Identifier-1 must not be a data item of class DBCS; literal-1
must not be a DBCS literal.
This restriction is removed.
The program-name given by identifier-1 or literal-1 must not
contain DBCS characters.
This restriction is removed.
General Rules
Each item of class DBCS referenced in the USING clause must
correspond to an item of class DBCS in the USING clause of the Procedure
Division header of the called program.