Bibliographic input standards

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These Bibliographic Input Standards are brief and not intended to be used independently. Rather, they should be used for MARC bibliographic database maintenance along with all CCS documentation and OCLC manuals.

The Bibliographic Input Standards Committee was formed to review current CCS data entry practice, identify problem areas, examine OCLC input standards, and make recommendations for CCS bibliographic input standards. As a result, OCLC Level I Input Standards have been adopted. Level I represents full cataloging rather than minimal level cataloging. Level I corresponds to the second level of description found in AACR2, 2002 revision, Rule 1.0D2. CCS is committed to upgrading all OCLC records to Level I quality.

The latest version of OCLC's Level I Input Standards can be found in Bibliographic Formats and Standards. For each field and subfield, the Level I Input Standard is given first, followed by Level K; for example, "Required/Optional" means the field is required for Level I but optional for Level K. See the Input Standards section of the Bibliographic Formats & Standards Overview for more information. (OCLC's standards are, in turn, based on the MARC21 National Full & Minimal Requirements.)

In Bibliographic Formats & Standards and below:

  • Mandatory indicates that the information must always be input.
  • Required indicates that the information must be input if it is applicable and present on the piece or in the cataloging source.
  • Retain indicates that the information must be kept if it is found in the cataloging source, but not necessarily supplied by the local cataloger.
  • Obsolete indicates that the tag is no longer used. To find out if the field data should be re-tagged, consult the online version of OCLC's Bibliographic Formats and Standards

Fixed field elements in each format should be checked for accuracy and filled in if required or mandatory (OCLC Level I standards).

For original entries, OCLC guidelines apply.

The following table documents instances where CCS practice is at variance with OCLC input standards.

FF Definition Comments
AccM Accompanying matter Required
Audn Target audience Required
Biog Biography Required
Comp Form of composition Required
Cont Nature of contents Required
EntW Nature of entire work Required
File Type of computer file Required
Ills Illustrations Required
Indx Index Required
LitF Literary Form (formerly Fiction) Required
Tech Technique Required
 
Tag Field Name Comments
015 National Bibliography Number Retain
016 National Bibliographic Agency Control Number Retain
019 OCLC Control Number Cross-Reference Retain
050 Library of Congress Class. No. Retain
082 Dewey Decimal Call No. Retain
092 Locally Assigned Dewey Call Number Retain
257 Country of production Required (for video recordings only)
260 or 264 Publication, distribution, etc. MANDATORY
340 Physical medium Required (for large print material only)
345 Projection characteristics Retain
346 Video characteristics Required
520 Summary, etc. note Retain
521 Target audience note Required
580 Linking entry complexity note Retain
655 Index term, genre/form Required
760 Main series entry Required
762 Subseries entry Required
765 Original language entry Required
856 Electronic location and access Required
936 Dates or Volume Designations of Last Issue Consulted Retain