anuc

Australian National Union Catalog:  Code anuc signifies that the descriptive elements have been edited and all headings verified against the relevant authority file to prepare the record for inclusion in the Australian National Bibliographic Database.  The Australian National Bibliographic Database authenticates records for Australian imprints, and bibliographic and authority records of Australian interest.

croatica

Croatian National Bibliography:  Code croatica signifies that the descriptive elements have been edited and all headings were verified against the relevant authority file to prepare the record for inclusion in the Croatian National Bibliography.

cyac

Library of Congress Children's and Young Adults' Cataloging Program:  Code cyac signifies that the cataloging was done as part of the Library of Congress Children's and Young Adults' Cataloging Program (formerly called the Library of Congress Annotated Card Program) whereby summaries and children's subject headings are added to facilitate discovery of a resource by a juvenile audience.

dc

Dublin Core:  Code dc signifies that the record was converted from a simple resource description record in another syntax (e.g., HTML or SGML) using the Dublin Core metadata element set.  The content of the record (descriptive elements and headings) may or may not follow any cataloging standards (e.g., AACR2, ISBD).

dhca

Dance Heritage Coalition Access Project:  Code dhca signifies that the record was authenticated under the auspices of the Dance Heritage Coalition Access Project.

dlr

Digital library registry:  Code dlr signifies that the record was authenticated under the auspices of a digital library registry.

finb

Finnish National Bibliography:  code finb signifies that the record is part of the Finnish National Bibliography.

finbd

Finnish National Discography:  code finbd signifies that the record is part of the Finnish National Discography.

gamma

Georgia Archives & Manuscripts Automated Access Project:  Code gamma signifies that the record was authenticated under the auspices of the Georgia Archives & Manuscripts Automated Access Project, coordinated by the University Center in Georgia.

gils

Government Information Location Service:  Code gils signifies that the record has been derived from a locator record contained in a GILS server using the GILS Application Profile.  The content of the record (descriptive elements and headings) may or may not follow any cataloging standards (e.g., AACR2, ISBD).

gnd1

GND authenticated by curation team of a library network:  Code gnd1 signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it was authenticated by a curation team of a library network.

gnd2

GND authenticated by a local curation team:  Code gnd2 signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it was authenticated by a local curation team.

gnd3

GND authenticated by trained users:  Code gnd3 signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it was authenticated by trained users.

gnd4

GND authenticated by untrained users:  Code gnd4 signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it was authenticated by untrained users.

gnd5

GND authenticated by other non-librarian users:  Code gnd5 signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it was authenticated by other non-librarian users.

gnd6

GND legacy data, not authenticated:  Code gnd6 signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it consists of legacy data not authenticated by a curation team.

gnd7

GND automatically generated record, not authenticated:  Code gnd7 signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it was not authenticated, but generated automatically.

gndz

GND protected record:  Code gndz signifies that the record is part of the Integrated Authority File (GND - Gemeinsame Normdatei (Deutsche Nationalbibliothek)) and that it is protected from editing or updating.

isds/c

ISSN Canada:  Code isds/c signifies that the CONSER ISSN Network data elements have been verified by ISSN Canada.  ISSN Canada authenticates ISSN data elements for Canadian imprints.  The code reflects the ISSN Network's earlier name, ISDS (International Serials Data System).

issnuk

ISSN UK Centre:  Code issnuk signifies that the ISSN Network data elements have been verified by ISSN UK.  ISSN UK authenticates ISSN data elements for United Kingdom imprints.

lac

Library and Archives Canada monographs:  Code lac signifies that the descriptive elements and headings on a bibliographic record have been verified by Library and Archives Canada.  LAC authenticates full monograph records for Canadian imprints and records of Canadian interest.

lacderived

Library and Archives Canada derived cataloging:  Code lacderived signifies that the data in the record has been created from data derived from an external source (e.g., from a digital object).  Descriptive elements and headings have not been authenticated by a cataloger.

lc

Library of Congress:  Code lc signifies that the CONSER descriptive elements and all headings have been verified by the Library of Congress.  LC authenticates records not within the purview of Library and Archives Canada.

lcac

Library of Congress Children's and Young Adults' Cataloging Program:  Code lcac signifies that the cataloging was done as part of the Library of Congress Children's and Young Adults' Cataloging Program (formerly called the Library of Congress Annotated Card Program) whereby summaries and children's subject headings are added to facilitate discovery of a resource by a juvenile audience.  [deprecated]

lccopycat

LC Copy Cataloging:  Code lccopycat signifies that the Library of Congress has used another organization's record as the basis for its cataloging.  All headings have been checked against the relevant authority file (except for series headings in records used after May 31, 2006 and except for subject headings not from Library of Congress Subject Headings).

lccopycat-nm

LC Copy Cataloging-Near Match:  Code lccopycat-nm signifies that the Library of Congress has used an existing bibliographic record that is not an exact match of the item in hand as the basis for its cataloging.  The record copied could be from LC or another cataloging agency.  The record copied could be for another edition, version, or format of the item.  The data are updated to fully reflect the item in hand.  All headings are checked against the relevant authority file (except for series headings in records used after May 31, 2006 and except for subject headings not from Library of Congress Subject Headings).

lcd

CONSER full authority application:  Code lcd signifies that the CONSER descriptive elements and all headings have been verified by the Library of Congress or an authenticating CONSER participant.

lcderive

LC derived cataloging:  Code lcderive signifies that the Library of Congress has used another organization's catalog record essentially "as is" for its cataloging.  All headings and uniform titles have been processed through special software developed to evaluate and ensure that the headings and uniform titles match all existing LC authority records and conform to cataloging rules.

lchlas

LC Handbook of Latin American Studies:  Code lchlas signifies that the descriptive and subject elements have been derived from the internal Library of Congress Handbook of Latin American Studies file.  Name headings may or may not have been verified against LC's name authority file.

lcllh

LC Law Library Hispanic:  Code lcllh signifies that the descriptive elements have been derived from the internal Library of Congress Index to Hispanic Legislation.  Name headings have been verified against LC's name authority file.

lcnccp

LC National Coordinated Cataloging Program:  Code lcnccp signifies that the record is a Library of Congress National Coordinated Cataloging Program record.  The headings are all present in LC's authority files and the descriptive elements follow AACR 2.

lcnitrate

LC Nitrate Film:  Code lcnitrate signifies that the descriptive elements have been derived from a Library of Congress database containing inventory information on LC's nitrate film collection.  Name headings have not been verified against LC's name authority file.

lcnuc

National Union Catalog:  Code lcnuc signifies that descriptive elements have been edited and all headings verified against the relevant authority file to prepare the records for inclusion in an LC National Union Catalog file.

lcode

LC Overseas Data Entry:  Code lcode signifies that the record is from one of LC's overseas field offices.  The descriptive elements follow AACR 2 and the headings have been checked off-line against LC's name authority file using MARC-Names (on CD-ROM).

msc

CONSER minimal authority application:  Code msc signifies that the CONSER descriptive elements have been verified by the Library of Congress or an authenticating CONSER participant.  All headings have been checked against the relevant authority file, but an authority record was not found for one or more headings.

natgaz

U.S. National Gazetteer Geographic Feature Name:  Code natgaz signifies that the heading (geographic feature name) for the record has been approved by the U.S. Board of Geographic Names for inclusion in the National Gazetteer maintained by the U.S. Geological Survey.  The name is the official name for the U.S. geographic feature, for general use and for use in Federal printed and electronic products.

nbr

National Bibliography Resource:  Code nbr signifies unambiguous identification that a record is part of a national bibliography.

nlc

Library and Archives Canada CONSER & Authority Code:  Code nlc signifies that the CONSER descriptive elements and headings have been verified by Library and Archives Canada.  LAC authenticates records for Canadian imprints and records of Canadian interest.  On an authority record, code nlc signifies that Library and Archives Canada is the authentication center.  [revised definition, 2019 May]

nlgcopycat

NLG Copy Cataloging:  Code nlgcopycat signifies that the National Library of Greece (NLG) has used a catalog record from another library "as is" without any changes or modifications.  All headings have been checked by experts against the relevant NLG authority file.

nlgcopyderive

NLG derived cataloging:  Code nlgcopderive signifies that the National Library of Greece (NLG) has used a catalog record from another library with minor changes or modifications to descriptive elements.  All headings have been checked by experts against the relevant NLG authority file.

nlgfull

NLG full cataloging:  Code nlgfull signifies that the descriptive elements of the record and all headings have been verified by the National Library of Greece (NLG).

nlmcopyc

National Library of Medicine Copy Cataloging:  Code nlmcopyc signifies that National Library of Medicine has used another organization's record as the basis for its cataloging.  All headings have been checked against the relevant authority file (except subject headings not from the National Library of Medicine).

norbibl

National Library of Norway (Nasjonalbiblioteket):  Code norbibl signifies that the descriptive elements have been edited and all headings were verified by the National Library of Norway.

nsdp

U.S. ISSN Center (formerly National Serials Data Program):  Code nsdp signifies that the ISSN Network data elements have been verified by the United States ISSN Center.  The U.S. ISSN Center assigns and authenticates ISSN Network data elements for U.S. imprints.

nst

New Serial Titles:  [OBSOLETE, 1984]

ntccf

LC National Translations Center Citation File:  Code ntccf signifies that the descriptive elements have been derived from data in the Library of Congress National Translations Center Citation File.  Name headings have not been verified against LC's name authority file.

nznb

New Zealand National Bibliography:  Code nznb signifies that the descriptive elements have been edited and all headings were verified against the relevant authority file to prepare the record for inclusion in the New Zealand National Bibliography.

pcc

Program for Cooperative Cataloging:  Code pcc signifies that the record was authenticated under the auspices of the Program for Cooperative Cataloging.  All name and series headings have been checked against the appropriate national level authority file and authority records have been created if they did not already exist.  Subject headings are checked for authorized forms or combinations supported by the relevant authority.

premarc

LC PreMARC Retrospective Conversion Project:  Code premarc signifies that the record was converted to machine-readable form as part of a Library of Congress retrospective conversion project.  The source records used in the initial phase of this project (1978-1979) were printed catalog cards taken from the LC general shelflist, atlas and map shelflists, and the music shelflist.  Subsequently, printed catalog cards from various other manual LC files were used as the source for additional records converted.

reveal

REVEAL Union Catalog Project:  Code reveal signifies that the MARC record conforms to the criteria for inclusion in the REVEAL union catalog.

sanb

South African National Bibliography Project:  Code sanb signifies that the descriptive elements and all headings in the records have been authenticated for inclusion in the South African National Bibliography Project.

scipio

SCIPIO: Art and Rare Book Sales Catalogs:  Code scipio signifies that the descriptive elements and all headings in the records have been authenticated for inclusion in Scipio.

toknb

Tokelau National Bibliography:  Code toknb signifies that the descriptive elements have been edited and the record authenticated for inclusion in the Tokelau National Bibliography.

ukblcatcopy

British Library derived cataloging:  Code ukblcatcopy signifies that the British Library has used another organization's catalog record essentially "as is" for its cataloging.  All name headings have been checked against the relevant authority file.

ukblderived

British Library derived cataloging:  Code ukblderived signifies that the British Library has re-used another organization's catalog record for its cataloging.  Headings have been validated against the relevant authority file.

ukblproject

British Library project:  Code ukblproject signifies that the British Library has entered metadata in accordance with a template or script which was machine transformed to MARC.  Name headings and subject headings correspond to NACO and FAST respectively.

ukblsr

British Library Standard Record:  Code ukblsr signifies that the record conforms to the definition for the British Library Standard Record and all name and subject headings have been verified against the relevant authority file.

ukscp

UK Legal Deposit Libraries' Shared Cataloguing Programme Record:  Code ukscp indicates that the record conforms to the definition for the UK Legal Deposit Libraries' Shared Cataloguing Programme Record.

xissnuk

Unverified by ISSN UK Centre:  Code xissnuk signifies that the ISSN Network data elements have not been verified by ISSN UK.  ISSN UK authenticates ISSN data elements for United Kingdom imprints.

xlc

LC does not consider item a serial.

xnlc

NLC does not consider item a serial.

xnsdp

NSDP does not consider item a serial.

zdb

Zeitschriftendatenbank:  Code zdb signifies that the record is part of the Zeitschriftendatenbank (German Union Catalogue of Serials) and that is was authenticated by a national curation team.