2-3.4 Letter-size Piece With Attached Release Card

A letter-size mailpiece, with one or two attached release cards, must have the following characteristics:

  1. The piece must be between 8" and 9-1/2" long (inclusive). With one release card affixed, the piece must be between 4" and 6" high (inclusive); with two release cards affixed, the piece must be between 5-1/2" and 6" high (inclusive).
  2. No address element, including any address block barcode, may be closer than 1" to the right edge of the mailpiece.
  3. The surface smoothness must be a maximum of 190 Sheffield Units.
  4. Enveloped letters must be made of paper with a minimum 60-pound book-grade paper and have a maximum thickness of 1/8". Window envelopes must have only one closed panel address window, no larger than 1-1/2" x 4-1/4".
  5. Card-type letters, not mailed at card prices, must have a maximum thickness of 0.025" as mailed.
  6. All pieces other than enveloped letters and card-type pieces (such as folded self-mailers and booklets) must have a maximum thickness of 0.1" as mailed. Mailpieces with two affixed release cards must meet the following additional conditions:
    1. Pieces requiring tabs must be sealed with 1-1/2" nonperforated tabs, unless larger tabs are required by standards for the specific mailpiece design.
    2. Booklets must have a minimum cover weight of 70-pound book-grade paper.
    3. Folded self-mailers must have a minimum cover weight of 100–pound book-grade paper.
  7. Content insert shift must be no more than 5/8" horizontally and no more than 1/4" vertically.
  8. Release cards must meet the standards in DMM 201.3.13.5.