Authorities: Format and Indexes

1 Introduction

Overview

Scope
Authorities: Format and Indexes provides details on selected topics that catalogers need to identify and verify information in bibliographic and/or authority records via the OCLC ® authority file. It does not cover procedures for finding, creating, modifying, saving, or exporting authority records. Nor does it explain specialized functions such as replacing master name authority records or creating records and adding them to the authority file.

Connexion documentation. For task-specific procedures, refer to OCLC Connexion ® Help (within the browser or client interface) and additional documentation available for Connexion browser or Connexion client on the OCLC web site.

Bibliographic records. For comprehensive information about WorldCat bibliographic records, see OCLC Bibliographic Formats and Standards.

Audience
Authorities: Format and Indexes contains detailed authorities-related information that can assist the following library staff:

  • Fully authorized NACO (Name Authority Cooperative Program) participants who lock, edit, and replace master records, and/or add new records
  • Cataloging users at NACO institutions who lock and edit master records prior to verification by authorized NACO users at their institution
  • Cataloging users at non-NACO institutions who edit and save authority records locally and verify names and titles when updating and/or enhancing WorldCat TM bibliographic records
  • Public services, reference, resource sharing, and acquisitions staff who verify names and titles for local use or for interlibrary loan

Superseded documentation
Authorities: Format and Indexes supersedes the third edition of the Authorities User Guide.

Updates
To learn of new and revised documentation added to the OCLC Web site, subscribe to DOCupdate-L. Send an e-mail message to listserv@oclc.org with "subscribe DOCupdate-L [your name]" in the body of the message. Do not enter the brackets around your name. Note: This list is for announcements only; it is not a discussion list.

Authority records

You can search the authority file to determine if an authoritative heading exists. If an authorized heading exists, it is described in an authority record.

An authority record contains information about a name, a uniform title, or a topical subject heading. Each authority record may contain the established form of the heading, see from references, see also from references, and notes.  The record also contains coded data that describes characteristics of the heading or record.

Records have fixed-length fields that contain coded information from the MARC 21 Leader, 005 and 008 fields. Records have variable-length fields that contain coded and textual information.

OCLC authority file

The OCLC authority file contains records received from the Library of Congress (LC) and records added by Name Authority Cooperative Program (NACO) participants. Connexion allows you to display, create and maintain headings in authority records as part of the cataloging, reference or acquisitions process.

Types of headings.The OCLC authority file contains authority records for the following types of headings:

  • Personal names
  • Corporate names
  • Conference names
  • Geographic names
  • Uniform titles
  • Series titles
  • Genre headings
  • Subject headings (topical terms as well as names and titles with subject subdivisions)
  • Children's subject headings
  • Subdivision headings

Library of Congress, PCC, NACO, and SACO. The Library of Congress (LC) and Program for Cooperative Cataloging (PCC) libraries, which participate in the Name Authority Cooperative Program (NACO) or the Subject Authority Cooperative Program (SACO) create and contribute authority records according to the rules and specifications in the following documentation:

  • MARC 21 Format for Authority Data (Library of Congress, 1999 edition)
  • LC Guidelines Supplement to the MARC 21 Format for Authority Data (Library of Congress, 2002 edition, aka The Blue Pages)
  • Anglo-American Cataloguing Rules (2nd edition, Revised)
  • Library of Congress Rule Interpretations (Library of Congress, 2nd edition, 1989-)
  • Descriptive Cataloging Manual Z1: Name and Subject Authority Records (Library of Congress)
  • NACO Participants' Manual (Library of Congress, 3rd edition, 2005)
  • Subject Cataloging Manual: Subject Headings (Library of Congress, 24th edition, 2001-)
  • SACO Participants' Manual (Program for Cooperative Cataloging, 2nd edition, 2007)

LC record loads. OCLC adds records created by LC staff, SACO participants, and non-OCLC NACO participants through electronic transfer. OCLC adds name authority records daily and subject authority records weekly.

Library of Congress authority files

The Library of Congress maintains two separate authority files: one for names and one for subjects.

LC name authority file. LC staff and NACO participants create headings for personal, corporate, conference and geographic names, as well as uniform title and series headings.

LC subject authority file. LC creates records for headings and heading-subdivision combinations included in Library of Congress Subject Headings (LCSH). LC does not necessarily create a record for every unique heading-subdivision combination assigned to a bibliographic record.

Categories not included in LCSH. Because LCSH excludes the following categories of headings, LC creates no subject authority records for:

  • Names of persons, unless used as a pattern or example, or unless a subdivision must be displayed
  • Names of corporate bodies and jurisdictions, unless used as a pattern or example
  • Headings incorporating free-floating subdivisions, unless a reference or the record was issued for subject heading validation purposes
  • Phrase headings created by incorporating free-floating terms (e.g., Region, Valley, in art, in literature)

LC creates and distributes name authority records for the first two categories.

Scope of the subject authority file. The subject authority file does not contain records for non-LC authority systems such as MeSH (Medical Subject Headings), NAL (National Agricultural Library) and LAC (Library and Archives Canada). However, access to other subject authority files is available via the OCLC Terminologies Service.

LC authority record prefixes. LC assigns authority record control numbers (LCCNs) to all authority records. The control number consists of an alphabetic prefix plus eight or ten digits. The alphabetic prefix indicates which system created the authority record.

System Assigned Prefix(es)
British Library nb - for name headings
LC n - for name headings

sh - for subject headings

sj - for subject headings for children
OCLC no - for name headings
RLIN nr - for name headings

Note: No new authority records were added via RLIN after 2007.

Note: In-process records for proposed LC subject headings are found only in the Library of Congress online system. These records have LCCNs prefixed with sp

Unique characteristics in LC records. LC subject records may contain the following unique characteristics:

  • LC subject-authority records do not carry narrower term references.
  • Source data information (e.g., 670 fields) may not be present in all existing authority records. However, newly created records usually carry source data.

Former headings used as cross-references. The LC subject authority file contains only headings and cross-references from the current edition of LCSH, its supplements, and weekly lists. Cross-references that link subject headings formerly used to their current forms may or may not be present.

Geographic subdivision practice. Topical subject headings (field 150) and topical subdivision headings (field 180) do not always support subdivision by place.

To indicate that field 150 and/or field 180 may be subdivided geographically, the fixed-field element Geo subd contains code i.

Code n or a fill character, fill character in Geo subd indicates that the heading in field 150 and/or field 180 may not be subdivided geographically.

Pattern headings for LC subjects

The Library of Congress has identified headings that are representative of particular categories. Such headings are called pattern headings. These representative headings in each category are established in the subject authority file with a set of subdivisions appropriate for use with other headings belonging to the category. The following table lists those pattern headings identified by LC. Pattern headings can help you:

  • Verify subject headings in an existing bibliographic record
  • Select appropriate subject headings to include in an original record
Subject Field Category Pattern Heading(s)
Religion Religious and monastic orders Jesuits
  Religions Buddhism
  Christian denominations Catholic Church
  Sacred works (including parts) Bible
History and Geography Colonies of individual countries Great Britain $x Colonies
  Legislative bodies (including individual chambers) United States. $b Congress
  Military services (including armies, navies, marines, etc.) United States $x Armed Forces United States. $b Air Force
United States. $b Army
United States. $b Marine Corps
United States. $b Navy
  Wars World War, 1939-1945 United States $x History $y Civil War, 1861-1865
Social Sciences Industries Construction industry Retail trade
  Types of educational institutions Universities and colleges
  Individual educational institutions Harvard University
  Legal topics Labor laws and legislation
The Arts Art Art, Italian Art, Chinese
Art, Japanese
Art, Korean
  Groups of literary authors (including authors, poets, dramatists, etc.) Authors, English
  Literary works entered under author Shakespeare, William, $d 1564-1616. $t Hamlet
  Literary works entered under title Beowulf
  Languages and groups of languages English language French language
Romance languages
  Literatures (including individual genres) English literature
  Musical compositions Operas
  Musical instruments Clarinet Piano
Science and Technology Land vehicles Automobiles
  Materials Concrete Metals
  Chemicals Copper Insulin
  Organs and regions of the body Heart Foot
  Diseases Cancer Tuberculosis
  Plants and crops Corn
  Animals Fishes Cattle

Authorizations and cataloging capabilities

Specific kinds of editing capabilities and actions you can take on bibliographic and authority records depend on your OCLC cataloging authorization level.

OCLC assigns each library one or more authorization numbers to log on to Connexion. The authorization is associated with the cataloging level established by your OCLC profile. The authorization tells Connexion when you log on what actions you are authorized to take.

Authorization levels and available actions for authority records. The following table lists authorization levels in order of most basic to highly specialized, with a list of actions available for authority records at each level.

Authorization level Connexion client actions Connexion browser actions
Search
  • Search OCLC authorities databases and display retrieved records, including WorldCat, LC names and subjects authority file, LC names and subjects history file, and the Chinese Name Authority File
  • Export records
  • Report errors in records
  • Print
  • Edit records and workforms locally
  • Save records to local save file
  • Search online save file
  • Create records
  • Use constant data
  • Import records
  • Search and display retrieved authority records from the LC names and subjects authority file and the LC names and subjects history file
  • Export records
  • Report errors in records
  • Print
Notes:
  • Chinese name authority records (available in the client only) and authority history records are read-only. You can copy and paste from the records or print them. You cannot edit or export them.
Limited Same actions as for Search plus the following actions:
  • Submit records for review
  • Lock records
  • Save records to online save file
  • Delete records from online save file
  • Validate records
Same actions as for Search plus the following actions:
  • Edit records and workforms locally
  • Create records
  • Use constant data
  • Import records
  • Submit records for review
  • Lock records
  • Save records to online save file
  • Search online save file
  • Delete records from online save file
  • Validate records
Note on the online save file: Each library has a single online save file associated with its authorization, which you can access using either the client or the browser interface.
Full Same actions as for Limited.
NACO (Name Authority Cooperative Program) Same actions as for Limited plus the following actions:
  • Replace name authority records in the OCLC authority file
  • Add new name authority records to the OCLC authority file
Agent Same actions as for Limited
Regular Enhance Same actions as for Limited
National Enhance Same actions as for NACO
CONSER Regular (Cooperative Online Serials program) Same actions as for Limited
CONSER National Same actions as for NACO
Notes:
  • See more about the Program for Cooperative Cataloging (PCC), including NACO and CONSER, on the Library of Congress Web site.
  • This table does not cover the CatExpress Web-only interface for copy cataloging. CatExpress authorizations do not have different levels. For more CatExpress information, see the CatExpress User Guide.

Definitions: edit and replace master records versus edit records locally

Edit mode Definition and notes
Master name authority record
(locked or unlocked)
  • A master record is the version of the record available to all who have access to Connexion. It does not include local data for any library.
  • To edit and replace a master record, it must be locked in Connexion:
    • Connexion client: With an authority or save file record open, click Action > Lock Master Record.
      Or
      Let the system lock the record automatically when you replace it (you must have NACO authorization to replace authority records).
      Note: If another user has already locked the record or replaced it after you opened or saved it, your replace action fails and you get an error message.
    • Connexion browser: With a save file record open, click the Action list and then click Lock Master Record.
  • When you lock a record (or the client locks it automatically before replacing it), no other user can access the master record until you unlock or take an action on it (or until the record is processed through the distribution cycle).
  • Other users can retrieve the record or edit it locally while the master record is locked.
Locally edited authority record
  • A locally edited record is a copy of the master record that you can modify for your particular library needs without affecting the master record.
  • Any time you edit a record without locking it or replacing it (when it is auto-locked in the client), you are making local edits. The record is not locked in Connexion. Therefore, other users can retrieve it, edit it locally, or lock and edit the corresponding master record.
  • You can edit a record locally regardless of whether another user has locked the master record.
  • While editing a record locally, you can add, delete or change the record content to meet your library's needs and then export the record to your local system.

Summary: Authorization levels and making master record edits versus local edits. The following table summarizes editing and actions on master versus locally edited records, depending on authorization level:

Record level/authorization level Connexion client: Editing/actions Connexion browser:
Editing/actions
Records/modifications authorized
Locally edited records
Search and higher
Edit records locally; save to local save file; export Display record; export Any record in the OCLC authority file
Client: Any modifications for local use
Locally edited records
Limited and higher
Lock (optional), edit, and save record to local or online save file; export Lock, edit, and save record to online save file; export Any record in the OCLC authority file
Any modifications for local use
Master records
NACO, National Enhance and CONSER National
Lock (optional), edit, and save record; replace; export Lock, edit, and save record; replace; export Modifications to master name authority records

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2 Authority record format: fixed-field elements

Fixed field element definitions

The following table lists the fixed field elements and the codes for each element. The elements are listed in alphabetical order. Only codes typically used in LC/NACO name authority records and LC subject authority records are listed.

Mnemonic
OCLC-MARC Position
Code  Name or Description  Comments 
ARN
001
  Authority Record Number  OCLC system-supplied
Auth/Ref:
008/09
  Kind of record code  Indicates whether the record is an authority record (1xx is an established heading) or a reference record (1xx is not an established heading)
a Established heading
b Reference record (untraced reference)
c Reference record (traced reference)
d Subdivision record
Auth status:
008/33
  Level of establishment code  Indicates the status of a heading in an authority record
a Fully established heading
b Memorandum (established but not yet used)
c Provisional
d Preliminary
n Not applicable (not an established heading)
Enc lvl:
Leader/17
  Encoding level  Indicates whether the authority record is complete
n Complete authority record
o Incomplete authority record
Entered:
008/00-05
  Date entered on file
Year, month, day (yymmdd)
Date record was entered
Geo subd:
008/06
  Direct/indirect geographic subdivision code  Indicates whether the 1xx heading can be subdivided geographically
blank character  Not subdivided geographically
i Subdivided geographically—indirect
n Not applicable
Govt agn:
008/28
  Type of government agency code  If the heading is the name of a body created or controlled by a government, a one-character code denotes the jurisdictional level of the body. LC always uses a fill character ( fill character).
blank character  Not a government agency
i International Intergovernmental
f Federal/National
a Autonomous or semi-autonomous componene of Malaysia
s State, provincial, territorial, dependent, etc.
m Multistate
c Multilocal
l Local
z Other
o Government agency—type undetermined
u Unknown if heading is for government agency
fill character  No attempt to code
Mod rec:
008/38

blank character 
Modified record code
Record not modified
Shows whether the machine-readable authority record differs from the manual authority record
Name:
008/32
  Undifferentiated personal name code  Indicates whether, because neither date nor distinguishing terms are available, the same heading is used for more than one person
a Differentiated personal name
b Undifferentiated personal name
n Not applicable
Name use:
008/14
  Heading use code—main or added entry  Represents the author aspect of the heading
a Heading appropriate for main or added entry
b Heading not appropriate for main or added entry
Rec stat:
Leader/05
  Record status  Indicates relationship of record to a file for file maintenance purposes
c Corrected or revised
n New
d Deleted
Ref status:
008/29
  Reference evaluation code  Indicates whether references have been evaluated and whether those references are consistent with the heading. Code b is used when the AACR2 form appears as the established heading (1xx) but the references may not have been re-evaluated in their relationships to the new heading.
a Tracings are consistent with heading
b Tracings are not necessarily consistent with heading
n Not applicable
Replaced:
005
  Date and time of latest transaction (NR)
(yyyymmddhhmm.sss)
Date and time the record was last updated in the OCLC authority file (displayed in ‡a)
Roman:
008/07
  Romanization scheme  Indicates the Romanization scheme used in formulating the heading in the 1xx field.
c Converted to Pinyin
n Not converted to Pinyin
fill character  No attempt to code
Rules:
008/10
  Descriptive cataloging rules code  Represents the cataloging rules used for establishing the name, name/title, or uniform title heading in the 1xx field.  LC does not currently use a, b, d. or z.
a Earlier rules
b AACR1
c AACR2
d AACR2 compatible heading
n Not applicable
z Other
Ser num: 008/13   Numbered/unnumbered series code  Indicates whether a series is numbered, unnumbered, or varies between the two.  The code used reflects the series as a whole; if numbering varies, variations are explained in field 640 and/or 641.
a Numbered series
b Unnumbered series
c Numbering varies
n Not applicable
Ser use:
008/16
  Heading use code—series added entry  Represents the series aspect of the heading
a Heading appropriate as series added entry
b Heading not appropriate as series added entry
Series:
008/12
  Type of series code  Indicates which type of series the heading in the 1xx field represents, if any
a Monographic series
b Multipart item
c Series-like phrase
n Not applicable
z Other
Source:
008/39
  Cataloging source code  Indicates the source of the authority data.  Code c is used in records contributed through NACO to LC.
blank character  National bibliographic agency
c Cooperative cataloging program
Subd type:
008/17

n
Type of subject subdivision
Not applicable
LC uses only n or a fill character to code this position.
Subj:
008/11
  Subject heading system/thesaurus code  Indicates the subject heading system used in establishing the heading.  Code a routinely appears not only for special subject headings but also for names and uniform title headings valid for use in subject work as LC-established forms.
a Library of Congress subject headings
b LC subject headings for children's literature
n Not applicable
Subj use:
008/15
  Heading use code—subject added entry  Represents the subject aspect of the heading
a Heading appropriate as subject added entry
b Heading not appropriate as subject added entry
Type:
Leader/06

z
Type of record
Authority data
Indicates the characteristics of and defines the components of the record
Upd status:
008/31
  Record update in process code  Indicates whether a change in any field of the record is underway
a Record can be used
b Record is being updated

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3 Authority record format: tag groups

Variable fields

Each variable field may have between 1 and 9,999 characters. Variable fields have three parts:

  • Three-digit codes called tags
  • Two single-digit indicators
  • One or more subfields

Tag groups

The system groups variable fields by MARC 21 tags. Tags that begin with the same digit have similar functions. In the following list, xx stands for any numeric value (00–99).

Tag group Function
0xx Control numbers, call numbers, coded data
1xx Established headings
260 Complex see reference (subject)
360 Complex see also reference (subject)
4xx See from reference
5xx See also from reference
6xx Series treatment information, notes, source citations
7xx Heading linking entries
856 Electronic location and access
9xx Locally defined headings

Indicators

Indicators supply data for indexing and other system functions. Numbers in the indicator positions have assigned meanings, and in some fields blank ( blank character ) is meaningful. Variable field indicators may have the following combinations:

  • A number in both positions
  • A number in one position and a blank space in the other
  • Two blank spaces

Subfields

Subfields are the smallest logical unit of data in a variable field. Subfield codes (letters or numbers) identify subfields and are preceded by subfield delimiters ( ). Subfields usually have textual descriptions of the authority information, but some contain coded information.

Whenever subfield a is the first subfield, both the delimiter and subfield code are implicit and do not display.

Control subfield ‡w

Subfield ‡w appears only in applicable 4xx, 5xx, and 7xx fields.
4xx and 5xx fields.  Control subfield ‡w in the 4xx and 5xx fields contains four character positions (designated as ‡w/0, ‡w/1, etc). It provides information about a specific relationship between a tracing (4xx or 5xx field) and a heading (1xx field).

  • Use ‡w to indicate whether special instructions apply to the display of the reference in the 4xx or 5xx field.
  • Use ‡w to indicate whether a tracing is restricted to the reference structure of a particular type of authority.
  • Each character position has a list of coded values that pertain to it. See the following table.

The code definitions are position-dependent. If you code any of the character positions ‡w/1- ‡w/3 with a meaningful value [that is, a value other than n ( not applicable)], you must code all the preceding positions with n as a placeholder. Succeeding positions need not be coded. If all four positions contain n, subfield ‡w does not appear.
Example:
start of message character 400 10   Sayers, Dorothy Leigh, ‡d 1893–1957 ‡w nna
The first two positions are coded n because the third position requires code a. The field contains a form of Sayers' name established under earlier cataloging rules.  No code is needed in the fourth position because it does not apply to this tracing.

Position Code Description
0    Special Relationship
• Specifies the relationship between the tracing and the     heading.
  a Earlier heading
  b Later heading
  d Acronym (pre-1981 records only)
  f Musical composition (pre-1981 records only)
  g Broader term
  n Not applicable
  r Relationship designation in subfield ‡i or ‡4 (valid in fields 500, 510, 511, and 530 only
1    Tracing Use Restriction
• Indicates the authority reference structure in which the    tracing is appropriate.
  n Not applicable
2    Earlier Form of Heading
• Indicates whether the 4xx field is an earlier form of the heading established in the relevant national authority file or in an authority file other than the national authority file.
  a Pre-AACR2 form of heading (national name authority file)
  e Earlier established form of heading (national authority file)
  n Not applicable
3    Reference Display
• Enables the generation or suppression of a cross reference from a 4xx or 5xx tracing.
  a Reference not displayed
  b Reference not displayed, field 664 used
  c Reference not displayed, field 663 used
  d Reference not displayed, field 665 used
  n Not applicable


7xx fields.  Control subfield ‡w in the 7xx fields contains two character positions designated as ‡w/0 and ‡w/1.

Position Code Description
 0   Link Display Code
• Controls the suppression of a link display.
  a Link not displayed
  b Link not displayed, field 788 used
  c Link not displayed, non-7xx field used
  n Not applicable
1   Replacement Complexity Code
• Indicates whether heading replacement requires review.
  a Heading replacement does not require review
  b Heading replacement requires review
  n Not applicable

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4 Authority record format: variable fields

Variable Field Definitions

The following table lists variable fields typically used in LC/NACO name authority records and LC subject authority records. Not all fields and/or subfields appear in records distributed by LC. Throughout this table, R = repeatable tag, NR = nonrepeatable tag, and blank character  = blank.

For additional information, see:

Access to additional authority files
Access to other authority files is available via the OCLC Terminologies Service. The Terminologies Service provides access to multiple controlled vocabularies to help you create consistent metadata for your collections. Improving information about materials can increase users' awareness of, and access to your resources.
You can integrate the Terminologies Service with Connexion or use it as a separate cataloging tool.

Tag Ind 1 Ind 2 Subfield Name Comment
010       Library of Congress Control Number (NR)  
  blank character blank character   Undefined
      ‡a LC control number (NR)  
      ‡z Canceled/invalid LC control number (R)  
016       National Bibliographic Agency Control Number (R);  
  blank character     Library and Archives Canada  
  7     Agency identified in subfield ‡2  
    blank character   Undefined  
      ‡a Record control number (NR)  
      ‡z Canceled/invalid record control number (R)  
      ‡2 Source (NR)  
020       International Standard Book Number (ISBN) (R) Contains the ISBN associated with an analyzed multipart item
  blank character blank character   Undefined
      ‡a ISBN (NR)  
      ‡c Terms of availability (NR)  
      ‡q Qualifying information (R)
A brief statement of qualifying information concerning the item associated with a number being recorded in subfield ‡a or subfield ‡z. Prior to the definition of subfield ‡q in 2013, qualifying information was contained in subfield ‡a (International Standard Book Number) and subfield ‡z (Canceled/invalid ISBN).
      ‡z Canceled/invalid ISBN (R)  
022       International Standard Serial Number (ISSN) (R) Contains the ISSN associated with a series heading
  blank character blank character   Undefined  
      ‡a ISSN (NR)  
      ‡l ISSN-L (NR) ISSN that links together various media versions of a continuing resource
      ‡m Canceled ISSN-L (R)  
      ‡y Incorrect ISSN (R)  
      ‡z Canceled/invalid ISSN (R)  
024       Other Standard Identifier (R) Contains a standard identifier associated with a series heading
  7     Type of Standard Number or Code
Source specified in subfield ‡2
 
  8     Type of Standard Number or Code
Unspecified type of standard number or code
 
    blank character   Undefined  
      ‡a Standard Number or Code (NR)  
      ‡c Terms of availability (NR)  
      ‡d Additional codes following the standard number or code (NR)  
      ‡q Qualifying information (R) A brief statement of qualifying information concerning the item associated with a number being recorded in subfield ‡a or subfield ‡z.
      ‡z Canceled/invalid standard number or code (R)  
      ‡2 Source of number or code (NR)  
031       Musical Incipits Information (R) Contains the musical incipit associated with a musical work
  blank character blank character   Undefined  
      ‡a Number of work (NR)  
      ‡b Number of movement (NR)  
      ‡c Number of excerpt (NR)  
      ‡d Caption or heading (R)  
      ‡e Role (NR)  
      ‡g Clef (R)  
      ‡m Voice/instrument (NR)  
      ‡n Key signature (NR)  
      ‡o Time signature (NR)  
      ‡p Musical notation (NR)  
      ‡q General note (R)  
      ‡r Key or mode (NR)  
      ‡s Coded validity note (R)  
      ‡t Text incipit (R)  
      ‡u Uniform Resource Identifier (R)  
      ‡y Link text (R)  
      ‡z Public note (R)  
      ‡2 System code (NR)  
034       Coded Cartographic Mathematical Data (R)  
  blank character     Undefined  
        Type of Ring  
    blank character   Not applicable  
    0   Outer ring  
    1   Exclusion ring  
      ‡d Coordinates - westernmost longitude (NR)  
      ‡e Coordinates - easternmost longitude (NR)  
      ‡f Coordinates - northernmost latitude (NR)  
      ‡g Coordinates - southernmost latitude (NR)  
      ‡j Declination - northern limit (NR)  
      ‡k Declination - southern limit (R)  
      ‡m Right ascension - eastern limit (NR)  
      ‡n Right ascension - western limit (NR)  
      ‡p Equinox (NR)  
      ‡r Distance from earth (NR)  
      ‡s G-ring lattitude (R)  
      ‡t G-ring longitude (R)  
      ‡x Beginning date (NR)  
      ‡y Ending date (NR)  
      ‡z Name of extraterrestrial body (R)  
      ‡0 Record control number (R)  
      ‡2 Source (R)  
      ‡3 Materials specified (NR)  
035       System Control Number (R) The number is preceded by the agency's MARC Organization Code (in parentheses)
  blank character blank character   Undefined
      ‡a System control number (NR)  
      ‡z Canceled/invalid system control number (R)  
040       Cataloging Source (NR); Identifies agencies that provided, transcribed, or modified the data for the record. Agencies are represented by MARC Organization Codes.
  blank character blank character   Undefined
      ‡a Original cataloging agency (NR)
      ‡b Language of cataloging (NR)
      ‡c Transcribing agency (NR)  
      ‡d Modifying agency (R)  
      ‡e Description conventions (R)  
042       Authentication Code (NR) Contains one or more authentication codes assigned by centers that review and upgrade an authority record
  blank character blank character   Undefined
      ‡a Authentication code (R)
043       Geographic Area Code (NR) Contains a code assigned from the MARC code list for geographic areas if a geographic area is associated with the record
  blank character blank character   Undefined
      ‡a Geographic area code (R)
      ‡b Local GAC code (R)
      ‡0 Record control number (R)  
      ‡2 Source of local code (R)  
046       Special Coded Dates (R) Dates that are associated with the entity described in the record.
  blank character blank character   Undefined  
      ‡f Birth date (NR)  
      ‡g Death date (NR)  
      ‡k Beginning or single date created (NR)  
      ‡l Ending date created (NR)  
      ‡o Single or starting date for aggregated content (NR) Single or starting date of original release of the contents of a collection/aggregation.
      ‡p Ending date for aggregated content (NR) Ending date of original release of the contents of a collection/aggregation.
      ‡s Start period (NR)  
      ‡t End period (NR)  
      ‡u Uniform Resource Identifier (R)  
      ‡v Source of information (R)  
      ‡2 Source of date scheme (NR)  
050       Library of Congress Call Number (R) Contains the LC call number of a series if LC has classified all or part of the series as a set. May contain call numbers that do not follow the LC classification schedules (e.g., LAW). LC has not implemented the second indicator values.
  blank character     Undefined
    0   Assigned by LC
    4   Assigned by agency other than LC
      ‡a Classification number (NR)
      ‡b Item number (NR)
      ‡d Volumes/dates to which call number applies (NR)
      ‡5 Institution to which field applies (R)
053       LC Classification Number (R) Contains one or more LC class numbers, or a range of numbers, associated with the heading, plus any explanatory terms
  blank character     Undefined
    0   Assigned by LC
    4   Assigned by agency other than LC
      ‡a Classification number element–single number or beginning number of a span (NR)  
      ‡b Classification number element–ending number of a span (NR)  
      ‡c Explanatory term (NR)  
      ‡5 Institution to which field applies (R)  
060       National Library of Medicine Call Number (R)  
  blank character     Undefined  
    0   Assigned by NLM  
    4   Assigned by agency other than NLM  
      ‡a Classification number (NR)  
      ‡b Item number (NR)  
      ‡d Volumes/dates to which call number applies (NR)  
      ‡5 Institution to which field applies (R)  
070       National Agricultural Library Call Number (R)  
  blank character blank character   Undefined  
      ‡a Classification number (NR)  
      ‡b Item number (NR)  
      ‡d Volumes/dates to which call number applies (NR)  
073       Subdivision Usage (NR)  
  blank character blank character   Undefined  
      ‡a Subdivision usage (R)  
      ‡z Source (NR)  
080       Universal Decimal Classification Number (R) Classification number associated with a 1XX heading in an established heading record. Number is taken from the Universal Decimal Classification scheme.
  blank character     No information provided
  0     Full
  1     Abridged
    blank character   Undefined
      ‡a Universal Decimal Classification Number (NR)
      ‡b Item number (NR)
      ‡x Common auxiliary subdivision (R)
      ‡2 Edition identifier (NR)
082       Dewey Decimal Call Number (R)  
  0     Full  
  1     Abridged  
  7     Other edition specified in ‡2  
    blank character   No information provided  
    0   Assigned by LC  
    4   Assigned by agency other than LC  
      ‡a Classification number (NR)  
      ‡b Item number (NR)  
      ‡d Volumes/dates to which call number applies (NR)  
      ‡2 Edition number (NR)  
      ‡5 Institution to which field applies (R)  
083       Dewey Decimal Classification Number (R) Contains one or more Dewey class numbers, or a range of numbers, associated with the authority heading and any explanatory terms
  0     Full
  1     Abridged
  7     Other edition specified in ‡2
    0   Assigned by LC  
    4   Assigned by agency other than LC  
      ‡a Classification number element–single number or beginning number of span (NR)  
      ‡b Classification number element–ending number of span (NR)  
      ‡c Explanatory term (NR)  
      ‡y Table sequence number for internal subarrangement or add table (R)  
      ‡z Table identification–table number (NR)  
      ‡2 Edition number (NR)  
      ‡5 Institution to which field applies (R)  
086       Government Document Call Number (R)  
  blank character     Source specified in subfield ‡2  
  0     Superintendent of Documents Classification System  
  1     Government of Canada Publications: Outline of Classification  
    blank character   Undefined  
      ‡a Call number (NR)  
      ‡d Volumes/dates to which call number applies (NR)  
      ‡z Canceled/invalid call number (R)  
      ‡2 Number source (NR)  
      ‡5 Institution to which field applies (R)  
087       Government Document Classification Number (R)  
  blank character     Source specified in subfield ‡2  
  0     Superintendent of Documents Classification System  
  1     Government of Canada Publications: Outline of Classification  
    blank character   Undefined  
      ‡a Classification number element–single number or beginning number of span (NR)  
      ‡b Classification number element–ending number of span (NR)  
      ‡c Explanatory information (R)  
      ‡2 Number source (NR)  
090       Local Call Number (Obsolete)  
  blank character blank character   Undefined  
      ‡a Classification number (NR)  
      ‡b Item number (NR)  
      ‡d Volumes/dates to which call number applies (NR)  
098       Other Classification Schemes (R)
Note: OCLC defined.
Field is not retained in master record.
  0–9     OCLC defined  
    0–9   OCLC defined  
      ‡a Call number based on other classification scheme (NR)  
      ‡e Feature heading (NR)  
      ‡f Filing suffix (NR)  
099       Local Free-Text Call Number (R)
Note: OCLC defined.
Field is not retained in master record.
  blank character blank character   Undefined  
    0   Library of Congress classification scheme  
    1   Dewey Decimal Classification scheme  
    9   Local classification scheme  
      ‡a Classification number (NR)  
      ‡e Feature heading (NR)  
      ‡f Filing suffix (NR)  
100       Heading–Personal Name (NR) Contains a personal name heading or reference per coding in Auth/Ref (008/09)
  0     Forename
  1     Surname
  3     Family name
    blank character   Undefined
      ‡a Personal name (NR)  
      ‡b Numeration (NR)  
      ‡c Titles and other words associated with a name (R)  
      ‡d Dates associated with a name (NR)  
      ‡e Relator term (R)  
      ‡f Date of a work (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡q Fuller form of name (NR)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
110       Heading–Corporate Name (NR) Contains a corporate name heading or reference per coding in Auth/Ref (008/09)
  0     Inverted name
  1     Jurisdiction name
  2     Name in direct order  
    blank character   Undefined  
      ‡a Corporate name or jurisdiction name as entry element (NR)  
      ‡b Subordinate unit (R)  
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting or treaty signing (R)  
      ‡e Relator term (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section/meeting (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
111       Heading–Meeting Name (NR) Contains a conference or meeting name heading or reference per coding in Auth/Ref (008/09).
  0     Inverted name  
  1     Jurisdiction name  
  2     Name in direct order  
    blank character   Undefined  
      ‡a Meeting name or jurisdiction name as entry element (NR)  
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting (NR)  
      ‡e Subordinate unit (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡n Number of part/section/meeting (R)  
      ‡p Name of part/section of a work (R)  
      ‡q Name of meeting following jurisdiction name entry element (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
130       Heading–Uniform Title (NR) Contains a series or uniform title heading or reference per coding in Auth/Ref (008/09)
  blank character     Undefined
    0   Number of nonfiling characters present  
      ‡a Uniform title (NR)  
      ‡d Date of treaty signing (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
150       Heading–Topical Term (NR) Contains a topical subject heading or reference per coding in Auth/Ref (008/09)
  blank character blank character   Undefined
      ‡a Topical term or geographic name entry element (NR)  
      ‡b Topical term following geographic name entry element (NR)  
      ‡v Form subdivision (R)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
151       Heading–Geographic Name (NR) Contains a geographic name heading or reference per coding in Auth/Ref (008/09)
  blank character blank character   Undefined
      ‡a Geographic name (NR)
      ‡v Form subdivision (R)
      ‡x General subdivision (R)
      ‡y Chronological subdivision (R)
      ‡z Geographic subdivision (R)  
155       Heading–Genre/Form Term (NR) Contains a genre heading or reference per coding in Auth/Ref (008/09)
  blank character blank character   Undefined
      ‡a Genre/form term (NR)
      ‡v Form subdivision (R)
      ‡x General subdivision (R)
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
162       Medium of Performance Term (NR)
Used as a heading in an established term record or a traced or an untraced reference record. The term may consist of more than one word. In an established term record, field 162 contains the established form of a medium of performance term. In records for references, this field contains an unestablished form of a medium of performance term. Medium of performance terms designate instruments, voices, ensembles, and other media that can be used to perform musical compositions
  blank character blank character   Undefined  
      ‡a Medium of performance term (NR)  
180       Heading–General Subdivision (NR) Contains a topical subdivision or reference per coding in Auth/Ref (008/09)
  blank character blank character   Undefined
      ‡v Form subdivision (R)
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
181       Heading–Geographic Subdivision (NR) Contains a geographic subdivision or reference per coding in Auth/Ref (008/09)
  blank character blank character   Undefined
      ‡v Form subdivision (R)
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
182       Heading–Chronological Subdivision (NR) Contains a chronological subdivision or reference per coding in Auth/Ref (008/09)
  blank character blank character   Undefined
      ‡v Form subdivision (R)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
185       Heading–Form Subdivision (NR) Contains a form subdivision or reference per coding in Auth/Ref (008/09)
  blank character blank character   Undefined
      ‡v Form subdivision (R)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
260       Complex See Reference–Subject (R) Used in a reference record. Field 260 contains the established form referred to and explanatory text. An unestablished form of the subject referred from is given in the 1xx field.
  blank character blank character   Undefined
      ‡a Heading referred to (R)
      ‡i Explanatory text (R)
      ‡0 Record Control Number (R)  
336       Content Type (R) The form of communication through which a work is expressed. Field 336 information enables expression of content types from various lists when the authority is for a title or name/title.
  blank character blank character   Undefined
      ‡a Content type term (R)
      ‡b Content type code (R)
      ‡2 Source (NR)
      ‡3 Materials specified (NR)
360       Complex See Also Reference–Subject (R) Field 360 contains the form of the heading referred to and explanatory text. The established form of the heading referred from is given in the 1xx field.
  blank character blank character   Undefined
      ‡a Heading referred to (R)
      ‡i Explanatory text (R)
      ‡0 Record control number (R)  
368       Other Corporate Body Attributes (R)  
  blank character blank character   Undefined  
      ‡a Type of corporate body (R)  
      ‡b Type of jurisdiction (R)  
      ‡c Other designation (R)  
      ‡2 Source (NR)  
           
370       Associated Place (R) A town, city, province, state, and/or country associated with persons, corporate bodies, families, works, and expressions.
  blank character blank character   Undefined
      ‡a Place of birth (NR)
      ‡b Place of death (NR)
      ‡c Associated country (R)
      ‡e Place of residence/headquarters (R)
      ‡f Other associated place (R)
      ‡g Place of origin of work (R)
      ‡s Start period (NR)
      ‡t End period (NR)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
      ‡2 Source of term (NR)
371       Address (R) An address (as well as electronic access information such as email, telephone, fax, TTY, etc. numbers) associated with the entity described in the record. Multiple addresses, such as mailing addresses and addresses corresponding to the physical location of an item or facilities, are recorded in separate occurrences of field 371.
  blank character blank character   Undefined
      ‡a Address (R)
      ‡b City (NR)
      ‡c Intermediate jurisdiction (NR)
      ‡d Country (NR)
      ‡e Postal code (NR)
      ‡m Electronic mail address (R)
      ‡s Start period (NR)
      ‡t End period (NR)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
      ‡z Public note (R)
372       Field of Activity (R) For a person: a field of endeavor, area of expertise, etc., in which the person is engaged or was engaged.For a corporate body: a field of business in which the corporate body is engaged, its area of competence, responsibility, jurisdiction, etc. The field is repeated if the entity has multiple fields of activity for different time periods.
  blank character blank character   Undefined
      ‡a Field of activity (R)
      ‡s Start period (NR)
      ‡t End period (NR)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
      ‡2 Source of term (NR)
373       Associated Group (R) Information about a group, institution, association, etc., that is associated with the entity in the 1XX. This can also be a group with which a person is or has been affiliated, including dates of affiliation. The field is repeated if the person has multiple affiliations for different time periods..
  blank character blank character   Undefined
      ‡a Associated group (R)
      ‡s Start period (NR)
      ‡t End period (NR)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
374       Occupation (R) Information about profession or occupation in which a person works or has worked, including dates applicable.The field is repeated if the person has multiple occupations for different time periods.
  blank character blank character   Undefined
      ‡a Occupation (R)
      ‡s Start period (NR)
      ‡t End period (NR)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
      ‡2 Source of term (NR)
375       Gender (R) Information about gender of a person, including dates applicable.
  blank character blank character   Undefined
      ‡a Gender (R)
      ‡s Start period (NR)
      ‡t End period (NR)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
      ‡2 Source of term (NR)
376       Family Information (R) Additional information about families, including type of family, prominent member of the family, and hereditary title.
  blank character blank character   Undefined
      ‡a Type of family (R)
      ‡b Name of prominent member (R)
      ‡c Hereditary title (R)
      ‡s Start period (NR)
      ‡t End period (NR)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
      ‡2 Source of term (NR)
377       Associated Language (R) Language of the person: the language a person uses when writing for publication, broadcasting, etc.Language of the corporate body: a language a corporate body uses in its communications.
  blank character     Undefined
    blank character   MARC Language Code
    7   Source specified in subfield ‡2
      ‡a Language code (R)
      ‡l Language term (R)  
      ‡2 Source of term (NR)  
378       Fuller Form of Personal Name (NR) A name element used to distinguish a person from another person with the same name. It may be needed when part of a name is represented only by an initial or abbreviation in the preferred form of name (1xx), or when part of the name is not included in the preferred name.
  blank character blank character   Undefined
      ‡q Fuller form of personal name (NR)
      ‡u Uniform resource idintifier (R)
      ‡v Source of information (R)
         
380       Form of Work (R) A class or genre to which a work belongs. May be used to differentiate a work from another work with the same title.
  blank character blank character   Undefined
      ‡a Form of work (R)
      ‡2 Source of term (NR)
381       Other Distinguishing Characteristic of Work or Expression (R) Any characteristic that is not accommodated in a special field that serves to characterize a work or expression. Examples are an issuing body, arranged statement of music, version, or a geographic term. May be used to differentiate a work from another work with the same title.
  blank character blank character   Undefined
      ‡a Other distinguishing characteristic (R)
      ‡u Uniform Resource Identifier (R)
      ‡v Source of information (R)
      ‡2 Source of term (NR)
382       Medium of Performance (R) The instrumental, vocal, and/or other medium of performance for which a musical work was originally conceived or for which a musical expression is written or performed. May be used to differentiate a musical work or expression from another with the same title.
  blank character     No information provided
  0     Medium of performance
  1     Partial medium of performance
    blank character   Undefined
      ‡a Medium of performance (R)
      ‡b Soloist (R)
      ‡d Doubling instrument (R)
      ‡n Number of performers of the same medium (R)
      ‡p Alternative medium of performance (R)
      ‡s Total number of performers (R)
      ‡v Note (R)
      ‡2 Source of term (NR)
383       Numeric Designation of Musical Work (R) A serial number, opus number, or thematic index number assigned to a musical work by the composer, publisher, or a musicologist. May be used to differentiate a musical work from another with the same title.
  blank character blank character   Undefined
      ‡a Serial number (R)
      ‡b Opus number (R)
      ‡c Thematic index number (R)
      ‡d Thematic index code (NR)
      ‡e Publisher associated with serial or opus number (NR)  
      ‡2 Source (NR)  
384       Key (NR) The set of pitch relationships that establishes a single pitch class as a tonal centre for a musical work or expression. May be used to differentiate a musical work or expression from another with the same title.
  blank character     Relationship to original unknown
  0     Original key
  1     Transposed key
    blank character   Undefined
      ‡a Key (NR)
385       Audience Characteristics (R)
A category of persons for which a resource is intended or a category of persons representing the intellectual level for which the content of a resource is considered appropriate.

If a demographic group is not specified then multiple audience characteristics from the same source vocabulary or code list may be recorded in the same field in separate occurrences of subfield ‡a and subfield ‡b. If a demographic group is specified then the characteristics in the field must all come from the same group. Terms from different source vocabularies are recorded in separate occurrences of the field.
  blank character blank character   Undefined  
      ‡a Audience term (R) Intended audience of the work being described. Repeatable if an audience falls into multiple demographic groups.
      ‡b Audience code (R) Code representing intended audience of the work being described.
      ‡m Demographic group term (NR) A designator for a demographic group (e.g., an age group; a religious group) to which the terms and codes in subfields ‡a or ‡b belong.
      ‡n Demographic group code (NR) A code designating the demographic group (e.g., an age group; a religious group) to which the terms and codes in subfields ‡a or ‡b belong.
      ‡0 Authority record control number or standard number (R) Subfield ‡0 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 for a listing of organization codes and Standard Identifier Source Codes for code systems for standard identifiers. Subfield ‡0 is repeatable for different control numbers or identifiers. Local authority identifiers may be entered in subfield ‡0 locally, but should not be added to master records in WorldCat.
      ‡2 Source (NR) MARC code that identifies the source of the term or code used to record intended audience information. See Subject Heading and Term Source Codes and Target Audience Code and Term Source Codes.
      ‡3 Materials specified (NR) Part of the described materials to which the field applies.
386       Creator/Contributor Characteristics
In title or name/title authority records, a category to which a creator(s) or contributor(s) to a work belongs.

If a demographic group is not specified then multiple creator/contributor group categories from the same source vocabulary or code list may be recorded in the same field in separate occurrences of subfield ‡a and subfield ‡b. If a demographic group is specified then the categories in the field must all come from the same group. Terms from different source vocabularies are recorded in separate occurrences of the field.
  blank character blank character   Undefined  
      ‡a Creator/contributor term (R) Creator/contributor group category of the work being described. Repeatable if a creator/contributor falls into multiple demographic groups.
      ‡b Creator/contributor code (R) Code representing creator/contributor group category of the work being described.
      ‡m Demographic group term (NR) A code designating the demographic group (e.g., an age group; a religious group) to which the terms and codes in subfields ‡a or ‡b belong.
      ‡n Demographic group code (NR) MARC code that specifies the demographic group category (e.g., an age group; a religious group) into which a particular term (‡a) or code (‡b) for creator/contributor group category falls.
      ‡0 Authority record control number or standard number (R) Subfield ‡0 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 for a listing of organization codes and Standard Identifier Source Codes for code systems for standard identifiers. Subfield ‡0 is repeatable for different control numbers or identifiers. Local authority identifiers may be entered in subfield ‡0 locally, but should not be added to master records in WorldCat.
      ‡2 Source (NR) MARC code that identifies the source of the term or code used to record creator/contributor information. Code from: Subject Heading and Term Source Codes.
      ‡3 Materials specified (NR) Part of the described materials to which the field applies.
400       See From Tracing–Personal Name (R) Contains the tracing for a referred-from personal name
  0     Forename
  1     Surname
  3     Family name  
    blank character   Undefined  
      ‡a Personal name (NR)  
      ‡b Numeration (NR)  
      ‡c Titles and other words associated with a name (R)  
      ‡d Dates associated with a name (NR)  
      ‡f Date of a work (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡q Fuller form of name (NR)  
      ‡r Key for music (NR)  
      ‡s Version (R)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
410       See From Tracing–Corporate Name (R)

Contains the tracing for a referred-from corporate name

  0     Inverted name
  1     Jurisdiction name
  2     Name in direct order  
    blank character   Undefined  
      ‡a Corporate name or jurisdiction name as entry element (NR)  
      ‡b Subordinate unit (R)  
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting or treaty signing (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section/meeting (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
411       See From Tracing–Meeting Name (R) Contains the tracing for a referred-from conference or meeting name
  0     Inverted name
  1     Jurisdiction name
  2     Name in direct order
    blank character   Undefined
      ‡a Meeting name or jurisdiction name as entry element (NR)
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting (NR)  
      ‡e Subordinate unit (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡i Relationship information (R)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡n Number of part/section/meeting (R)  
      ‡p Name of part/section of a work (R)  
      ‡q Name of meeting following jurisdiction name entry element (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
430       See From Tracing–Uniform Title (R) Contains the tracing for the referred-from title
  blank character     Undefined
    0   Number of nonfiling characters present
      ‡a Uniform title (NR)  
      ‡d Date of treaty signing (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
450       See From Tracing–Topical Term (R) Contains the tracing for a referred-from topical subject
  blank character blank character
 
  Undefined
      ‡a Topical term or geographic name as entry element (NR)
      ‡b Topical term following geographic name as entry element (NR)  
      ‡i Relationship information (R)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
451       See From Tracing–Geographic Name (R) Contains the tracing for a referred-from geographic name
  blank character blank character
 
  Undefined
      ‡a Geographic name (NR)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
455       See From Tracing–Genre/Form Term (R) Contains the tracing for a referred-from genre term
  blank character blank character   Undefined
      ‡a Genre/form term (NR)
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
462       See From Tracing–Medium of Performance Term (R)
Tracing for a medium of performance term see from reference. Used in an established term record to trace a see from reference from a medium of performance term not used as an established term. Medium of performance terms designate instruments, voices, ensembles, and other media that can be used to perform musical compositions.
  blank character blank character   Undefined  
      ‡a Medium of performance term (NR) May consist of more than one word.
      ‡i Relationship information (R) Designation of a relationship of the entity in a 462 field to the 1xx entity in the record or a textual reference instruction phrase than those that may be system-generated from the field tag or from the codes defined for subfield ‡w (Control subfield).
      ‡w Control subfield (NR)

Codes in one or more character positions defined to control the display of information and specify relationships, restrictions, and status.

Control subfield codes:

  • 0 Special relationship
  • 1 Tracing use restriction
  • 2 Earlier form of heading
  • 3 Reference display
      ‡4 Relationship code (R) Contains in coded form the designation of a relationship of the entity in a 462 field to the 1xx entity in the record.
      ‡5 Institution to which field applies (R) MARC code of the institution or organization that has added a tracing, reference, or linking entry field to an authority file record. It is used for institution-specific information that may or may not apply to the universal use of the authority record. See MARC Code List for Organizations for a listing of sources used in MARC 21 records.
480       See From Tracing–General Subdivision (R)  Contains the tracing for a referred-from general subdivision
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
481       See From Tracing–Geographic Subdivision (R)  Contains the tracing for a referred-from geographic subdivision
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
482       See From Tracing–Chronological Subdivision (R)  Contains the tracing for a referred-from chronological subdivision
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
485       See From Tracing–Form Subdivision (R)  Contains the tracing for a referred-from form subdivision
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
500       See Also From Tracing–Personal Name (R)  Contains the tracing for a personal name used as a see-also reference
  0     Forename
  1     Surname
  3     Family name
    blank character   Undefined  
      ‡a Personal name (NR)  
      ‡b Numeration (NR)  
      ‡c Titles and other words associated with a name (R)  
      ‡d Dates associated with a name (NR)  
      ‡f Date of a work (NR)  
      ‡i Relationship information (R)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡q Fuller form of name (NR)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
510       See Also From Tracing–Corporate Name (R) Contains the tracing for a corporate name used as a see-also reference
  0     Inverted name
  1     Jurisdiction name
  2     Name in direct order
    blank character   Undefined  
      ‡a Corporate name or jurisdiction name as entry element (NR)  
      ‡b Subordinate unit (R)  
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting or treaty signing (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡i Relationship information (R)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section/meeting (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
511       See Also From Tracing–Meeting Name (R) Contains the tracing for a conference or meeting name used as a see-also reference
  0     Inverted name
  1     Jurisdiction name
  2     Name in direct order  
    blank character   Undefined  
      ‡a Meeting name or jurisdiction name as entry element (NR)  
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting (NR)  
      ‡e Subordinate unit (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡i Relationship information (R)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡n Number of part/section of a work (R)  
      ‡p Name of part/section of a work (R)  
      ‡q Name of meeting following jurisdiction name entry element (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
530       See Also From Tracing–Uniform Title (R)  Contains the tracing for a title used as a see-also reference
  blank character     Undefined
    0   Number of nonfiling characters present
      ‡a Uniform title (NR)  
      ‡d Date of treaty signing (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡i Relationship information (R)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR)  
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
550       See Also From Tracing–Topical Term (R) Contains the tracing for a topical term used as a see-also reference
  blank character blank character

 

 
  Undefined
      ‡a Topical term or geographic name as entry element (NR)
      ‡b Topical term following geographic name as entry element (NR)  
      ‡i Relationship information (R)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
551       See Also From Tracing–Geographic Name (R) Contains the tracing for a geographic name used as a see-also reference
  blank character blank character     Undefined
      ‡a Geographic name (NR)
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
555       See Also From Tracing–Genre/Form Term (R) Contains the tracing for a genre term used as a see-also reference
  blank character blank character   Undefined
      ‡a Genre/form term (NR)
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
562        See Also From Tracing–Medium of Performance Term (R) Tracing for a medium of performance term see also from reference. Used in an established term record to trace a see also from reference from a medium of performance term not used as an established term. Medium of performance terms designate instruments, voices, ensembles, and other media that can be used to perform musical compositions.
  blank character blank character   Undefined  
      ‡a Medium of performance term (NR) May consist of more than one word.
      ‡i Relationship information (R) Designation of a relationship of the entity in a 562 field to the 1xx entity in the record or a textual reference instruction phrase than those that may be system-generated from the field tag or from the codes defined for subfield ‡w (Control subfield).
      ‡w Control subfield (NR)

Codes in one or more character positions defined to control the display of information and specify relationships, restrictions, and status.

Control subfield codes:

  • 0 Special relationship
  • 1 Tracing use restriction
  • 2 Earlier form of heading
  • 3 Reference display
      ‡4 Relationship code (R) Contains in coded form the designation of a relationship of the entity in a 562 field to the 1xx entity in the record.
      ‡5 Institution to which field applies (R) MARC code of the institution or organization that has added a tracing, reference, or linking entry field to an authority file record. It is used for institution-specific information that may or may not apply to the universal use of the authority record. See MARC Code List for Organizations for a listing of sources used in MARC 21 records.
580       See Also From Tracing–General Subdivision (R) Contains the tracing for a general subdivision used as a see-also reference
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
581       See Also From Tracing–Geographic Subdivision (R) Contains the tracing for a geographic subdivision used as a see-also reference
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
582       See Also From Tracing–Chronological Subdivision (R) Contains the tracing for a chronological subdivision used as a see-also reference
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
585       See Also From Tracing–Form Subdivision (R) Contains the tracing for a genre term subdivision used as a see-also reference
  blank character blank character   Undefined
      ‡i Relationship information (R)
      ‡v Form subdivision (R)
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡4 Relationship code (R)  
640       Series Dates of Publication and/or Volume Designation (R) Contains the beginning/ending part designations and/or dates for a seriies
         
  1     Unformatted style
    blank character   Undefined
      ‡a Dates of publication and/or sequential designation (NR)
      ‡z Source of information (NR)  
641       Series Numbering Peculiarities (R) Contains notes about coverage during the reporting year or irregularities in numbering, e.g., double numbering, combined issues, suspension of publication
  blank character blank character   Undefined
      ‡a Numbering peculiarities note (NR)
      ‡z Source of information (NR)
642       Series Numbering Example (R) Contains an example of the form of series numbering that should be used in subfield ‡v of series added entry fields in bibliographic records for individual items in the series
  blank character blank character   Undefined
      ‡a Series numbering example (NR)
      ‡d Volumes/dates to which series numbering example applies (NR)
      ‡5 Institution/copy to which field applies (R)  
643       Series Place and Publisher/Issuing Body (R) Contains place of publication, publisher or issuing body, and volumes or dates to which this information applies for the series
  blank character blank character   Undefined
      ‡a Place (R)
      ‡b Publisher/issuing body (R)  
      ‡d Volumes/dates to which place and publisher/issuing body apply (NR)  
644       Series Analysis Practice (R) Indicates the series analysis practice
  blank character blank character   Undefined
      ‡a Series analysis practice (NR)
           f   Analyzed in full
           p  Analyzed in part
           n  Not analyzed
      ‡b Exceptions to analysis practice (NR)
      ‡d Volumes/dates to which analysis practice applies (NR)  
      ‡5 Institution/copy to which field applies (R)  
645       Series Tracing Practice (R) Indicates the series tracing practice
  blank character blank character   Undefined
      ‡a Series tracing practice (NR)
           t   Traced as series added entry
           n  Not traced as series added entry  
      ‡d Volumes/dates to which tracing practice applies (NR)  
      ‡5 Institution/copy to which field applies (R)  
646       Series Classification Practice (R) Indicates the series classification practice
  blank character blank character   Undefined
      ‡a Series classification practice (NR)
           c  Volumes are classified as a collection
           m   Volumes are classified with main or other series
           s   Volumes are classified separately  
      ‡d Volumes/dates to which classification practice applies (NR)  
      ‡5 Institution/copy to which field applies (R)  
663       Complex See Also Reference–Name (NR) Contains a see also reference prepared by the cataloger when the reference is more complex than can be conveyed solely through the use of 5xx fields
  blank character blank character   Undefined
      ‡a Explanatory text (R)
      ‡b Heading referred to (R)
      ‡t Title referred to (R)  
664       Complex See Reference–Name (NR) Contains a see reference prepared by the cataloger when the reference is more complex than can be conveyed solely through the use of 4xx fields
  blank character blank character   Undefined
      ‡a Explanatory text (R)
      ‡b Heading referred to (R)
      ‡t Title referred to (R)  
665       History Reference (NR) Historical information, usually about a corporate body. (As of February 1981, LC no longer includes these notes and removes them if the record needs to be updated.)
  blank character blank character   Undefined
      ‡a History reference (R)
666       General Explanatory Reference–Name (NR) Contains information relating to searching and filing arrangement. Used only in reference records
  blank character blank character   Undefined
      ‡a General explanatory reference (R)
667       Nonpublic General Note (R) Contains a permanent or temporary note not intended for public display
  blank character blank character   Undefined
      ‡a Nonpublic general note (NR)
670       Source Data Found (R) Citation for a consulted source in which information is found related in some manner to the entity represented by the authority record or related entities. May also include the information found in the source.
  blank character blank character   Undefined
      ‡a Source citation (NR)
      ‡b Information found (NR)  
      ‡u Uniform Resource Identifier (R)  
672        Title Related to the Entity (R)  Citation for a work that is related in some manner to the entity represented by the 100, 110, 111, or 151 field in the authority record.
  blank character     Undefined   
    0
  Nonfiling characters Number of character positions associated with a definite or indefinite article (e.g., Le, An) at the beginning of a title that are disregarded in sorting and filing processes.
    1-9    Number of nonfiling characters Title begins with a definite or indefinite article that is disregarded in sorting and filing processes. Any diacritical mark, space or mark of punctuation associated with the article and any space or mark of punctuation preceding the first filing character after the article is included in the count of nonfiling characters. Any diacritic, however, associated with the first filing character is not included in the count of nonfiling characters.
      ‡a Title (NR) Title related to the entity represented by the authority record.
      ‡b Remainder of title (NR) Remainder of title related to the entity represented by the authority record.
      ‡f Date (NR) Date associated with the title in subfield ‡a.
      ‡w Bibliographic record control number (R) System control number of the related record preceded by the MARC code, enclosed in parentheses, for the agency to which the control number applies. See MARC Code List for Organizations.
      ‡0 Authority record control number or standard number (R)) 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 for a listing of organization codes and Standard Identifier Source Codes for code systems for standard identifiers. Subfield ‡0 is repeatable for different control numbers or identifiers. Local authority identifiers may be entered in subfield ‡0 locally, but should not be added to master records in WorldCat.
673        Title Not Related to the Entity (R)  Citation for a work that is related in some manner to the entity represented by the 100, 110, 111, or 151 field in the authority record.
  blank character     Undefined   
    blank character   Nonfiling characters  Number of character positions associated with a definite or indefinite article (e.g., Le, An) at the beginning of a title that are disregarded in sorting and filing processes.
    0   No nonfiling character No initial article character positions are disregarded. Diacritical marks or special characters at the beginning of a title field that does not begin with an initial article are not counted as nonfiling characters. An initial definite or indefinite article may be deleted in the formulation of the title field. If the initial article is retained but is not to be disregarded in sorting filing processes, value 0 is used.
    1-9   Number of nonfiling characters Title begins with a definite or indefinite article that is disregarded in sorting and filing processes. Any diacritical mark, space or mark of punctuation associated with the article and any space or mark of punctuation preceding the first filing character after the article is included in the count of nonfiling characters. Any diacritic, however, associated with the first filing character is not included in the count of nonfiling characters.
      ‡a Title (NR) Title not related to the entity represented by the authority record.
      ‡b Remainder of title (NR) Remainder of title not related to the entity represented by the authority record.
      ‡f Date (NR) Date associated with the title not related to the entity represented by the authority record.
      ‡w Bibliographic record control number (R) System control number of the related record preceded by the MARC code, enclosed in parentheses, for the agency to which the control number applies. See MARC Code List for Organizations for a listing of sources used in MARC 21 records.
      ‡0 Authority record control number or standard number (R) Subfield ‡0 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 for a listing of organization codes and Standard Identifier Source Codes for code systems for standard identifiers. Subfield ‡0 is repeatable for different control numbers or identifiers. Local authority identifiers may be entered in subfield ‡0 locally, but should not be added to master records in WorldCat.
675       Source Data Not Found (NR) Citation for a consulted source in which no information is found related in any manner to the entity represented by the authority record or related entities.
  blank character blank character   Undefined
      ‡a Source citation (R)
678       Biographical or Historical Data (R) A summary of the essential biographical, historical, or other information about the 1xx heading in an established heading record, an established heading and subdivision record, or a subdivision record
  blank character     No information provided
  0     Biographical sketch
  1     Administrative history
    blank character   Undefined
      ‡a Biographical or historical data (R)  
      ‡b Expansion (NR)  
680       Public General Note (R) Statement indicating the usage of a subject heading usually referring to related or overlapping headings
  blank character blank character   Undefined
      ‡a Heading or subdivision term (R)
      ‡i Explanatory text (R)  
      ‡5 Institution to which field applies (R)  
681       Subject Example Tracing Note (R) Serves in Record 1 as a tracing for another record (Record 2) in which the heading in Record 1 appears as an example in a complex see or see also reference (260 or 360) or in a scope note (680)
  blank character blank character   Undefined
      ‡a Subject heading or subdivision term (R)
      ‡i Explanatory text (R)
682       Subject Example Tracing Note Explains why a heading has been deleted from an authority file. May contain replacement heading(s). Only appropriate when Leader/05 (Rec Stat) contains code d (Deleted).
  blank character blank character    
      ‡a Replacement heading (R)
      ‡i Explanatory text (R)
690       Local Note (R)
Note: OCLC defined.
Field not retained in the master record.
  blank character blank character   Undefined  
      ‡a Local note (NR)  
700       Established Heading Linking Entry–Personal Name (R) Contains a personal name that is equivalent to the name contained in the 100 field of the same record. It links headings within a system or from different thesauri or authority files.
  0     Forename
  1     Single surname
  3     Family name
    0   Library of Congress subject headings/name authority file
    1   LC subject headings for children's literature  
    2   Medical subject eadings/NLM authority file  
    3   National Agricultural Library subject authority file  
    4   Source not specified  
    5   Canadian subject headings/LAC authority file  
    6   Répertoire des vedettes-matière  
    7   Source specified in subfield ‡2  
      ‡a Personal name (NR)  
      ‡b Numeration (NR)  
      ‡c Titles and other words associated with a name (R)  
      ‡d Dates associated with a name (NR)  
      ‡e Relator term (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡h Medium (NR)  
      ‡j Attribution qualifier (R)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡q Fuller form of name (NR)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡0 Record control number (R)  
      ‡2 Source of heading or term (R)  
      ‡5 Institution to which field applies (R)  
710       Established Heading Linking Entry–Corporate Name (R) Contains a corporate name that is equivalent to the name contained in the 110 field of the same record. It links headings within a system or from different thesauri or authority files.
  0     Inverted name
  1     Jurisdiction name
  2     Name in direct order
    0   Library of Congress subject headings/name authority file
    1   LC subject headings for children's literature  
    2   Medical subject headings/NLM authority file  
    3   National Agricultural Library subject authority file  
    4   Source not specified  
    5   Canadian subject headings/LAC authority file  
    6   Répertoire des vedettes-matière  
    7   Source specified in subfield ‡2  
      ‡a Corporate name or jurisdiction name as entry element (NR)  
      ‡b Subordinate unit (R)  
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting or treaty signing (R)  
      ‡e Relator term (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡h Medium (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section/meeting (R)  
      ‡o Arrangement statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡0 Record control number (R)  
      ‡2 Source of heading or term (NR)  
      ‡5 Institution to which field applies (R)  
711       Established Heading Linking Entry–Meeting Name (R) Contains a meeting name that is equivalent to the name contained in the 111 field of the same record. It links headings within a system or from different thesauri or authority files.
  0     Inverted name
  1     Jurisdiction name
  2     Name in direct order
    0   Library of Congress subject headings/name authority file
    1   LC subject headings for children's literature  
    2   Medical subject headings/NLM authority file  
    3   National Agricultural Library subject authority file  
    4   Source not specified  
    5   Canadian subject headings/LAC authority file  
    6   Répertoire des vedettes-matière  
    7   Source specified in subfield ‡2  
      ‡a Meeting name or jurisdiction name as entry element (NR)  
      ‡c Location of meeting (R) Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield ‡c. Place name added parenthetically to a corporate name as a qualifier is not separately subfield coded.
      ‡d Date of meeting (NR)  
      ‡e Subordinate unit (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡h Medium (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡n Number of part/section/meeting (R)  
      ‡p Name of part/section of a work (R)  
      ‡q Name of meeting following jurisdiction name entry element (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡0 Record control number (R)  
      ‡2 Source of heading or term (NR)  
      ‡5 Institution to which field applies (NR)  
730       Established Heading Linking Entry–Uniform Title (R) Contains a uniform title that is equivalent to the title contained in the 130 field of the same record. It links equivalent headings within a system or from different thesauri or authority files.
  blank character     Undefined
    0   Library of Congress subject headings/name authority file
    1   LC subject headings for children's literature
    2   Medical subject headings/NLM authority file  
    3   National Agricultural Library subject authority file  
    4   Source not specified  
    5   Canadian subject headings/LAC authority file  
    6   Répertoire des vedettes-matière  
    7   Source specified in subfield ‡2  
      ‡a Uniform title (NR)  
      ‡d Date of treaty signing (R)  
      ‡f Date of a work (NR)  
      ‡g Miscellaneous information (NR)  
      ‡h Medium (NR)  
      ‡k Form subheading (R)  
      ‡l Language of a work (NR)  
      ‡m Medium of performance for music (R)  
      ‡n Number of part/section of a work (R)  
      ‡o Arranged statement for music (NR)  
      ‡p Name of part/section of a work (R)  
      ‡r Key for music (NR)  
      ‡s Version (NR)  
      ‡t Title of a work (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡0 Record control number (R)  
      ‡2 Source of heading or term (NR)  
      ‡5 Institution to which field applies (R)  
751       Established Heading Linking Entry–Geographic Name (R) Contains a geographic name that is equivalent to the 151 geographic name or 181 geographic subdivision field of the same record. It links headings within a system or from different thesauri or authority files.
  blank character     Undefined
    0   Library of Congress subject headings/name authority file
    1   LC subject headings for children's literature
    2   Medical subject headings/NLM authority file
    3   National Agricultural Library subject authority file  
    4   Source not specified  
    5   Canadian subject headings/LAC authority file  
    6   Répertoire des vedettes-matière  
    7   Source specified in subfield ‡2  
      ‡a Geographic name (NR)  
      ‡v Form subdivision (R)  
      ‡w Control subfield (NR) See page 18 (in section 3) for details.
      ‡x General subdivision (R)  
      ‡y Chronological subdivision (R)  
      ‡z Geographic subdivision (R)  
      ‡0 Record control number (R)  
      ‡2 Source of heading or term (NR)  
      ‡5 Institution to which field applies (NR)  
762        Established Heading Linking Entry: Medium of Performance Term (R)  Medium of performance term that is equivalent to the 162 medium of performance term of the same record. It links headings within a system or from different thesauri or authority fields.
  blank character     Undefined  
    blank character   Thesaurus Name and/or subject heading system or thesaurus used in constructing the heading" and the following indicator values.
    0   Library of Congress Subject Headings/Name authority file Heading conforms to and is appropriate for use in the Library of Congress Subject Headings (LCSH) and/or the Name Authority Cooperative (NACO) file that are both cooperatively maintained at the Library of Congress.
    1   LC subject headings for children's literature Heading conforms to the "AC Subject Headings" section of the LCSH.
    2   Medical Subject Headings/NLM name authority file Heading conforms to Medical Subject Headings (MeSH) and/or the National Library of Medicine name authority files.
    3   National Agricultural Library subject authority file Heading conforms to the U.S. National Agricultural Library subject authority file.
    4   Source not specified Heading conforms to a controlled list that cannot be specified by another second indicator value or by an identifying MARC code in subfield ‡2.
    5   Canadian Subject Headings/LAC name authority file Heading conforms to and is appropriate for use in the Canadian Subject Headings and/or the Library and Archives Canada name authority file.
    6   Répertoire de vedettes-matière Heading conforms to and is appropriate for use in the Répertoire de vedettes-matière that is maintained by the Bibliothèque de l'Université de Laval.
    7   Source specified in subfield ‡2 Heading conforms to a controlled list other than that specified by one of the other defined values and for which an identifying MARC code is contained in subfield ‡2.
      ‡a Medium of performance term as entry element (NR) May consist of more than one word.
      ‡w Control subfield (NR) Codes in one or more character positions defined to control the display of information and specify relationships, restrictions, and status:

/0 - Link display
/1 - Replacement complexity
      ‡4 Relationship code (R)  
      ‡5 Institution to which field applies (R)  
      ‡0 Authority record control number or standard number (R) Subfield ‡0 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 for a listing of organization codes and Standard Identifier Source Codes for code systems for standard identifiers. Subfield ‡0 is repeatable for different control numbers or identifiers. Local authority identifiers may be entered in subfield ‡0 locally, but should not be added to master records in WorldCat.
781       Subdivision Heading Linking Entry–Geographic Subdivision (R) Contains a geographic subdivision name that is equivalent to the 151 geographic name or 181 geographic subdivision field of the same record. It links headings within a system or from different thesauri or authority files.
  blank character     Undefined
    0   Library of Congress subject headings/name authority file
      ‡z Geographic subdivision (R)  
945–949       Local Processing Information (R) Note: OCLC defined
Fields are not retained in the master record.
  blank character,
0–9
   

Locally defined
 
    blank character,
0–9
 

Locally defined
 
      ‡a–z Locally defined (R)  
952       Cataloger's Notes (R) Note: OCLC defined
Fields do not remain in master record.
  blank character blank character     Undefined  
      ‡a Cataloger's notes (NR)  
                            Ind = Indicator; R = Repeatable; NR = Nonrepeatable; blank character = Blank



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5 Indexes and indexed fields

About authority file indexing

  • Most text indexes, with similar coverage of fields and subfields, are available for either keyword searching or browsing. You cannot browse numeric indexes.
  • Indexing differs for derived searching.
  • How you specify the desired index varies with the search or browse method you use. When searching or browsing from the command line, you must type the index label followed by a colon ( :). When using the keyword search form or the Browse Authority File screen, select the index from the list provided.
  • For searching, the fields below are indexed by individual word.
  • For browsing, the fields below are indexed by phrase. Browsing matches your term or phrase character by character, from left to right, against characters in the index you specify.

Numeric indexes (not available for browsing)

Index (label) MARC Fields Indexed MARC Subfields Indexed
ARN
(an:)
001  
LCCN
(ln:)
010
667
Note: Indexing field 667 helps catalogers identify the history of personal names previously in undifferentiated authority records and subsequently established as separate authority records, using unique control numbers. The index only retrieves records with 667 fields that contain the word "undifferentiated." No textual data in the 667 field is indexed. The system does not compare or verify LCCNs in field 667 with LCCNs in field 010.
a z
a
ISBN
(bn:)
020 a z
ISSN
(in:)
022 a y z
ISSN-L
(ik:)
(ISSN Link)
022 l m

Text indexes (keyword search or browse)

Index (label) MARC Fields Indexed

MARC Subfields Indexed
(Keyword Search)

MARC Subfields Indexed
(Browse —Root)

Cataloging source (cs:) 040 a c d Not applicable
Descriptive rules (dx:) 040 e Not applicable
Personal Names (pn:) 046 f g f g
100, 400, 500, 700 a b c d e j q a b c d e j q
Corporate or Conference Names
(cn: or co:)
110, 410, 510, 710 a b c d e n a b c d e n
111, 411, 511, 711 a c d e j n q a b d e j n q
151, 451, 551, 751 a a
Genre
(ge:)
155, 455, 555, 755 a v x y z a
Keyword (kw:) All available fields All subfields Not applicable
LC Names

(nw:)

(n* -prefixed LCCNs only) [1] 
046 f g f g
100, 400, 500, 700 a b c d f h j k l m n o p q r s t a b c d e j q
110, 410, 510, 710 a b c d f g h k l m n o p r s t a b c d e n
111, 411, 511, 711 a c d e f g h j k l n p q s t a c d e j n q
151, 451, 551, 751 a a
130, 430, 530, 730 a d f g h k l m n o p r s t a d g h k m n o p r s t
Titles (ti:)

[2] 
100, 400, 500, 700 f h k l m n o p r s t f h k l m n o p r s t
110, 410, 510, 710 d f g h k l m n o p r s t d f g h k l m n o p r s t
111, 411, 511, 711 d f g h k l n p s t d f g h k l n p s t
130, 430, 530, 730 a d f g h k l m n o p r s t a d f g h k l m n o p r s t
031 d t d t
Geographic Names (gg:) 151, 451, 551, 751 a v x y z a
181, 481, 581, 781 v x y z
781: z only
Not applicable
Musical Incipits (mi:)
(Browse only)
031 Not indexed for searching p
Notes (nt:) 663, 664 a b t Not applicable
665, 666, 667, 675, 688 a Not applicable
670, 678 a b u Not applicable
680, 681, 682 a i Not applicable
Entity Attribute (en:) 046 f g k l s t Not indexed for browsing
368 a b c
370 a b c e f g s t
371 a b c d e m s t z
372, 373, 374, 375 a s t
376 a b c s t
377 a l
378 q
380, 381, 384 a
382 a b d p v
383 a b c d e
Relationship
(rx:)
100, 400, 500, 700 e j Not indexed for browsing
110, 410, 510, 710 e
111, 411, 511, 711 j
400, 410, 411, 430, 450,451, 455, 480, 481, 482, 485 i 4
500, 510, 511, 530, 550, 551, 555, 580, 581, 582, 585 i 4
Cartographic Data (cm:)
(Search only)
034 d e f g z Not indexed for browsing
Subdivision Headings (sb:) 180, 480, 580, 780 v x y z v x y z
181, 481, 581, 781 v x y z
781: z only
v x y z
781: z only
182, 482, 582, 782 v x y z v x y z
185, 485, 585, 785 v x y z v x y z
Topicals (sp:) 150, 450, 550, 750 a b v x y z a b
LCSH (su:)
[3]
046 f g f g
100, 400, 500, 700 a b c d e f h j k l m n o p q r s t v x y z a b c d f h j k l m n o p q r s t
110, 410, 510, 710 a b c d e f g h j k l m n o p q r s t v x y z a b c d f g h j k l m n o p r s t
111, 411, 511, 711 a b c d e f g h j k l m n o p q r s t v x y z a b c d e f g h j k l n p q s t
130, 430, 530, 730 a b c d e f g h j k l m n o p q r s v x y z a d f g h k l m n o p r s t
150, 450, 550, 750 a b v x y z a b
151, 451, 551, 751 a v x y z a
180, 480, 580, 780 v x y z v x y z
181, 481, 581, 781 v x y z
781: z only
v x y z
781: z only
182, 482, 582, 782 v x y z v x y z
185, 485, 585, 785 v x y z v x y z
Children's Subjects (sj:) 046 f g f g
100, 400, 500, 700 a b c d e f h j k l m n o p q r s t v x y z a b c d f h j k l m n o p q r s t
110, 410, 510, 710 a b c d e f g h j k l m n o p q r s t v x y z a b c d f g h j k l m n o p r s t
111, 411, 511, 711 a b c d e f g h j k l m n o p q r s t v x y z a b c d f g h j k l m n p q s t
130, 430, 530, 730 a b c d e f g h j k l m n o p q r s t v x y z a d f g h k l m n o p r s t
150, 450, 550, 750 a b v x y z a b
151, 451, 551, 751 a v x y z a
180, 480, 580, 780 v x y z v x y z
181, 481, 581, 781 v x y z
781: z only
v x y z
781: z only
182, 482, 582, 782 v x y z v x y z
185, 485, 585, 785 v x y z v x y z
Table Notes [1] Includes all Library of Congress authority records with 010 prefix starting with n* (n, nb, no, nr, or ns).
[2] Subfields from the index for title name headings from tags x00, x10, x11 are the reverse of subfields indexed for personal, corporate, and conference name indexes.
[3] This index contains all Library of Congress authority records with the 010 prefixes sh and sj, as well as x51 headings from authority records with the 010 prefix starting with n* (n, nb, no, nr, or ns).

Indexes for derived searching

Index (label) MARC Fields Indexed MARC Subfields Indexed
Personal Name (pd:)
4,3,1 
100, 400, 500, 700 a

Corporate, Conference, or Geographic Name (cd:)
=4,3,1

110, 410, 510, 710 a b
111, 411, 511, 711 a e
151, 451, 551, 751, 781 a v x y z

Title (td:)
3,2,2,1

100, 400, 500, 700 f g h k l m n o p r s t
110, 410, 510, 710 d f g h k l m n o p r s t
111, 411, 511, 711 d f g h k l n p s t
130, 430, 530, 730 a d f g h k l m n o p r s t

Subject (sd:)
5,3

150, 450, 550, 750 a v x y z
180, 480, 580, 780 v x y z
181, 481, 581, 781 v x y z (781: z only)
182, 482, 582, 782 v x y z
185, 485, 585, 785 v x y z

Authority History indexes (search and browse)

Search indexes

  • To search the Authority History database via Connexion browser, on the Authorities tab, under Search Options, click Authority History.
  • To search the Authority History database via Connexion client, click Authorities > Search > LC Names and Subjects History.
  • The Search Authority History screen supports two search methods:
    • In the Command Line search area, type the index label followed by a colon, and then the search term.
    • In the guided (Keyword/Numeric) search area, type term(s) in one or more text boxes; for each term, select the desired index from the list.

Note: Status index: qualifier only. Use the Status index only as a qualifier or restrictor combined with a search in another Authority History index. If you start a search with only a status value, Connexion redisplays the search screen with a message reminding you to combine status criteria with another search term.

Index (label) MARC Fields Indexed MARC Subfields Indexed
Status (ahs:) *  Leader byte 06 N/A
ARN (an:) 001 N/A
LCCN Words (ln:) 010 a z
Heading Words (me:) 100, 400
110, 410
111, 411
130, 430
150, 450
151, 451
155, 455
180, 480
181, 481
182, 482
185, 485
a b c d e f g h j k l m n o p q r s t v x y z
Table Note Status index. You can qualify an Authority History search by specifying a status for the retrieved records. Use the Status index as a search qualifier only. Always combine a Status search term with a search term in another Authority History index. If you search the Status index only, you receive an error message.
Status codes. Status codes c, d, and n are supplied by Library of Congress. Connexion supplies the code p when a record is manually deleted by OCLC staff. Possible status codes are:
c - Corrected or revised record
n - New record
d - Deleted record
p - Record manually deleted

Browse indexes

  • To browse the Authority History database via Connexion browser, on the Authorities tab, under Browse Options, click Authority History.
  • To browse the Authority History database via Connexion client, click Authorities > Browse > LC Names and Subjects History.
  • You can also browse from the Search Authority History screen. In the Command Line area, type the Scan command ( sca), a space, the index label (including a colon ) for the desired browse index, and then the browse term.

About Authority History browse results. Authority History browse results differ in functionality and appearance from results for browsing the Authority File:

  • Root and expanded indexing is not supported in the Authority History database.
  • Headings in browse results are displayed in all-uppercase text.
Index (label) MARC Fields Indexed MARC Subfields Indexed
ARN (an:) 001 N/A
LCCN Phrase (ln:) 010 a z
Heading Phrase (me:) 100, 400 a b c d e f g h j k l m n o p q r s t v x y z
110, 410 a b c d e f g h k l n o p s t v x y z
130, 430 a d f g h k l m n o p r s t v x y z
150, 450
151, 451
a b v x y z
155, 455 a v x y z
180, 480
181, 481
182, 482
185, 485
v x y z

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6 Authority record change requests

Changes to existing records

When appropriate, OCLC changes records in the OCLC authority file. OCLC can correct tagging and typographical errors and add or modify references in name authority records, as well as resolve conflicts and disagreements with the form of heading. OCLC also merges data as appropriate on duplicate authority records before reporting to LC for final processing.

Note: OCLC cannot make changes to subject authority records, that is, any record with LCCN prefix sh, sj, or gf.

The OCLC MARC Organization Code OCoLC in subfield d of field 040 identifies OCLC-modified records.

Report these problems

  • Coding and input errors.  Examples are topical term headings coded 100, omission of subfield codes, typographical errors in explanatory text.
  • Duplicate authority records. Duplicate records are two or more records (with different control numbers in field 010) for the same heading.  Do not report reference records as duplicate records (in a tagged display, reference records are identified by code b or c in fixed field element Auth/Ref).
  • Inconsistencies in the file.  For example, two records in a hierarchy for the same author, one record a name only, the other a name-title record with differing forms of the name.
  • Records missing from the file.  For example, headings used in full- or core-level LC-MARC AACR2 bibliographic records that are not in the OCLC authority file.
  • Conflicts.  For example, conflicts between name authority records and subject authority records for the same heading.
  • Lack of references from other form of name.  For example, an author appearing on one item with a given name and on another with that given name abbreviated as an initial.

Do not report as errors

  • Subject headings that exist in WorldCat records that are outside the scope of the subject authority file (i.e., not represented in the file).
  • Disagreements with spelling, choice of term, and other matters of opinion outside the requirement of cataloging rules.

Changes that require proof

Major change requests require supporting documentation which can either be mailed or faxed. When sending printouts be sure to mark the pages clearly as to their location on the item (e.g., title page, jacket, cover page, page preceding preface, etc.). A copy of the page which shows the date of publication and/or copyright date must be included if a date is not shown on the title page.

Examples of changes requiring proof:

  • Changes to the heading except those based on rules only
  • Addition of linking references (5xx)
  • Merging 2 records with different forms of name where it cannot be readily determined from the records that they are definitely one person
  • Creation of a new authority record

Types of proof

  • The works of the author are proof for establishing the correct form of name.
  • Preferable sources are those where the heading in question is shown on the title page.
  • Reference materials, e.g., national bibliographies, encyclopedias, organization member directories.
  • Web sites can be used as proof, in which case the change request can be sent via the Web form and does not need to be mailed or faxed.

Changes that do not require proof

Simple corrections to authority records do not require supporting documentation and can be submitted via Web form or e-mail. These changes include:

  • Incorrect assignment of tag or indicator values
  • Incorrect or missing subfield codes or fixed field element codes
  • Incorrect use of a field
  • Omission of required record elements or rule-based cross-references
  • Typos in headings or references when the correct form is found in a citation field (670)
  • Typos in citation fields

Creation of new records

OCLC creates new name authority records to resolve conflicts, rectify errors, or clarify heading relationships in the database.  OCLC does not act as a cataloging agency for routine creation of headings.

To request the creation of a new authority record, use the Authority File Change Request form and mark the box labeled Other.  Note the nature of your request and supply the following:

  • Main entry, title, and publication date of the work for the heading.
  • Photocopy of title page (or equivalent) and other pertinent information from the item (e.g., birth and death dates, variant forms of name).
  • Citations and photocopies of information from other sources consulted for data about the name, including reference works and phone calls to authors, publishers, or other agencies.
  • Information about previous, pre-AACR2 use of the heading, particularly in LC-MARC bibliographic records (field 040 c DLC).

Submit change requests

Changes not requiring proof

Request changes that do not require proof electronically using one of the following methods:

  • E-mail authority record change requests not requiring proof to: authfile@oclc.org.
  • While logged on via Connexion ® browser or client interface, display the authority record for which you are requesting a change. Then take the Report Error action.
  • Submit the Authority File Change Request form located on the OCLC Web site.

For more information, see the Instructions and Guidelines for Reporting WorldCat Bibliographic and Authority Record Changes or Duplicates.

Changes requiring proof

To request changes that require proof, complete the Authority File Change Request form.

For more information, see the Instructions and Guidelines for Reporting WorldCat Bibliographic and Authority Record Changes or Duplicates.

Tips on completing the request form

  • When you enter the control number to identify the authority record, use the Library of Congress control number (LCCN), with the prefix. The LCCN appears in field 010.
  • Do not send printouts or photocopies of authority records.  OCLC searches record change requests online before processing.

Note: OCLC cannot respond to every request it receives but will make every effort to assist its members with problems. If you need the answer to a question, please include your name, your library's OCLC symbol, and your e-mail address on the form.

OCLC reserves the right to process authority change requests at its discretion.

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