The Rail Customer Coalition (RCC) has called on the federal Surface Transportation Board to evaluate the competitive implications of a potential merger between Union Pacific and Norfolk Southern. The RCC, representing various industries, argues that this merger could reduce the number of Class I railroads, limiting options for shippers and potentially destabilizing supply chains. While proponents claim that the merger would enhance efficiency, the RCC warns that unchecked consolidation could lead to higher costs and poorer service, echoing concerns raised by some U.S. senators. The STB is expected to receive a formal merger application by January 2026.