Mail Stop Codes are required for mail to be delivered anywhere on campus. Incorrect addresses could delay the delivery of your mail or result in having the mail returned to you for a deliverable address.
When using an Intra Campus Mail Envelope, be sure all previous addresses have been marked out to ensure proper delivery. The address you are mailing to should always appear on the last line below the previous address. A complete first and last name, department, and Mail Stop Code are all that is needed to insure proper delivery; see examples below.