Commercial Priority Mail postage may be paid with: Click-N-Ship; PC Postage when registered end users use a shipping label (e.g. Stamps.com, endicia, Pitney Bowes); or permit imprint with electronic Confirmation Services and effective October 1, 2008, a barcode under 708.5.0 for the ZIP Code of the delivery address.
A mailer may be authorized to mail material without affixing postage when payment is made at the time of mailing from a permit imprint advance deposit account established with the USPS for that purpose. A mailer must also use electronic Confirmation Services and effective October 1, 2008, a barcode under 708.5.0 for the ZIP Code of the delivery address. This payment method may be used for postage and extra service fees. This method must not be used to pay postage on any mailpiece that is designed for reply purposes.
Permit imprint mailings must contain at least 200 pieces or 50 pounds submitted under the terms of an approved manifest mailing system agreement with exceptions allowed under a minimum volume reduction provision.