The 9XX fields are available for local information, according to various descriptions by local systems, system vendors, MARC bibliographic service providers, etc.  These fields are not described by the MARC bibliographic format.

Note:  Appendix H contains Canadian 9XX field usage specifications and describes the conventions developed by Library and Archives Canada for the use of 9XX equivalence and cross-reference fields.

See also:

Appendix H:  Local Data Elements

Variable Data Fields