Change Messages (Additions and Changes to Authority Records)
Authority records in the NAF that are in the process of being updated sometimes contain "change messages." Change messages usually relate to LC workflow where they serve as a temporary indicator of what changes will be made to an authority record.
NACO participants do not normally create change messages, since changes may be made via LSP. However, these records may be encountered by NACO participants when searching the NAF.
These records may be identified by the Record update in process fixed field 008/31 b and a capitalized term "Message" in the 667 field followed by information regarding how the record will be updated.
When NACO participants encounter a record with a change message that is more than six months old, he should notify the NACO Coordinator, who will then ask LC staff to check on the record.
See also:
Section II - Additons and Changes to Authority Records