There aren't multiple exceptions.

Any newly created NAR may have nonroman references.

Any NAR created before 

>>> "Gary L. Strawn" <[log in to unmask]> 10/1/2008 5:11 PM >>>
This would have been better if powers that be had said "Only OCLC 
will create, modify or delete non-Latin 4XX fields for any kind of 
authority record until <date>".  The multiple exceptions are confusing.

Gary L. Strawn, Authorities Librarian, etc.
Northwestern University Library, 1970 Campus Drive, Evanston IL 60208-2300
e-mail: [log in to unmask]   voice: 847/491-2788   fax: 847/491-8306
Forsan et haec olim meminisse iuvabit.          BatchCat version: 2006.51.826