LC Guidelines
Supplement to the MARC 21 Format for Authority Data
The LC Guidelines for authority records are issued with and intended to be used in conjunction with the MARC 21 Format for Authority Data. Each guideline contains instructions in the use of the specific field or character position for (1) creating authority records to be added to the Library of Congress authority files by NACO and SACO participants; and, (2) institutions that need or want to know special LC practices in authority records.
Select a field or character position from the list below to access its LC Guidelines:
Direction
for use of LC Guidelines
Leader/09 Character coding scheme
005 Date and Time of Latest Transaction
008/00-05 Date entered on file
008/06 Direct or indirect geographic subdivision
008/10 Descriptive cataloging rules
008/11 Subject heading system/thesaurus
008/13 Numbered or unnumbered series
008/14 Heading use - main or added entry
008/15 Heading use - subject added entry
008/16 Heading use - series added entry
008/17 Type of subject subdivision
008/28 Type of government agency
008/31 Record update in process
008/32 Undifferentiated personal name
010 Library of Congress Control Number
014 Link to Bibliographic Record for Serial or Multipart Item
016 National Bibliographic Agency Control Number
020 International Standard Book Number
022 International Standard Serial Number
031 Musical Incipits Information
034 Coded Cartographic Mathematical Data
050 Library of Congress Call Number
055 Library and Archives Canada Call Number
060 National Library of Medicine Call Number
065 Other Classification Number
070 National Agricultural Library Call Number
080 Universal Decimal Classification Number
083 Dewey Decimal Classification Number
086 Government Document Call Number
087 Government Document Classification Number
148 Heading - Chronological Term
162 Heading - Medium of Performance Term
180 Heading - General Subdivision
181 Heading - Geographic Subdivision
182 Heading - Chronological Subdivision
185 Heading - Form Subdivision
260 Complex See Reference - Subject
360 Complex See Also Reference - Subject
368 Other Attributes of Person or Corporate Body
378 Fuller Form of Personal Name
381 Other Distinguishing Characteristics of Work or Expression
383 Numeric Designation of Musical Work
386 Creator/Contributor Characteristics
Tracings and References - 4XX Fields [General Information]
400 See From Tracing - Personal Name
410 See From Tracing - Corporate Name
411 See From Tracing - Meeting Name
430 See From Tracing - Uniform Title
447 See From Tracing - Named Event
448 See From Tracing - Chronological Term
450 See From Tracing - Topical Term
451 See From Tracing - Geographic Name
455 See From Tracing - Genre/Form Term
462 See From Tracing - Medium of Performance Term
480 See From Tracing - General Subdivision
481 See From Tracing - Geographic Subdivision
482 See From Tracing - Chronological Subdivision
485 See From Tracing - Form Subdivision
Tracings and References - 5XX Fields [General Information]
500 See Also From Tracing - Personal Name
510 See Also From Tracing - Corporate Name
511 See Also From Tracing - Meeting Name
530 See Also From Tracing - Uniform Title
547 See Also From Tracing - Named Event
548 See Also From Tracing - Chronological Term
550 See Also From Tracing - Topical Term
551 See Also From Tracing - Geographic Name
555 See Also From Tracing - Genre/Form Term
562 See Also From Tracing - Medium of Performance Term
580 See Also From Tracing - General Subdivision
581 See Also From Tracing - Geographic Subdivision
582 See Also From Tracing - Chronological Subdivision
585 See Also From Tracing - Form Subdivision
640 Series Dates of Publication and/or Sequential Designation
641 Series Numbering Peculiarities
643 Series Place and Publisher/Issuing Body
646 Series Classification Practice
663 Complex See Also Reference - Name
664 Complex See Reference - Name
666 General Explanatory Reference - Name
672 Title Related to the Entity
673 Title Not Related to the Entity
678 Biographical or Historical Data
681 Subject Example Tracing Note
682 Deleted Heading Information
700 Established Heading Linking Entry - Personal Name
710 Established Heading Linking Entry - Corporate Name
711 Established Heading Linking Entry - Meeting Name
730 Established Heading Linking Entry - Uniform Title
747 Established Heading Linking Entry - Named Event
748 Established Heading Linking Entry - Chronological Term
750 Established Heading Linking Entry - Topical Term
751 Established Heading Linking Entry - Geographic Name
755 Established Heading Linking Entry - Genre/Form Term
762 Established Heading Linking Entry - Medium of Performance Term
780 Subdivision Linking Entry - General Subdivision
781 Subdivision Linking Entry - Geographic Subdivision
782 Subdivision Linking Entry - Chronological Subdivision
785 Subdivision Linking Entry - Form Subdivision
788 Complex Linking Entry Data
856 Electronic Location and Access
880 Alternate Graphic Representation
883 Machine-generated Metadata Provenance
884 Description Conversion Information
Appendix. Implementing Changes in the MARC 21 Authority Format
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