Coins Mailed in Window Envelopes

We issued new Customer Support Ruling (CSR) PS-328, Mailing Coins and Similar Items in Window Envelopes at Automation Letter Rates, to clarify the mail preparation requirements for these types of mailpieces. Coins or tokens visible through a window envelope must be affixed to one of the components in the mailpiece, covered in a second wrapping, and streamlined within the envelope as described in the new CSR. The coin or token cannot interfere with the address or the barcode.

CSRs cover many topics and are available on Postal Explorer (pe.usps.com) for searching, sorting, and printing.