| First Indicator | Second Indicator |
|---|---|
| Existence in LAC collection # - Information not provided 0 - Work held by LAC 1 - Work not held by LAC |
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 |
| Subfield Codes | |
|---|---|
|
|
Complete call number or a classification number assigned by Library and Archives Canada (LAC) or a Canadian organization other than LAC.
Excludes those numbers assigned from the National Library of Medicine classification system, the Universal Decimal Classification, and the Dewey Decimal Classification. These latter numbers are input in fields 060 (National Library of Medicine Call Number), 080 (Universal Decimal Classification Number), and 082 (Dewey Decimal Classification Number), respectively.
First Indicator - Existence in LAC collection
Whether or not the item is contained in the Library and Archives Canada collection.
Used in any record input by an institution other than LAC.
| 055 | #4$aHT152 | ||||||||
Second Indicator - Type, completeness, source of call/class number
The type of number involved (whether it is Library of Congress Classification (LCC) or an LCC-compatible call/class number, or a call/class number assigned from some other classification scheme), the completeness of the number, and whether the number was assigned by Library and Archives Canada or a Canadian organization other than LAC. (An LCC-compatible call/class number is a number that has been assigned using the schedules that were specifically developed by LAC for Canadian history (FC, or its precursor F5000) and for Canadian literature (PS8000). The term does not include numbers from locally modified or expanded LCC schedules.)
An LCC or LCC-compatible call number (value 0 or 3) is one that includes shelflisting information in addition to the LCC or LCC-compatible class number.
An LCC or LCC-compatible class number (value 1, 2, 4, or 5) is one that does not include any shelflisting information. A “complete” class number (value 1 or 4) is one that does not require a Cutter as a further extension. An "incomplete" class number (value 2 or 5) is one that requires a Cutter number as a further extension. Incomplete class numbers are always followed by an asterisk.
For non-LCC call/class numbers (value 6, 7, 8, or 9), the source list or scheme used to assign the number may be identified by a code in subfield $2 (Source of call/class number).
| 055 | 00$aTX715.6$b.A76513 2020 | ||||||||
| 055 | 01$aML410.B1 | ||||||||
| 055 | 02$aML420* | ||||||||
| 055 | #5$aHT164* | ||||||||
Call number (other than an LCC, NLM, Universal Decimal, or Dewey) which has been assigned by LAC.
| 055 | 06$aKF385.ZA2$bB69 2019$2kfmod | ||||||||
Class number (other than an LCC, NLM, Universal Decimal, or Dewey) which has been assigned by LAC.
Call number (other than an LCC, NLM, Universal Decimal, or Dewey) assigned by a Canadian organization other than LAC.
| 055 | #8$aKF385$b.M59 2004$2kfmod | ||||||||
Class number (other than an LCC, NLM, Universal Decimal, or Dewey) assigned by a Canadian organization other than LAC.
$a - Classification number
Classification number portion of the call number. Alternate call numbers are recorded in separate 055 fields.
| 055 | 02$aFC2949* | ||||||||
| 055 | 00$aFC2949.S72$bZ49 | ||||||||
$b - Item number
Item number portion of the call number.
| 055 | 00$aF5050 .2$bT5 | ||||||||
| 055 | 00$aML420.D592$bC3713 | ||||||||
| 055 | 00$aPS8329$b.B35 | ||||||||
$0 - Authority record control number or standard number
See description of this subfield in Appendix A: Control Subfields.
$1 - Real World Object URI
See description of this subfield in Appendix A: Control Subfields.
$2 - Source of call/class number
Source list or scheme from which the call/class number was assigned. Used only when the second indicator contains value 6 (Other call number assigned by LAC), 7 (Other class number assigned by LAC), 8 (Other call number assigned by the contributing library), or 9 (Other class number assigned by the contributing library).
Code from: Classification Scheme Source Codes.
| 055 | #8$aKF385.ZA2$bT34 1989$2kfmod [Call number assigned from KF Classification, Modified for Use in Canadian Law Libraries.] |
||||||||
$6 - Linkage
See description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number
See description of this subfield in Appendix A: Control Subfields.
Punctuation - Field 055 does not end with a period.
Spacing - Any spaces that are desired as part of the call number must be input.
In 2024 Indicator 2 and its values were updated to reflect contemporary usage.