We charge a "Permissions Fee" for use of photographs in books, articles, CDROM, Videos etc. The fee is charged to "For Profit" entities...is there a way to request some sort of "proof" from the requestor that they are indeed a non-profit entity? What about the Federal ID/Tax#...or is that just for places that don't get taxed? I know this may sound stupid, but figured I'd post it out there anyway. -Nina- (Nina Cummings // The Field Museum, Chicago)