United States Postal Service Extra Services Labels
Extra Services are enhancements that, for a fee in addition to postage, provide greater security and accountability for mail, convenience to the sender, or improved handling. Not all extra services are available for all classes of mail and only certain services may be combined for the same mailpiece. The current eDelivery Confirmation, eSignature Confirmation, and Certified labels will continue to be accepted by the USPS. Each of these labels will be modified in the future to include an IMpb barcode. The coloring, look & feel will also change with the new labels.
These labels are available on the www.USPS.com website under Postal Store/Shipping Supplies.