Union Pacific 1983 is an EMD SD70ACe locomotive owned by Union Pacific Railroad and painted in the scheme of a predecessor railroad, the Western Pacific Railroad. The locomotive was unveiled together with number 1982 (painted in honor of Missouri Pacific Railroad) in a private ceremony on July 30, 2005, in Omaha, Nebraska, after which it entered regular revenue service. The Electro Motive Division of General Motors SD70ACe locomotive is similar to the SD70MAC with additional updates to meet the latest EPA regulations for road locomotives.