference, subdivision, reference and subdivision, or node label record.
  • | - No attempt to code
• 34-37 - Undefined character positions
  Each contains a blank (#) or a fill character ( | )
• 38 - Modified record
  Indicates whether the record is modified from its intended content.
  • # - Not modified
  • s - Shortened
    Some of the data has been omitted because the record would have exceeded the maximum length allowed by a particular system.
  • x - Missing characters
    Characters that could not be converted into machine-readable form due to character set limitations are missing from the record.
  • | - No attempt to code
• 39 - Cataloging source
  Indicates the creator of an authority record. If the cataloging source is known, it is identified in subfield $a of field 040 (Cataloging Source). The parties responsible for the MARC authority records are determined by the code in 008/39 and the MARC code(s) or names(s) in field 040.
  • # - National bibliographic agency
  • c - Cooperative cataloging program
    The creator of the authority data is a participant (other than a national bibliographic agency) in a cooperative cataloging program.
  • d - Other
    An organization that is other than a national bibliographic agency or a participant in a cooperative cataloging program.
  • u - Unknown
    The creator of the authority data is unknown. This code is used when an organization transcribe manual authority data from an unknown source.
  • | - No attempt to code

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