MARC 21 Concise Authority: Control Fields (00X)

This is an ARCHIVED VERSION of the 2000 electronic edition of the MARC 21 Concise Formats.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)

001 - CONTROL NUMBER (NR)

Example

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003 - CONTROL NUMBER IDENTIFIER (NR)

Example

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005 - DATE AND TIME OF LATEST TRANSACTION (NR)

Example

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008 - FIXED-LENGTH DATA ELEMENTS (NR)

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
  A one-character code that 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
  A one-character code that 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
  A one-character alphabetic code that 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
  A one-character code that indicates whether the record represents an established or unestablished 1XX heading.
  • a - Established heading
    The 100-151 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 100-151 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 100-151 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 150 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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 or may not be treated as a series.
  • 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that 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
  A one-character code that indicates the extent to which the formulation of the 100-151 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 100-151 heading is fully established but has not been used in a bibliographic record. When the heading is used, code b will be changed to code a or c.
  • c - Provisional
    The 100-151 heading cannot be formulated satisfactorily because of inadequate information. When the needed information is available, code c will be changed to code a.
  • d - Preliminary
    The 100-151 heading is taken from a bibliographic record because the bibliographic item is not available at the time the heading is established. When a bibliographic item is available, code d will 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
  A one-character code 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
  A one-character code that 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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