When calculating mileage expenses for private vehicle use, check the Business Services website which lists the current mileage reimbursement rate.  Travel estimates should be adjusted to accommodate fare increases and inflation when projecting travel one or two years in advance. Principal investigators/project directors who pay for travel out of federally funded grants must (with a few exceptions) use domestic carriers for foreign travel. (See detailed information on college travel policies.)

Per Diem: When no guidelines are provided, costs should reflect sensible estimates of food and lodging needs. Budgets for travel abroad should take value-added hotel and food taxes into account.