The mode of rail travel is expected to be the least costly option consistent with the itinerary and particular Foundation business involved. Except as otherwise provided herein, only coach tickets will be reimbursed or allowed. Acela tickets will be reimbursed or allowed only if the tickets are obtained using the University of Maryland discount.
If a traveler elects to take the Acela or upgrade to business class (except in cases where the tickets are obtained using the University of Maryland discount) and agrees to pay the difference between the two fares, the difference will be calculated from the least expensive logical rail fare on that particular routing. Documentation should be provided to support this calculation.