If you put a stamp on a BRM envelope, the recipient is typically not charged for the postage.
The words "BUSINESS REPLY MAIL" must appear in capital letters (at least 3/16 inch high) above the address.
To be valid, the envelope or card must meet strict USPS Postal Explorer standards: No Postage Necessary
Taping a BRM envelope to a heavy box (like a "box of rocks") is often considered a mail prank or "trolling." While some claim it forces companies to pay high shipping fees, the USPS may treat it as nonmailable or return it to the sender. 🎬 " No Postage Necessary " (2018 Film) I Love No Postage Necessary Sales Pieces | by Ed Swartz
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) If you put a stamp on a BRM
The imprint "NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES" must be in the upper right corner.
The permit number, city, and state of the issuing post office must be listed below the legend. Common Misconceptions 🎬 " No Postage Necessary " (2018 Film)
A series of uniform bars must be printed directly below the imprint.