IMM Revision: U.S. Postal Service Registered Trademarks

Effective October 7, 2013, the Postal Service™ will revise Mailing Standards of the United States Postal Service, International Mail Manual (IMM®) to add part 116, which will list Postal Service trademarks that appear throughout the IMM.

Listing the marks in this part will negate the need to use the registered symbol (®) or the trademark symbol (™) throughout the IMM.

We will incorporate this revision into the next update of the online IMM, which is available via Postal Explorer® at