FILE - A maintenance worker walks past the company logo on the side of a locomotive in the Union Pacific Railroad fueling yard in north Denver, Oct. 18, 2006. Four railroads, including Union Pacific, have asked federal appeals courts to throw out a new rule that would require two-person train crews in most circumstances. (AP Photo/David Zalubowski, File)
FILE - A worker rides a rail car at a BNSF rail crossing in Saginaw, Texas, Sept. 14, 2022. Four railroads, including BNSF, have asked federal appeals courts to throw out a new rule that would require two-person train crews in most circumstances. (AP Photo/LM Otero, File)