This tab is required. The Non-Employee Travel Expense Tab breaks down entry of the nonemployee travel expense information into five sections. The Traveler Information and Destination sections are always required. Of the Per Diem, Personal Vehicle, and Traveler Expenses at least one must be completed, depending on the expenses needed to be reimbursed. After that, the other two are optional. The Travel Expenses Total section is display-only, and the Pre Paid Expenses section is always optional.