MARC 21 Format for Bibliographic Data: 055: Classification Numbers Assigned in Canada (Network Development and MARC Standards Office, Library of Congress)

First - Existence in LAC collection: # - Information not provided
Used in any record input by an institution other than LAC.; 0 - Work held by LAC; 1 - Work not held by LAC
Second - Type, completeness, source of call/class number: 0 - LCC (or LCC-compatible) call number assigned by LAC; 1 - Complete LCC (or LCC-compatible) class number assigned by LAC; 2 - Incomplete LCC (or LCC-compatible) class number assigned by LAC; 3 - LCC (or LCC-compatible) call number assigned by a Canadian organization other than LAC; 4 - Complete LCC (or LCC-compatible) class number assigned by a Canadian organization other than LAC; 5 - Incomplete LCC (or LCC-compatible) class number assigned by a Canadian organization other than LAC; 6 - Other call number assigned by LAC; 7 - Other class number assigned by LAC; 8 - Other call number assigned by a Canadian organization other than LAC; 9 - Other class number assigned by a Canadian organization other than LAC

$0 - Authority record control number or standard number (R): See description of this subfield in Appendix A: Control Subfields.

$1 - Real World Object URI (R): See description of this subfield in Appendix A: Control Subfields.

$2 - Source of call/class number (NR): MARC code that identifies the classification scheme used to assign the call/class number when the second indicator position contains value 6, 7, 8, or 9.; Code from: Classification Scheme Source Codes.

$6 - Linkage (NR): See description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number (R): See description of this subfield in Appendix A: Control Subfields.

055 - Classification Numbers Assigned in Canada (R)