To be valid, the envelope or card must meet strict USPS Postal Explorer standards:
The permit number, city, and state of the issuing post office must be listed below the legend. Common Misconceptions
This is a pre-authorized service that allows a person to mail a letter or postcard back to a company without applying a stamp. The company (permit holder) is billed only for the pieces actually returned. Key Format Requirements No Postage Necessary
The imprint "NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES" must be in the upper right corner.
A series of uniform bars must be printed directly below the imprint. To be valid, the envelope or card must
Vertical bars at the top edge that help automated sorters identify the mail type.
The phrase primarily refers to the United States Postal Service (USPS) Business Reply Mail (BRM) system, where a business pays the postage for a recipient's response. It also refers to a 2018 independent film. ✉️ Business Reply Mail (BRM) Key Format Requirements The imprint "NO POSTAGE NECESSARY
The words "BUSINESS REPLY MAIL" must appear in capital letters (at least 3/16 inch high) above the address.