Gsa Mileage Rate Increase 2024. * airplane nautical miles (nms) should be converted into statute miles (sms) or regular miles when submitting a voucher using the formula (1 nm equals 1.15077945. The gsa stipulates different rates for the first and last day of travel.

67 cents per mile for. Though the full per diem for meals for a tier 1 location is $59, the starting and ending daily rate is $44.25.