I need to respond to an RFE and was wondering what should be the best way to mail it to USCIS so that it is not lost.
I understand that I have to use the envalope provided with the RFE document but USPS may not allow delivery confirmation/receipt return for such a small envelope.
I understand that I have to use the envalope provided with the RFE document but USPS may not allow delivery confirmation/receipt return for such a small envelope.