Bibliographic input standards
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 |