NACO Participants' Manual -3rd Edition - Library of Congress

Appendix IIIdentifying LC Bibliographic Records in OCLCThe information in this appendix was provided by the Cataloging Policy and SupportOffice, Library of Congress in December 2003.GENERALWhen doing authority work, NACO libraries are asked to notify LC of any BFMstimulated by certain categories of authority work (See the guidelines athttp://www.loc.gov/catdir/pcc/naco/bfmguide.html). Since the LC bibliographic records arenot being observed directly in the catalog at LC but instead indirectly through otherdatabases, it is necessary to provide guidance to NACO libraries on how to identify LCbibliographic records that are candidates for BFM. These include both “current” records (LCbibliographic records that have been input/imported and issued by LC) and retrospectiverecords (LC bibliographic records that have been input by libraries other than LC). Thephrase "LC cataloging" is used to refer to the following categories of cataloging:1) cataloging done by LC itself (original cataloging);2) cataloging done by LC that has been input by libraries other than LC;3) cataloging done by other agencies at the "LC level" andissued/distributed by LC (some done under the Program for CooperativeCataloging; that done under the National Coordinated CatalogingProgram; older cooperative cataloging; CONSER (certain levels ofauthentication));4) LC copy cataloging (LC use of cataloging done by other libraries).Note that because of OCLC's merge process, the iteration of a record for LCcataloging residing in the OCLC database may not equate, data element for data element, tothe iteration of the same record residing in the LC catalog. For example, the former maycontain call numbers and subject headings from classification and subject heading systemsnot used by LC.Over the years LC has engaged in many cataloging programs, and it is thusimpossible to define the LC catalog by a succinct and easily followed formula. In defining thatcatalog as a subset of the OCLC database, different approaches for monographs and serialsare required. For monographs, it is necessary to key on the values in the cataloging source(MARC 21 008/39). For serials, the key is in the codes in the 042 field and the code forlanguage of cataloging in $b of field 040.98