Mailing Standards of the United States Postal Service Domestic Mail Manual > 100 Retail Mail Letters, Cards, Flats, and Parcels > 140USPS Marketing Mail FlatsEvery Door DirectMail-Retail (EDDM-Retail) > 144 Postage Payment and Documentation
1.0 Basic Standards for Postage Payment
2.0 Mailing Documentation
The mailer is responsible for proper postage payment. Postage for EDDM-Retail flats must be paid with a postage evidencing system indicia (604.4.0) of the correct amount of postage affixed to each piece or at the time of mailing by cash, check, debit card, or credit card.
Mailers must obtain a Customer Registration ID (CRID), available online at https://gateway.usps.com.
A postage indicia must be on each piece mailed as EDDM-Retail, printed above and to the right of the simplified address. See Exhibit 1.3 for the required wording of the indicia.
Exhibit 1.3 EDDM-Retail Indicia
Each mailing of EDDM-Retail flats be accompanied by a postage statement (PS Form 3587) completed and signed by the mailer.
Documentation for mailings of EDDM-Retail flats includes the postage statement (see 2.1), a sample mailpiece, and (if applicable) a list of “do not deliver” addresses.