Self mailer usps requirements

The United States Postal Service (USPS) has specific requirements for self-mailers, which are mailpieces that do not require an envelope. Here are the key requirements:

  1. Size: Self-mailers must be at least 3.5 inches high and 6.125 inches long, and no larger than 12 inches high and 15 inches long.
  2. Weight: Self-mailers must weigh no more than 3.5 ounces.
  3. Paper: Self-mailers must be printed on paper that is at least 20# weight and 80 gsm.
  4. Folded: Self-mailers must be folded in a way that prevents them from unfolding during processing and transportation.
  5. Sealing: Self-mailers must be sealed in a way that prevents them from opening during processing and transportation. This can be done using glue, tape, or other adhesives.
  6. Addressing: Self-mailers must have a clear and legible address in the top left corner, using a font size of at least 8 points.
  7. Barcodes: Self-mailers must have a barcode that includes the delivery point sequence (DPS) barcode, which is used to sort and track mailpieces.
  8. Permit: Self-mailers must have a permit number or indicia (a postage payment method) to ensure that the mailpiece is properly postage-paid.
  9. Content: Self-mailers must comply with USPS content restrictions, such as not containing hazardous materials, flammable liquids, or other prohibited items.
  10. Design: Self-mailers must be designed to prevent them from being easily opened or tampered with during processing and transportation.

Additionally, self-mailers must meet specific requirements for:

It's important to note that these requirements are subject to change, and mailers should always check with the USPS for the most up-to-date information on self-mailer requirements.