USI office mail stops are for official university business only. No commercial use of mail stops is allowed.

Group and keep USI envelope flaps overlapped (meter mail) for sealing and posting as well as separated from envelopes with regular postage stamps affixed.

A USI Mail Processing Form is used to flag international addressed mail as airmail or surface, and content description/value if merchandise, as required for customs declaration.

Outgoing USPS mail cannot be processed without USI department fund account for chargeback purposes.

Off-campus
Mail to Residence Life and University Home and Foundation/Development are delivered each work day. Mail to New Harmony operations is delivered on Tuesday and Friday mornings. The Distribution Services van leaves campus around 10:15 a.m. Return mail is delivered on the afternoon mail delivery.

Enclosures
Inter-office confidential matter should be sealed in an envelope marked "confidential" then placed in the USI inter-office envelope .

Non-mail items
Items such as glass parts, chemicals, bulky samples which are dangerous and can destroy the inter-office envelope are not allowed. These require special packaging and can best be served by contacting Distribution Services at extension 1823.