“The USPS® is deploying a new technology that will boost efficiencies in the processing, distribution, and delivery of flats–the Flats Sequencing System (FSS). FSS will automatically sort flat-sized mail into delivery point sequence at high speeds. The efficiencies gained by employing FSS are influencing many changes within both the Postal Service® and the mailing industry.”

FSS facility summary by FSS location – 47 sites
FSS Locations as of May 2010

FSS Deployment Schedule for 100 machines to 47 sites
FSS Deployment Schedule – Updated August 2010 – RIBBS Version

Zone listing for 9 FSS operational sites
A list of zones and their anticipated live mail dates for each site and corresponding machine(s) activated up through November 29, 2010.
Zone List by Operational Site

Zones for all sites as of September 7, 2010 Zone List for RIBBS – September 2010