ARI's Transportation Division�s primary function is transporting mail for the United States Postal Service, proudly serving the USPS in this capacity since 1963. Most recently, we contracted with USPS to haul mail transport equipment for the Mail Transport Service Center Division (MTESC). Amtrak and a publishing company also rely on us for mail service. In addition, our trucks carry commodities for our feed mill and dairy farm divisions and freight for a few transportation brokerages.