901–907 Local Data Element 9:3
User-Option Data 9:4
OCLC/CONSER Miscellaneous Data 9:5
Vendor Specific Ordering Data 9:7
945–949 Local Processing Information 9:8
Local Electronic Location and Access 9:9
WLN Automatic Holdings Statement 9:17
Local Romanization/Conversion History 9:18
Project Identifier 9:20
WorldCat Record Use Policy Link 9:21
Bibliographic Formats and Standards
9xx fields are not part of the MARC format. OCLC defines some 9xx fields for the
Library of Congress and for internal OCLC use. Most 9xx fields can be defined for
local use by individual libraries.
9xx fields defined
Fields 936, 956, 984, and 987 are defined by OCLC. Fields 901-907, 910, and 945–
949 are locally defined. Most 9xx fields not mentioned are also locally defined.
OCLC products and
OCLC products and services use some 9xx fields for processing. OCLC does not
retain these fields in the master record. They may be retained in archival records and
institution records, however, depending on the needs of the product or service. For
example, field 951 is used for agent specific data for cataloging agent
authorizations. This manual does not include descriptions of these fields.
The WorldCat Cataloging Partners service also uses some 9xx fields to supply
nonbibliographic information. Because WorldCat Cataloging Partners 9xx fields are
defined by agreement between a library and a vendor, this manual does not include
descriptions of these fields. OCLC removes WorldCat Cataloging Partners-defined
9xx fields from master records.
Field 938 (Vendor Specific Ordering Data) is system-supplied by OCLC to support
Vendor Record Contribution and other OCLC services. It is retained in the master
record. A description of field 938 is included in this manual.
901–907 Local Data Element (R)
Local data. Fields 901–907 are not part of the standard MARC format. Define these