MINNEAPOLIS – Union Pacific Railroad, a freight-hauling railroad headquartered in Omaha, Nebraska that operates rail lines in 23 states, covering most of the western two-thirds of the United States, violated federal law when it terminated conductors and locomotive engineers on the basis of perceived disability, used unlawful qualification standards to screen out individuals with disabilities, and subjected the employees to unlawful medical examinations and inquiries, the U.S. Equal Employment Opportunity Commission (EEOC) charged in a lawsuit filed today.