Good morning, Thank you for your message. This will not affect submissions already received that had USPS registered selected as the return shipping method.  Those will still go out as requested on the form.  This will just affect submissions received on or after July 5th.   Any submission created after that date will not ship USPS registered mail unless the return shipping address is a PO Box then it will automatically ship using registered mail as FedEx does not ship to PO Boxes.