LCRI 12.0, "Serials Issued in Cumulation and Serials Issued in Parts," provides guidelines for inputting separate records for cumulations of a serial and for separate parts of a serial issued in parts. RI 21.28B "Supplements to other serials" provides guidelines for inputting separate records for supplements or for noting them on the parent record. CONSER members should follow these guidelines for authenticating separate records for a serial with different frequencies, for authenticating multiple records for a serial issued in parts and for authenticating separate records for supplements to serials.

If duplicate records of these types have been authenticated, report them to LC for resolution. Do not report such duplicates to OCLC. OCLC permits separate records for different frequencies, separate records for both the whole and for all parts, and a separate record for a supplement, even when mentioned in a note on the parent record.

For splitting into separate records entries that have been previously covered by one record, see C8. Record Consolidation/Separation.

See also:

C7.2. Categories of Permissible Duplicates