DCM Z1: 645 Series Tracing Practice
LC series practice: As of June 1, 2006, LC does not create or update SARs.
PCC series practice: Transcription of the series statement is mandatory if applicable. Searching for series authority records, tracing the series, and the creation and maintenance of series authority records are optional.
National-level
PCC tracing decision:
for all newly-established SARs for series, multipart items, and other series
(serial) = "trace."
General policy for tracing practice
When reestablishing a series that was untraced prior to RDA, always give two 645 fields, using the RDA implementation date (regardless of the date of creating the SAR):
645 ## $a t $d items cataloged after Mar. 30, 2013 $5 [code]
645 ## $a n $d items cataloged before Mar. 31, 2013 $5 [code]
Even if only one/few volume(s) of a series or a serial other than a monographic series is analyzed, the 645 $a = t.
Recording national-level and PCC local tracing decisions
The national-level PCC tracing decision is separate from the local tracing decision at any PCC institution. The national-level tracing decision always will be to trace. The MARC 21 organization code used for this national-level decision in subfield $5 is "DPCC." PCC participants should include the national-level and local decisions in SARs according to the following guidelines.
PCC participants: new SAR
(1) Always include the national-level decision to trace in any new SAR created for a monographic series, multipart item, or other series (serial) regardless of your local tracing decision.
645 ## $a t $5 DPCC
(2) Optionally, add your own local decision.
(a) If your decision is to trace, add your MARC 21 organization code as the last subfield $5 in the one 645 field.
645 ## $a t $5 DPCC $5 IRA
(b) If your decision is not to trace, give two 645 fields with your decision in a second 645 field.
two fields in one SAR:
645 ## $a t $5 DPCC
645 ## $a n $5 WaU
PCC participants: existing SAR
(1) Optionally, add the national-level decision if it is not present in the SAR.
(2) Optionally, add your local tracing decision. NOTE: Only one PCC participant may include a local tracing decision in an SAR.
(a) If your decision is to trace, add your MARC 21 organization code to an already-existing 645 field with a decision to trace; if a 645 field is not present, add the field with your MARC 21 organization code in subfield $5.
645 ## $a t $5 DPCC $5 WaU
645 ## $a t $5 DPCC $5 DLC $5 CoDU
645 ## $a t $5 DLC $5 CoDU
645 ## $a t $5 IRA
[Examples represent single fields in different SARs.]
(b) If your decision is not to trace, give your decision in a second 645 field if a 645 for a "traced" decision is present. If a 645 field is not present, add the field with your MARC 21 identification code in subfield $5.
two fields in one SAR:
645 ## $a t $5 DPCC
645 ## $a n $5 IRA
single field in one SAR:
645 ## $a n $5 WaU
For more information on DCM Z1 Instructions, select: