Registered Mail® International - USPS
faq.usps.com › articles › FAQWhen using Registered Mail service, the item must be presented to a retail employee or rural carrier. When mail is registered internationally and is inbound for the United States, it will be handled in the domestic First-Class Mail mailstream from the point that USPS obtains it until it reaches the local Postal Office responsible for mail delivery. The recipient must sign a delivery receipt at the time of delivery.
How to Send an International Package | USPS
www.usps.com › international › preparingPrint your return address and the delivery address clearly, on the same side of the box where you’ll be putting your postage, to help ensure your package is delivered on time. International Address Format Tips Print addresses neatly in capital letters. Use a pen or permanent marker. Don’t use commas or periods. Write Sender Address