CAN/MARC 9XX fields:

900  Equivalence or Cross-Reference - Personal Name  (R)

910  Equivalence or Cross-Reference - Corporate Name  (R)

911  Equivalence or Cross-Reference - Conference or Meeting Name  (R)

930  Equivalence or Cross-Reference - Uniform Title Heading  (R)

980  Equivalence or Cross-Reference - Series Statement - Personal Name/Title  (R)

981  Equivalence or Cross-Reference - Series Statement - Corporate Name/Title  (R)

982  Equivalence or Cross-Reference - Series Statement - Conference or Meeting Name/Title  (R)

983  Equivalence or Cross-Reference - Series Statement - Title/Uniform Title  (R)

990  Link to Equivalences or Cross-References  (R)

Definition and scope:

These 9XX fields were developed by Library and Archives Canada and included in their records created and distributed since 1975.  In Canada, the 9XX fields serve as a fundamental support for cataloging in both English and French, reflecting the bilingual character of Canada.  In USMARC, the 9XX fields were reserved for local use following the principles for the development of the format.  The inclusion of the 9XX fields in this appendix does not preclude the continued use of these fields as locally defined fields in non-Canadian systems.

The 9XX fields indicated above contain information that provides bibliographic access and facilitates the generation of bibliographic products that are required in bilingual cataloging environments.  They may also contain information that may be used to create cross-references.  A separate field 990 links the corresponding fields that are to be used to produce particular output products.


Equivalences are given in these 9XX fields only for names and uniform titles that function as main or added entries in a bibliographic record and only if there is an official form of name or title in more than one language.

Equivalences for subject headings appear in the appropriate 6XX (Subject Access Entry) field.  Differentiation of subject headings is made by the identification of the thesaurus from which a term is taken, which is identified either by an indicator value or thesaurus code in subfield $2 (Source).


Cross-references can be provided for any main entry field (100-130), series fields (440, 800-830), or added entry fields (700-730).  Reference instruction terms or phrases, such as the term see, are not part of the data in a 9XX field that contains a cross-reference.  They may be machine generated based on the value of the field tag.

Field structure:

The structure of the 9XX fields (except field 990) is the same as the corresponding main and added entry fields (1XX, 7XX), and series fields (440, 8XX).  Field 990 serves to link the other 9XX fields to their corresponding fields.  The table below lists the standard format fields that correspond to the 9XX fields.  The content designation for each 9XX field is the same as that described for each corresponding field, e.g., field 100, field 730, etc.  The 9XX name fields may also carry, in subfield $t, uniform and collective title information corresponding to field 240 and field 243 data.

9XX Field

Corresponding Field(s)


100, 700 (Personal Name)


110, 710 (Corporate Name)


111, 711 (Conference or Meeting Name)


130, 730 (Uniform Title)


800 (Series - Personal Name)


810 (Series - Corporate Name)


811 (Series - Meeting Name)


440, 830 (Series Title)


No corresponding field

Content designator history:

For information on the following obsolete fields, select a field tag.

940  Equivalence or Cross-Reference - Uniform Title

941  Equivalence or Cross-Reference - Romanized Title

943  Equivalence or Cross-Reference - Collective Title

945  Equivalence or Cross-Reference - Title

951  Equivalence or Cross-Reference - Geographic Name/Area Name

952  Equivalence or Cross-Reference - Hierarchical Place Name

See also:

990  Link to Equivalences or Cross-References

Appendix H:  Local Data Elements