What kind of mail requires a signature upon delivery?

Registered mail and certified mail are specifically designed to provide a higher level of security and accountability for the sender and recipient. The requirement for a signature upon delivery is a key feature that distinguishes these types of mail from others.

With registered mail, items are tracked throughout the mailing process and require a signature to confirm that the item has been received. This ensures that valuable items, such as important documents or valuable merchandise, are securely delivered to the intended recipient.

Certified mail, similarly, is used to send important documents with proof of delivery. The recipient must sign for certified mail, providing the sender with a delivery receipt, which serves as legal proof that the item was delivered to the correct person at the specified address.

In contrast, standard mail, priority mail, and first-class mail typically do not have this signature requirement, focusing more on general delivery rather than the secure and verifiable handling of the item.