From various media:

USPS Introducing New Initiative – Expedited to Street/Afternoon Sortation (ESAS)

July 2020 – The Postal Service is introducing a new initiative called Expedited to Street/Afternoon Sortation (ESAS).  This program is an enhancement to the current Expedited Preferential Mail (EPM) Delivery program which reduces morning office time to allow carriers to leave for the street earlier. Upon returning from the street, the carriers then work any unsorted mail into delivery sequence for delivery the next scheduled day.

 

PLEASE NOTE:
We cannot answers questions or concerns relating to this new USPS initiative. Please contact your union representative.
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