[7-13-25] On all Periodicals, USPS Marketing Mail, and Bound Printed Matter flats mailed at presorted, automation, or carrier route prices, mailers must place the delivery address at least 1/8 inch from any edge of the mailpiece. For the purposes of these standards, the “delivery address” is the recipient’s name or other identification; the company information line; the street and number, and any necessary secondary information; and the city, state, and ZIP Code. The delivery address may appear on the front or the back of the mailpiece (but must be on the side bearing postage, except for Periodicals), parallel or perpendicular to the top edge, but it cannot be upside down as read in relation to the top edge. See 2.2.2 for additional standards for enveloped or polywrapped pieces, and card-style pieces; and 2.2.3 for bound or folded pieces not in envelopes or polywrap. See 601.6.3 for addressing standards when a window envelope is used.