174 Postage Payment and Documentation

1.0 Postage Payment Methods for Media Mail and Library Mail

1.1 Payment Method

The mailer is responsible for proper postage payment. Subject to the corresponding standards, postage for Media Mail and Library Mail may be paid by any method (see 604) except precanceled stamps.

1.2 Affixing Postage—Single-Piece Price Mailings

In a postage-affixed single-piece mailing, the mailer must apply enough value in adhesive stamps or meter stamps equal to the postage required.

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2.0 Postage Paid With Permit Imprint

A mailer may mail material without affixing postage when payment is made at the time of mailing from a permit imprint advance deposit account established with the USPS under 604.5.0.

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