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 on the OCLC web site at:

• http://www.oclc.org/support/documentation/connexion/browser/default.htm
• http://www.oclc.org/support/documentation/connexion/client/default.htm

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

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Superseded documentation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.

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

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.

Definitions: edit and replace master records versus edit records locally

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:

back to top

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
		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 component 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

back to top

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).

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.

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

back to top

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.
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
			‡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 latitude (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)
				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)
			‡e	Description conventions (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)
			‡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.
				Undefined
			‡f	Birth date (NR)
			‡g	Death date (NR)
			‡k	Beginning or single date created (NR)
			‡l	Ending date created (NR)
			‡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.
				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
				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)
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.
				No information provided
	0			Full
	1			Abridged
				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
				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)
				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	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.
				Undefined
			‡a	Content type term (R)
			‡b	Content type code (R)
			‡0	Authority record control number or standard number (R)
			‡2	Source (NR)
			‡3	Materials specified (NR)
348				Format of Notated Music (R)	The musical or physical layout of the content of a resource that is presented in the form of musical notation.
				Undefined
			‡a	Format of notated music term (R)
			‡b	Format of notated music code (R)
			‡0	Authority record control number or standard number (R)
			‡2	Source of term (NR)
			‡3	Materials specified (NR)
			‡8	Field link and sequence 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	Record control number (R)
368				Other Corporate Body Attributes (R)
				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.
				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.
				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.
				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..
				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.
				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.
				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.
				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.
				Undefined
				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.
				Undefined
			‡q	Fuller form of personal name (NR)
			‡u	Uniform resource identifier (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.
				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.
				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.
				No information provided
	0			Medium of performance
	1			Partial medium of performance
				Undefined
			‡a	Medium of performance (R)
			‡b	Soloist (R)
			‡d	Doubling instrument (R)
			‡e	Number of ensembles of the same type (R)
			‡n	Number of performers of the same medium (R)
			‡p	Alternative medium of performance (R)
			‡r	Total number of individuals performing alongside ensembles (NR)
			‡s	Total number of performers (R)
			‡t	Total number of ensembles (NR)
			‡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.
				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 center for a musical work or expression. May be used to differentiate a musical work or expression from another with the same title.
				Relationship to original unknown
	0			Original key
	1			Transposed key
				Undefined
			‡a	Key (NR)
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)
			‡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
				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)
			‡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
				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)
			‡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
				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
				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
				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
				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)
480				See From Tracing–General Subdivision (R)	Contains the tracing for a referred-from general subdivision
				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
				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
				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
				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
				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
				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)
			‡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
				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)
			‡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
				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
				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
				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
				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)
580				See Also From Tracing–General Subdivision (R)	Contains the tracing for a general subdivision used as a see-also reference
				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
				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
				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
				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 series
	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)	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.
				Undefined
			‡a	Source citation (NR)
			‡b	Information found (NR)
			‡u	Uniform Resource Identifier (R)
			‡w	Bibliographic record control number (R)
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.
				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 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	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 (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 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 (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 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.
				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.
				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)
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		333 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