|First Indicator||Second Indicator|
|Type of meeting name entry element
0 - Inverted name
1 - Jurisdiction name
2 - Name in direct order
|111 - Undefined
# - Undefined
611 - Thesaurus
0 - Library of Congress Subject Headings
1 - LC subject headings for children's literature
2 - Medical Subject Headings
3 - National Agricultural Library subject authority file
4 - Source not specified
5 - Canadian Subject Headings
6 - Répertoire de vedettes-matière
7 - Source specified in subfield $2
711 - Type of added entry
# - No information provided
2 - Analytical entry
811 - Undefined
# - Undefined
Name and title portions
Subject subdivision portion
Subelements occurring in meeting name fields constructed according to the generally accepted cataloging and thesaurus-building rules (e.g., Anglo-American Cataloging Rules (AACR 2), Library of Congress Subject Headings (LCSH)). A named meeting that is entered under a corporate name is contained in the X10 fields. Corporate names that include such words as conference or congress are also contained in the X10 fields. For example, the Congress of Neurological Surgeons, a professional group, is a corporate name.
Guidelines for applying all content designators except the second indicator position are given in this section. A field-specific list of content designators and guidelines for applying the second indicator position are provided under the description for each specific X11 field.
First Indicator - Type of meeting name entry element
Value that identifies the form of the entry element of the field. The values distinguish among an inverted personal name, a jurisdiction name, and a meeting name in direct order used as the entry element.
Meeting name begins with a personal name in inverted order (surname, forename).
|711||0#$aSmith (David Nichol) Memorial Seminar.|
Meeting names beginning with a personal surname alone, a personal name in direct order (not inverted), or containing a personal name other than as the entry element are identified by value 2.
|111||2#$aSymposium Internacional "Manuel Pedroso" In Memoriam$d(1976 :$cGuanajuato, Mexico)|
Jurisdiction name under which a meeting name is entered.
|111||1#$aBayreuth, Ger. (City).$qFestspiele.|
Meeting names containing a jurisdiction name as an integral part of the name or qualified by a place name are identified by value 2.
|111||2#$aNation-wide Conference of the Women of Afghanistan$d(1980 :$cKabol, Afghanistan)|
|111||2#$aBrussels Hemoglobin Symposium$n(1st :$d1983)|
Meeting name is in direct order althought it may contain a parenthetical qualifier or may be an acronym or initialism.
|111||2#$aIASTED International Symposium$d(1982 :$cDavos, Switzerland)|
|111||2#$aSymposium (International) on Combustion.|
|111||2#$aGovernor's Conference on Aging (N.Y.)$d(1982 :$cAlbany, N.Y.)|
|711||2#$aTheatertreffen Berlin (Festival)|
|111||2#$aEsto '84$d(1984 :$cToronto, Ont).$eRaamatunäituse Komitee.|
|811||2#$aInternational Congress of Romance Linguistics and Philology$n(17th :$d1983 :$cAix-en-Provence, France).$tActes du XVIIème Congrès international de linguistique et philologie romanes ;$vvol. no. 5.|
|111||2#$aCongresso Brasileiro de Publicações$n(1st :$d1981 :$cSão Paulo, Brazil)|
Second indicator position is unique to the function of the meeting name field. It is described under 111 (Main Entry-Meeting Name); 611 (Subject Added Entry-Meeting Name); 711 (Added Entry-Meeting Name); and 811 (Series Added Entry-Meeting Name).
$a - Meeting name or jurisdiction name as entry element
Name of a meeting or a jurisdiction name under which a meeting is entered. Parenthetical qualifying information is not separately subfield coded. Meeting names are not entered under jurisdiction names in AACR 2 formulated X11 fields.
|111||2#$aInternational Conference on Numerical Methods in Geomechanics.|
|111||2#$aMilitary History Symposium (U.S.)$n(9th :$d1980 :$cUnited States Air Force Academy)|
$c - Location of meeting
Place name or a name of an institution where a meeting was held. Multiple adjacent locations are contained in a repeatable subfield $c.
|111||2#$aWorkshop on Primary Health Care$d(1983 :$cKavieng, Papua New Guinea)|
|711||2#$aConference on Philosophy and Its History$d(1983 :$cUniversity of Lancaster)|
|111||2#$aWinter Olympic Games$n(14th :$d1984 :$cSarajevo, Bosnia and Hercegovina)|
|111||2#$aWorld Peace Conference$n(1st :$d1949 :$cParis, France; $cPrague, Czechoslovakia)|
Place name added parenthetically to a meeting name to distinguish between identical names is not separately subfield coded.
|111||2#$aGovernor's Conference on Aging (N.Y.)|
$d - Date of meeting
|111||2#$aColloquio franco-italiano di Aosta$d(1982)|
|111||2#$aSymposium on Finite Element Methods in Geotechnical Engineering$d(1972 :$cVicksburg, Miss.)|
|111||2#$aInternational Institute on the Prevention and Treatment of Alcoholism$n(26th :$d1980 :$cCardiff, South Glamorgan)|
$e - Subordinate unit
Name of a subordinate unit entered under a meeting name.
|111||2#$aInternational Congress of Gerontology.$eSatellite Conference$d(1978 :$cSydney, N.S.W.)|
|711||2#$aStour Music Festival.$eOrchestra.|
|111||2#$aWhite House Conference on Library and Information Services$d(1979 :$cWashington, D.C.).$eOhio Conference Delegation.|
|711||2#$aOlympic Games$n(21st :$d1976 :$cMontréal, Québec).$eOrganizing Committee.$eArts and Culture Program.$eVisual Arts Section.|
$f - Date of a work
Date of publication used with a title of a work in a name/title field.
|711||22$aInternational Symposium on Standardization of Hematological Methods$d(1968 :$cMilan, Italy).$tProceedings.$f1970.|
Date added parenthetically to a meeting name to distinguish between identical names is not separately subfield coded.
|111||2#$aInternational Symposium on Quality Control (1974- )|
$g - Miscellaneous information
Data element that is not more appropriately contained in another defined subfield.
|111||2#$aNational Conference on Physical Measurement of the Disabled,$n2nd,$cMayo Clinic,$d1981,$gProjected, not held.|
$h - Medium [611/711/811]
Media qualifier used with a title of a work in a name/title field.
$i - Relationship information 
Designation of a relationship between the resource described in the 7XX field and the resource described in the 1XX/245 of the record. This may be an uncontrolled textual phrase or a controlled textual value from a list of relationships between bibliographic resources.
$j - Relator term
Describes the relationship between a name and a work.
|611||20$aStour Music Festival.$bOrchestra,$jdepicted.|
$k - Form subheading
Form subheading used with a title of a work in a title field. The term Selections is a form subheading used with meeting names.
|711||22$aCouncil of Trent$d(1545-1563).$tCanones et decreta.$lEnglish.$kSelections.$f1912.|
$l - Language of a work
Name of a language(s) (or a term representing the language, e.g., Polyglot) of a work in a name/title field.
|711||22$aConferencia General del Episcopado Latinoamericano$n(3rd :$d1979 :$cPueblo, Mexico).$tEvangelización en el presente y en el futuro de América Latina.$lEnglish.$f1979.|
$n - Number of part/section/meeting
Number of a meeting.
In music uniform titles, the serial, opus, or thematic index number, or a date used to distinguish one work from another, is contained in subfield $n.
Multiple alternative numberings (often separated by a comma) are contained in a single subfield $n. Multiple numberings that are hierarchical (often separated by a period) are contained in separate occurrences of subfield $n.
|711||2#$aAsian Games$n(9th :$d1982 :$cDelhi, India)|
$p - Name of part/section of a work
Name designation of a part/section of a work in a name/title field.
|711||2#$aInternational Conference on Gnosticism$d(1978 :$cNew Haven, Conn.).$tRediscovery of Gnosticism.$pModern writers.|
|711||2#$aConference on the Limitation of Armament$d(1921-1922 :$cWashington, D.C.).$tWashington Kaigi keika.$n1.$pGunbi seigen ni kansuru mondai.|
$q - Name of meeting following jurisdiction name entry element
Meeting name that is entered under a jurisdiction name contained in subfield $a.
|111||1#$aParis.$qSalon (Société des artistes français)|
$s - Version [611/711/811]
Version, edition, etc., information added to a title of a work in a name/title field. This subfield code is defined for consistency in the 1XX fields. Subfield $s is unlikely to be used in an X11 field.
$t - Title of a work
Uniform title, a title page title of a work, or a series title used in a name/title field.
|611||20$aVatican Council$n(2nd :$d1962-1965).$tDecretum de presbyterorum ministerio et vita.|
Additional examples are under the descriptions of subfields $f, $k, $l, $p, and $v.
$u - Affiliation
Affiliation or address of the name in subfield $a.
$v - Volume/sequential designation 
Volume number or other sequential designation used in conjunction with an 811 series added entry.
|811||2#$aConference of Latin Americanist Geographers.$tPublication series ;$vv. 1.|
$v - Form subdivision 
Form subdivision that designates a specific kind or genre of material as defined by the thesaurus being used. Subfield $v is appropriate only when a form subject subdivision is added to a meeting name or name/title heading to form an extended subject heading. Subfield $v is used for form terms when they function as indicated above. Subfield $x may be used if the terms function as general subdivisions. A form subdivision in subfield $v is generally the last subfield in the field. The subfield may be repeated if more than one form subdivision is used.
|611||20$aPurdue Pest Control Conference$vPeriodicals.|
|611||20$aInternational Congress of Writers for the Defence of Culture$n(1st :$d1935 :$cParis, France)$vFiction.|
$w - Bibliographic record control number 
$x - International Standard Serial Number [711/811]
ISSN for a serial contained in the title portion of a name/title field. The ISSN is an agency-assigned data element. ISSNs are assigned to serial publications by national centers under the auspices of the ISSN Network.
$x - General subdivision 
Subject subdivision that is not more appropriately contained in subfield $v (Form subdivision), subfield $y (Chronological subdivision), or subfield $z (Geographic subdivision). Subfield $x is appropriate only when a general topical subdivision is added to a meeting name or a name/title heading.
|611||20$aTour de France (Bicycle race)$xHistory.|
$y - Chronological subdivision 
Subject subdivision that represents a period of time. Subfield $y is appropriate only when a chronological subject subdivision is added to a meeting name or name/title.
|611||20$aDerby (Horse race)$xHistory$y20th century.|
$z - Geographic subdivision 
Appropriate only when a geographic subject subdivision is added to a meeting name or name/title.
$0 - Authority record control number or standard number
$2 - Source of heading or term 
MARC code that identifies the source list from which the heading in a 611 subject added entry field was assigned. It is used only when the second indicator position contains value 7 (Source specified in subfield $2). Code from: Subject Heading and Term Source Codes.
$3 - Materials specified [611/711/811]
Part of the described materials to which the field applies.
$4 - Relator code
MARC code that specifies the relationship between a name and a work. More than one relator code may be used if the meeting has more than one function. Code from: MARC Code List for Relators. The code is given after the name portion in name/title fields.
|111||2#$aSymposium on the Underground Disposal of Radioactive Wastes$d(1979:$cOtaniemi, Finland)$4fnd|
$5 - Institution to which field applies [711/811]
$6 - Linkage
$7 - Control subfield 
Up to two character positions (designated 0 and 1) that indicate special characteristics of the linked entry. Because the definitions of the codes in subfield $7 are dependent on the character position in which they occur, the coding of any character position mandates that each preceding character position contains a code or the fill character (|); succeeding character positions need not be used.
Code indicating the type of record for the related item. The code is the same as the code in Leader/06 (Type of record) in the record for the related item.
|d||Manuscript notated music|
|f||Manuscript cartographic material|
|i||Nonmusical sound recording|
|j||Musical sound recording|
|k||Two-dimensional nonprojectable graphic|
|r||Three-dimensional artifact or naturally occurring object|
|t||Manuscript language material|
Code indicating the bibliographic level of the related item. The code is the same as that in Leader/07 (Bibliographic level) in the record for the related item.
|a||Monographic component part|
|b||Serial component part|
$8 - Field link and sequence number
Ambiguous Headings - See Appendix E: Ambiguous Headings.
Punctuation - Punctuation of the subelements of a heading is generally dictated by descriptive cataloging or subject heading system/thesaurus rules. These input conventions clarify MARC punctuation practices. Fields 111, 611, 711, and 811 end with a mark of punctuation or a closing parenthesis. If the final subfields are subfield $0, $2, $3, $4, or $5, the mark of punctuation or closing parenthesis precedes those subfields.
|711||2#$aConvegno Santa Caterina in Finalborgo$n(1980 :$cCivico museo del Finale)|
|111||2#$aSymposium on the Underground Disposal of Radioactive Wastes$d(1979 :$cOtaniemi, Finland)$4fnd|
Name portion of a name/subordinate body or name/title heading ends with a mark of punctuation. The mark of punctuation is placed inside a closing quotation mark.
|711||2#$aInternational Congress of the History of Art$n(24th :$d1979 :$cBologna, Italy).$tAtti del XXIV Congresso internazionale di storia dell'arte.|
Name or title portion followed by a subject subdivision does not end with a mark of punctuation unless the name or title portion ends with an abbreviation, initial/letter, or open date.
|611||20$aVatican Council$n(2nd :$d1962-1965).$tActa synodalia Sacrosancti Concilii Oecumenici Vaticani II$vIndexes.|
|611||20$aCouncil of Constantinople$n(1st :$d381)$xHistory.|
Spacing - No spaces are used in initialisms or personal name initials/letters.
|111||2#$aJ.J. Sylvester Symposium on Algebraic Geometry$d(1976 :$cJohns Hopkins University)|
|111||2#$aWoman's Rights Convention$n(1st :$d1848 :$cSeneca Falls, N.Y.)|
|111||2#$aOlympic Games$n(22nd :$d1980 :$cMoscow, R.S.F.S.R.)|
|711||2#$aInternational SEG Meeting.|
One space is used between preceding and succeeding initials if an abbreviation consists of more than a single letter.
|111||2#$aPh. D. in Music Symposium$d(1985 :$cBoulder, Colo.)|
Initial Articles - Initial articles (e.g., Het) occurring at the beginning of name heading fields are usually omitted in most languages (except when the intent is to file on the article).
|111||2#$aLas Vegas Conference of Casino Owners$d(1985 :$cLas Vegas, Nev.)|
Initial articles occurring at the beginning of the title and/or part portion of a name/title added entry (i.e. 611, 711, 811) are also omitted. Any diacritics and/or special characters occurring at the beginning of a field are retained. Note that such characters are usually ignored for purposes of sorting and filing.
Values were: 0 (Main entry/subject relationship irrelevant), 1 (Main entry is subject).
Definition of subfield $n was expanded to include meeting numbers and subfield $b was made obsolete.
In 2014, subfield $c was made repeatable.
In 2014, subfield $g was made repeatable.
In 1979, subfield $n was defined for numbers of parts/sections and subfield $p (Part) was redefined to include only names of parts/sections. Prior to that change, both the number and the name of a part were contained in one subfield $p.
Name of a meeting entered under a jurisdiction name was not separately subfield coded prior to the definition of subfield $q in 1972. At the same time, subfield $a was expanded to include a jurisdiction name as entry element.