DMM TOC > 100 Retail Letters, Cards, Flats, and Parcels > 150 Standard Post155 Mail Preparation1.0 Preparation for USPS Retail Ground1.1 Basic PreparationThere are no presort, sacking, or labeling standards for USPS Retail Ground pieces. 1.2 Delivery and Return AddressesAll USPS Retail Ground pieces must bear both a delivery address and the sender’s return address. 1.3 Basic MarkingsThe basic required marking—“USPS Retail Ground”—must be printed on each piece in the postage area, or it may be printed on the shipping address label according to the standards in 102.3.4. |