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Manifest Analysis Certification
The Postal Service® has a voluntary program for vendors who supply manifest software. The Manifest Analysis and Certification (MAC) and (MAC Gold) programs test vendor-supplied manifesting

software to determine whether it calculates postage and fees accurately and

is able to produce listings of mailpieces, facsimile postage statements, and other documentation that meet applicable Postal Service standards. If the software successfully passes the MAC tests, it is certified by the Postal Service.

Contact Information:

Important Updates

Standard Mail DSCF Load Leveling Final Rule Published in the Federal Register

The Postal Service has released its Federal Register final rule revising the service standards for Standard Mail that is eligible for Destination Sectional Center Facility (DSCF) rates. These changes will allow a more balanced distribution of DSCF Standard Mail across delivery days. With its new rules, USPS is extending delivery expectation to four days for mail entered on Friday and Saturday. National Implementation began April 10, 2014.


January 2014 Price Change Fact Sheets


Getting Started with Full-Service Intelligent Mail


PostalOne! Contingency Plan

For mailers unable to submit electronic information, click here for the PostalOne! Contingency Plan.











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