DCM Z1: 008/10 Descriptive cataloging rules
General:
All new name authority records created and contributed by LC/PCC catalogers must use code 008/10 z and include subfield $e (Descriptive conventions) rda in the 040 (Cataloging Source) field.
When an existing NAR using code a, b, c, or d is modified in any way, evaluate the NAR and re-code it to RDA, changing the 008/10 code accordingly.
Exception 1: If an existing NAR using code c is modified only to change or add a 5XX field, catalogers are strongly encouraged, but not required, to evaluate the NAR and re-code it to RDA, changing the 008/10 code accordingly.
Exception 2: Existing undifferentiated name authority records coded 008/10 c may be modified to remove one or more identities in order to create differentiated RDA authority records. When modifying an existing undifferentiated name authority record for this purpose, the updated undifferentiated name authority record must retain the existing 008/10 code.
For more information on DCM Z1 Instructions, select: