In the article “IMM Revision: Exchange Office for IPA and ISAL Service to Brazil” in Postal Bulletin 22280 (3-11-10, pages 8–9), the effective date of the revision (cited as May 10, 2010) was incorrect.
The correct effective date is May 3, 2010.
All the other revision information in the article is correct.
We will incorporate those revisions into the next printed version of the IMM and into the monthly update of the online IMM, which is available via Postal Explorer® at http://pe.usps.com.
— Mailing Standards, Pricing, 4-8-10