Publication 685, Publication for Streamlined Mail Acceptance for Letters and Flats, contains the policies and processes for the verification of eligible business mailings using tools provided by Intelligent Mail Full-Service, eInduction, and Seamless Acceptance. Publication 685 contains an explanation of each verification program; detailed participation requirements for each program; descriptions of Postal Service verifications; mail quality error thresholds; and postage assessment calculations.
Publication 685 is a central hub to other reference documents, with links to the Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM) and other relevant documents.
Publication 685 is subject to updates based on changes to the DMM or program modifications. Notification of policy or threshold changes will be provided through notification in the Federal Register, Industry Alerts, and DMM Advisories, etc. The mailing industry will be provided a 30-day comment period on revisions or changes to processes, verifications and thresholds within Publication 685. The Postal Service will provide notification of the final proposal and implement the change no earlier than 90 days from the date of initial notification.
The DMM has precedence over this publication as a source of information for business mail preparation and entry requirements.
DMM: http://pe.usps.com/text/dmm300/dmm300_landing.htm