Procedure is exactly the same as if the seller had a permit, when they call for the authorization number they will be asked for the buyer's permit number (required of course) and the seller's permit number, simply state seller has no permit and acquired the gun _______, (whatever legal manner they did), they may ask for the seller's driver's license number, although I bought one once and they did not seem to care as long as you provide them with name, address, DOB and phone number of the seller...