Will LC’s bibliographic records with 490 0 series statements overlay other libraries’ records with 440 or 490 1/8XX fields?
LC’s revised decision to “pass through” series access points when found on records used for copy cataloging will significantly reduce the number of situations when this overlay will occur. However, OCLC is still investigating the issue of how to protect controlled series information in the following situations: (1) when LC distributes a new version of an LC record with a 490 0 series statement and the OCLC version has been enhanced, or (2) when there may be an existing WorldCat record with controlled series information for the same title for which LC has done original cataloging.
