Certified mail service is only available for First Class Mail or Priority Mail. Certified mail service is not available for international mail, and it does not provide insurance protection. For valuables and irreplaceable items use registered or insured mail. Coverage is not available for First-Class Mail unless it is merchandise. Mail Services will maintain a record of the parcel.
Return receipts are available for an additional fee.
Registered Mail Registered mail is the most secure service option offered by the Postal Service. It provides added protection for valuable and important mail. Registered mail articles are placed under tight security from the point of mailing to the point of delivery. Return receipt service is available for an additional fee. First Class or Priority Mail postage is required for registered mail.