Premium airfare is allowed under certain circumstances as outlined in the policy, but in all circumstances, you are required to obtain in advance written approval from your dean, vice president, or a delegate, and attach the approval to your request for reimbursement. Individual colleges and operating units may establish more restrictive policies on the use of funds. Certain funding sources also may impose additional restrictions. You should become familiar with the applicable rules established by the sponsor or college and/or unit prior to travel.