Q. Which of the MARC (machine-readable cataloging) formats are used by cataloging staff at LC?
The MARC 21 Format for Bibliographic Data is used by LC catalogers when inputting bibliographic records and data in LC's integrated library system database and in OCLC. The MARC 21 Format for Authority Data is used by LC catalogers when creating authority records for the name and subject authority files. The MARC 21 Format for Classification Data is used by the Policy and Standards Division in the creation of Library of Congress Classification records that are available in Classification Web. Library of Congress Classification schedules are produced from records in the MARC 21 classification format.