Tag List: Authority

There are 999 possible MARC tags, many of which have been established by the Library of Congress as fields in the various MARC formats. The following lists each possible tag and, where applicable, its assigned usage in the Authority Data Format.

The Tag List groups the Variable Control Fields and Variable Data Fields . The Variable Data Fields are subgrouped as follows:

Note: Generally, any field containing a "9" (e.g., 049, 910, etc.) is available for local use, such as local call numbers, holdings, or subject headings. Check with your system vendor for further information.

Leader and Directory:

Leader

Directory

Variable Control Fields:

001 Control Number (NR)

002 unassigned

003 Control Number Identifier (NR)

004 unassigned

005 Date and Time of Latest Transaction (NR)

006 unassigned

007 unassigned

008 Fixed-Length Data Elements (NR)

009 unassigned

Variable Data Fields:

Numbers and Codes:

010 Library of Congress Control Number (NR)

011 - 013 unassigned

014 Link to Bibliographic Record for Serial or Multipart Item (R)

015 unassigned

016 National Bibliographic Agency Control Number (R)

017 - 019 unassigned

020 International Standard Book Number (R)

021 unassigned

022 International Standard Serial Number (R)

023 - 034 unassigned

035 System Control Number (R)

036 - 039 unassigned

040 Cataloging Source (NR)

041 unassigned

042 Authentication Code (NR)

043 Geographic Area Code (NR)

044 unassigned

045 Time Period of Heading (NR)

046 - 049 unassigned

050 Library of Congress Call Number (R)

051 unassigned

052 Geographic Classification (R)

053 LC Classification Number (R)

054 unassigned

055 National Library of Canada Call Number (R)

056 - 057 unassigned

058 LC Classification Number Assigned in Canada [obsolete] [CAN/MARC only]

059 unassigned

060 National Library of Medicine Call Number (R)

061 - 062 unassigned

063 NLM Classification Number Assigned by NLM [obsolete] [CAN/MARC only]

064 - 065 unassigned

066 Character Sets Present (NR)

067 unassigned

068 NLM Classification Number Assigned in Canada [obsolete] [CAN/MARC only]

069 unassigned

070 National Agricultural Library Call Number (R)

071 unassigned

072 Subject Category Code (R)

073 Subdivision Usage (NR)

074 - 081 unassigned

082 Dewey Decimal Call Number (R)

083 Dewey Decimal Classification Number (R)

084 - 085 unassigned

086 Government Document Call Number (R)

087 Government Document Classification Number (R)

088 Document Shelving Number (CODOC) [obsolete] [CAN/MARC only]

089 unassigned

09X Local Call Numbers

Headings:

100 Heading - Personal Name (NR)

101 - 109 unassigned

110 Heading - Corporate Name (NR)

111 Heading - Meeting Name (NR)

112 - 129 unassigned

130 Heading - Uniform Title (NR)

131 - 139 unassigned

140 Uniform Title [obsolete] [CAN/MARC only]

141 - 142 unassigned

143 Collective Title [obsolete] [CAN/MARC only]

144 - 149 unassigned

150 Heading - Topical Term (NR)

151 Heading - Geographic Name (NR)

152 - 154 unassigned

155 Heading - Genre/Form Term (NR)

156 - 179 unassigned

180 Heading - General Subdivision (NR)

181 Heading - Geographic Subdivision (NR)

182 Heading - Chronological Subdivision (NR)

183 - 184 unassigned

185 Heading - Form Subdivision (NR)

186 - 199 unassigned

Complex Subject References:

200 - 259 unassigned

260 Complex See Reference - Subject (R)

261 - 299 unassigned

300 - 359 unassigned

360 Complex See Also Reference - Subject (R)

361 - 399 unassigned

See From Tracings:

400 See From Tracing - Personal Name (R)

401 - 409 unassigned

410 See From Tracing - Corporate Name (R)

411 See From Tracing - Meeting Name (R)

412 - 429 unassigned

430 See From Tracing - Uniform Title (R)

431 - 449 unassigned

450 See From Tracing - Topical Term (R)

451 See From Tracing - Geographic Name (R)

452 - 454 unassigned

455 See From Tracing - Genre/Form Term (R)

456 - 479 unassigned

480 See From Tracing - General Subdivision (R)

481 See From Tracing - Geographic Subdivision (R)

482 See From Tracing - Chronological Subdivision (R)

483 - 484 unassigned

485 See From Tracing - Form Subdivision (R)

486 - 499 unassigned

See Also From Tracings:

500 See Also From Tracing - Personal Name (R)

501 - 509 unassigned

510 See Also From Tracing - Corporate Name (R)

511 See Also From Tracing - Meeting Name (R)

512 - 529 unassigned

530 See Also From Tracing - Uniform Title (R)

531 - 549 unassigned

550 See Also From Tracing - Topical Term (R)

551 See Also From Tracing - Geographic Name (R)

552 - 554 unassigned

555 See Also From Tracing - Genre/Form Term (R)

556 - 579 unassigned

580 See Also From Tracing - General Subdivision (R)

581 See Also From Tracing - Geographic Subdivision (R)

582 See Also From Tracing - Chronological Subdivision (R)

583 - 584 unassigned

585 See Also From Tracing - Form Subdivision (R)

586 - 599 unassigned

600 - 639 unassigned

Series Treatment:

640 Series Dates of Publication and/or Sequential Designation (R)

641 Series Numbering Peculiarities (R)

642 Series Numbering Example (R)

643 Series Place and Publisher/Issuing Body (R)

644 Series Analysis Practice (R)

645 Series Tracing Practice (R)

646 Series Classification Practice (R)

647 - 649 unassigned

650 - 662 unassigned

Complex Name References:

663 Complex See Also Reference - Name (NR)

664 Complex See Reference - Name (NR)

665 History Reference (NR)

666 General Explanatory Reference - Name (NR)

Notes:

667 Nonpublic General Note (R)

668 - 669 unassigned

670 Source Data Found (R)

671 Note - Work Catalogued (Names/Titles) [obsolete] [CAN/MARC only]

672 - 674 unassigned

675 Source Data Not Found (NR)

676 Note - Cataloging Rules (Names/Titles) [obsolete] [CAN/MARC only]

677 unassigned

678 Biographical or Historical Data (R)

679 unassigned

680 Public General Note (R)

681 Subject Example Tracing Note (R)

682 Deleted Heading Information (NR)

683 - 684 unassigned

685 Note - Source Data Found (Subjects) [obsolete] [CAN/MARC only]

686 Note - Source Data Not Found (Subjects) [obsolete] [CAN/MARC only]

687 Note - Usage (Subjects) [obsolete] [CAN/MARC only]

688 Application History Note (R)

689 - 699 unassigned

Heading Linking Entries:

700 Established Heading Linking Entry - Personal Name (R)

701 - 709 unassigned

710 Established Heading Linking Entry - Corporate Name (R)

711 Established Heading Linking Entry - Meeting Name (R)

712 - 729 unassigned

730 Established Heading Linking Entry - Uniform Title (R)

731 - 749 unassigned

750 Established Heading Linking Entry - Topical Term (R)

751 Established Heading Linking Entry - Geographic Name (R)

752 - 754 unassigned

755 Established Heading Linking Entry - Genre/Form Term (R)

756 - 779 unassigned

780 Subdivision Linking Entry - General Subdivision (R)

781 Subdivision Linking Entry - Geographic Subdivision (R)

782 Subdivision Linking Entry - Chronological Subdivision (R)

783 - 784 unassigned

785 Subdivision Linking Entry - Form Subdivision (R)

786 - 787 unassigned

788 Complex Linking Entry Data (NR)

789 - 799 unassigned

Location and Alternate Graphics:

800 - 879 unassigned

856 Electronic Location and Access (R)

880 Alternate Graphic Representation (R)

881 - 899 unassigned

Locally Defined Fields:

9XX Local Implementation

9XX - Equivalent Headings [obsolete, 1997] [CAN/MARC only]

See also:

Variable Control Fields

Variable Data Fields

MARC 21 Format for Authority Data: Contents