Operational Window Change Savings

On January 5, 2015, the Postal Service revised its First-Class Mail (FCM) service standards, eliminating single-piece overnight FCM service and shifting some mail from a 2-day to a 3-day service standard. These revisions enabled the Postal Service to expand its mail processing operational window to process mail on fewer machines, thus using less facility square footage. This is known as the operational window change OWC. The OWC also required changes in mail transportation. The Postal Service projected the OWC would save over $805 million annually. The objective of our audit was to determine if the Postal Service achieved its projected savings for the OWC.