The USPS established a Detached Mail Unit at IMS. It is staffed and operated by USPS personnel. The USPS personnel inspect the mail daily to ensure that it meets all USPS presort mailing requirements. After the mail is inspected it is cleared directly from IMS into the USPS system.
Detached Mail Units are established at mailing companies that have high volumes of presorted mail which meet the highest level of presorting capability.