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Authorities: Format and Indexes

Comments? Abstract & revision notes PDF Introduction Authority record format: fixed-field elements Authority record format: tag groups Authority record format: variable fields Indexes and indexed fields Authority record change requests OCLC glossary

Authorities: Format and Indexes

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 on the OCLC web site at:

Bibliographic records. For comprehensive information about WorldCat bibliographic records, see OCLC Bibliographic Formats and Standards, available at:
http://www.oclc.org/bibformats/en/default.shtm

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Superseded documentation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.

Availability
Authorities: Format and Indexes is available on the OCLC Web site, in PDF or HTML format, at the following location.
http://www.oclc.org/support/documentation/worldcat/authorities/authformat/default.htm.

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. The OCLC web site provides details on Terminologies at: http://www.oclc.org/terminologies/about/default.htm.

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, 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
Search	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
Limited	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 at http://www.loc.gov/catdir/pcc/. 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 at: http://www.oclc.org/support/documentation/catexpress/using/guide/1introduction/chap1.htm#cx-overview.

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

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 (yyyymmdd)	Date record was entered
Geo subd: 008/06		Direct/indirect geographic subdivision code	Indicates whether the 1xx heading can be subdivided geographically
		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 ().
		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
		No attempt to code
Mod rec: 008/38		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
		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.
		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

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 ( ) 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:

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
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

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.

For additional information, see:

MARC 21 Format for Authority Data at http://www.loc.gov/marc/authority/
Library of Congress Authorities at http://authorities.loc.gov/

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.

The OCLC web site provides details on Terminologies at: http://www.oclc.org/terminologies/about/default.htm.

Tag	Ind 1	Ind 2	Subfield	Name	Comment
010				Library of Congress Control Number (NR)
				Undefined
			‡a	LC control number (NR)
			‡z	Canceled/invalid LC control number (R)
016				National Bibliographic Agency Control Number (R)
				Library and Archives Canada
	7			Agency identified in subfield ‡2
				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
				Undefined
			‡a	ISBN (NR)
			‡c	Terms of availability (NR)
			‡z	Canceled/invalid ISBN (R)
022				International Standard Serial Number (ISSN) (R)	Contains the ISSN associated with a series heading
				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
				Undefined
			‡a	Standard Number or Code (NR)
			‡c	Terms of availability (NR)
			‡d	Additional codes following the standard number or code (NR)
			‡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
				Undefined
				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)
				Undefined
				Type of Ring
				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)
			‡2	Source (R)


035				System Control Number (R)	The number is preceded by the agency's MARC Organization Code (in parentheses)
				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.
				Undefined
			‡a	Original cataloging agency (NR)
			‡b	Language of cataloging (NR)
			‡c	Transcribing agency (NR)
			‡d	Modifying agency (R)
042				Authentication Code (NR)	Contains one or more authentication codes assigned by centers that review and upgrade an authority record
				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
				Undefined
			‡a	Geographic area code (R)
			‡b	Local GAC code (R)
			‡2	Source of local code (R)
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.
				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)
052				Geographic Classification Code (R)
				Library of Congress Classification
				Undefined
			‡a	Geographic classification area code (NR)
			‡b	Geographic classification subarea code (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
				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)
				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)
				Undefined
			‡a	Classification number (NR)
			‡b	Item number (NR)
			‡d	Volumes/dates to which call number applies (NR)
073				Subdivision Usage (NR)
				Undefined
			‡a	Subdivision usage (R)
			‡z	Source (NR)
082				Dewey Decimal Call Number (R)
	0			Full
	1			Abridged
				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
		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)
				Source specified in subfield ‡2
	0			Superintendent of Documents Classification System
	1			Government of Canada Publications: Outline of Classification
				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)
				Source specified in subfield ‡2
	0			Superintendent of Documents Classification System
	1			Government of Canada Publications: Outline of Classification
				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)
				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.
				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
				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
				Undefined
			‡a	Corporate name or jurisdiction name as entry element (NR)
			‡b	Subordinate unit (R)
			‡c	Location of meeting (NR)
			‡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
				Undefined
			‡a	Meeting name or jurisdiction name as entry element (NR)
			‡c	Location of meeting (NR)
			‡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)
				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)
				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)
				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)
				Undefined
			‡a	Genre/form term (NR)
			‡v	Form subdivision (R)
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
180				Heading–General Subdivision (NR)	Contains a topical subdivision or reference per coding in Auth/Ref (008/09)
				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)
				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)
				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)
				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.
				Undefined
			‡a	Heading referred to (R)
			‡i	Explanatory text (R)
			‡0	Authority Record Control Number (R)
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.
				Undefined
			‡a	Heading referred to (R)
			‡i	Explanatory text (R)
			‡0	Authority Record Control Number (R)
400				See From Tracing–Personal Name (R)	Contains the tracing for a referred-from personal name
	0			Forename
	1			Surname
	3			Family name
				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 (R)
			‡t	Title of a work (NR)
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (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
				Undefined
			‡a	Corporate name or jurisdiction name as entry element (NR)
			‡b	Subordinate unit (R)
			‡c	Location of meeting (NR)
			‡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)
			‡w	Control subfield (NR)
			‡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
				Undefined
			‡a	Meeting name or jurisdiction name as entry element (NR)
			‡c	Location of meeting (NR)
			‡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)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
430				See From Tracing–Uniform Title (R)	Contains the tracing for the referred-from title
				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 17 (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
				Undefined
			‡a	Topical term or geographic name as entry element (NR)
			‡b	Topical term following geographic name as entry element (NR)
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
451				See From Tracing–Geographic Name (R)	Contains the tracing for a referred-from geographic name
				Undefined
			‡a	Geographic name (NR)
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (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
				Undefined
			‡a	Genre/form term (NR)
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
480				See From Tracing–General Subdivision (R)	Contains the tracing for a referred-from general subdivision
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
481				See From Tracing–Geographic Subdivision (R)	Contains the tracing for a referred-from geographic subdivision
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
482				See From Tracing–Chronological Subdivision (R)	Contains the tracing for a referred-from chronological subdivision
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
485				See From Tracing–Form Subdivision (R)	Contains the tracing for a referred-from form subdivision
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (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
				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)
			‡w	Control subfield (NR)	See page 17 (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
				Undefined
			‡a	Corporate name or jurisdiction name as entry element (NR)
			‡b	Subordinate unit (R)
			‡c	Location of meeting (NR)
			‡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)
			‡w	Control subfield (NR)	See page 17 (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
				Undefined
			‡a	Meeting name or jurisdiction name as entry element (NR)
			‡c	Location of meeting (NR)
			‡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 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 17 (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
				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)
			‡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
				Undefined
			‡a	Topical term or geographic name as entry element (NR)
			‡b	Topical term following geographic name as entry element (NR)
			‡i	Reference instruction phrase (NR)
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
551				See Also From Tracing–Geographic Name (R)	Contains the tracing for a geographic name used as a see-also reference
				Undefined
			‡a	Geographic name (NR)
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (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
				Undefined
			‡a	Genre/form term (NR)
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
580				See Also From Tracing–General Subdivision (R)	Contains the tracing for a general subdivision used as a see-also reference
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
581				See Also From Tracing–Geographic Subdivision (R)	Contains the tracing for a geographic subdivision used as a see-also reference
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
582				See Also From Tracing–Chronological Subdivision (R)	Contains the tracing for a chronological subdivision used as a see-also reference
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (R)
585				See Also From Tracing–Form Subdivision (R)	Contains the tracing for a genre term subdivision used as a see-also reference
				Undefined
			‡v	Form subdivision (R)
			‡w	Control subfield (NR)	See page 17 (in section 3) for details.
			‡x	General subdivision (R)
			‡y	Chronological subdivision (R)
			‡z	Geographic subdivision (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
				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
				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
				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
				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
				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
				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
				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
				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
				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.)
				Undefined
			‡a	History reference (R)
666				General Explanatory Reference–Name (NR)	Contains information relating to searching and filing arrangement. Used only in reference records
				Undefined
			‡a	General explanatory reference (R)
667				Nonpublic General Note (R)	Contains a permanent or temporary note not intended for public display
				Undefined
			‡a	Nonpublic general note (NR)
670				Source Data Found (R)	Contains a citation of source in which information about the heading was found
				Undefined
			‡a	Source citation (NR)
			‡b	Information found (NR)
			‡u	Uniform Resource Identifier (R)
675				Source Data Not Found (NR)	Contains citations of sources which provided no information about the heading
				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
				No information provided
	0			Biographical sketch
	1			Administrative history
				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
				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)
				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).

			‡a	Replacement heading (R)
			‡i	Explanatory text (R)
690				Local Note (R) Note: OCLC defined.	Field not retained in the master record.
				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 17 (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 (NR)
			‡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 17 (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 (NR)
			‡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 17 (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.
				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 17 (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.
				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 17 (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)

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.
				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.
	, 0–9			Locally defined
		, 0–9		Locally defined
			‡a–z	Locally defined (R)
952				Cataloger's Notes (R)	Note: OCLC defined Fields do not remain in master record.
				Undefined
			‡a	Cataloger's notes (NR)
Ind = Indicator; R = Repeatable; NR = Nonrepeatable; = Blank

Indexes and indexed fields

About authority file indexing

The same 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)
Personal Names (pn:)	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
LC Names (nw:) (n* -prefixed LCCNs only) [1]	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
Geographic Names (gg:)	181, 481, 581, 781	v x y z 781: z only	Not applicable
Musical Incipits (mi:) (Browse only)	031	Not indexed for searching	p
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]	100, 400, 500, 700	a b c d e f h j k l m n o p q r s 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 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 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
	155, 455, 555, 755	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:)	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, or nr). [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, or nr).

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
	155, 455, 555, 755	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 yz
	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

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 or sj.

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 Web form located on the OCLC Web site at: https://www3.oclc.org/app/authrec/

Or submit a printed request:

Complete the Authority File Change Request form provided (in PDF format) online at:
http://www.oclc.org/support/forms/pdf/autfil.pdf
You can complete the form online and then print it. Or print the form and then complete it.
Fax the Change Request form toll-free to: 1-866-709-6252 (Note: This fax number works only within the United States.)
or
Mail the Change Request form to:

	OCLC Online Computer Library Center
	WorldCat Content Management
	Quality Control Section MC139
	6565 Kilgour Place (formerly Frantz Road)
	Dublin, OH 43017-3395

Changes requiring proof

To request changes that require proof:

Complete the Authority File Change Request form provided (in PDF format) online at:
http://www.oclc.org/support/forms/pdf/autfil.pdf
You can complete the form online and then print it. Or print the form and then complete it.
Fax the Change Request form toll-free to: 1-866-709-6252 (Note: This fax number works only within the United States.)
or
Mail the Change Request form to:

	OCLC Online Computer Library Center
	WorldCat Content Management
	Quality Control Section MC139
	6565 Kilgour Place (formerly Frantz Road)
	Dublin, OH 43017-3395

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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