Publication 2 - Packaging for Mailing - Postal Explorer - USPS.com

Marking5-1.25 Marking5-1 Authorized Markings5-1.1 GeneralThe DMM and the IMM provide information on addressing standards andendorsements required for each class of mail and service. Special markingsare also required for certain restricted items. Contact a business mail entryunit for guidance (see DMM G042 for addresses).As a rule, the following markings are permitted on the outside of a mailingcontainer: Return and delivery addresses. Ancillary service endorsements for address correction, forwarding, etc. Special service endorsements. Class of mail marking. Handling instructions.5-1.2 AddressEach package must show adelivery address on the mailingcontainer or on a label affixedto the container. In addition,a return address must beplaced in the upper left cornerof the container (or address label).The addresses should meet postal addressformat standards. Publication 28, Postal Addressing Standards, providesdetailed information about address formats and requirements.Inside the mailing container, the names and addresses of the sender andaddressee and a description of the enclosed items should be included. Thisprecaution can aid in the delivery of a parcel if the addresses on the outsideof the container become unreadable or the items become separated from thecontainer.Publication 2, January 200219