Why Certified Mail Matters for Immigration Correspondence

When you send immigration correspondence — whether responding to an RFE, submitting supporting documents, or sending an explanation letter — proof that your letter arrived can be just as important as the letter itself.

What is certified mail?

Certified Mail is a USPS service that provides a tracking number and a delivery record. The sender receives confirmation that the item was delivered, including the date of delivery. With the return receipt option, you also receive a signed card confirming who accepted the delivery.

Why it matters for immigration correspondence

• Proof of timely submission: If USCIS or another agency claims they didn't receive your response, your certified mail receipt proves otherwise
• Delivery date confirmation: The USPS delivery record shows exactly when your letter arrived
• Signature proof: With return receipt, you have a physical card showing who signed for the delivery

Comparing mail types

Our recommendation

For most immigration correspondence — especially responses to RFEs, NOIDs, or other notices with deadlines — we recommend Certified Mail with Return Receipt ($12.99). The signed return card is your strongest proof that your response was received by the agency.

This guide is for informational purposes only and does not constitute legal advice.