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30.05.2026
UP-NS merger application review has entered a new procedural phase after the Surface Transportation Board agreed to consider the revised filing from Union Pacific Railroad and Norfolk Southern Railway.
The unanimous decision is not an approval of the proposed $85 billion transaction. It means the revised merger application has met the formal completeness threshold for a major merger application, while the regulator still requires more detail before the review can move forward.
The railroads’ first application, as previously covered by Railway Supply, was rejected by the STB on Jan. 16. The board said then that the filing did not give it enough information to assess whether the proposed Union Pacific Norfolk Southern merger would be in the public interest.
Union Pacific and Norfolk Southern submitted a revised merger application on April 30. This time, the STB found that the filing contained enough material to meet the completeness requirements for a major railroad merger case. Still, several parts of the application remain “unclear or underdeveloped,” and the companies must submit supplemental information by July 27.
In a joint statement, UP and NS described the application’s acceptance as an important step toward a reinvigorated and more competitive U.S. railroad industry. They also acknowledged the STB’s request for additional information and said they remain committed to working with the regulator.
Union Pacific CEO Jim Vena said the companies had filed a comprehensive, data-driven application backed by a detailed plan for seamless integration. He added that the railroads looked forward to presenting the facts and demonstrating the proposed transaction’s benefits for customers, employees and America.
The Surface Transportation Board said the material from UP and NS was sufficient to meet the formal completeness requirements for a major merger application. It also said that, given the narrow procedural question of completeness, the issues raised by commenters did not provide grounds to reject the revised application.
The broader review process will not resume immediately under the full procedural schedule. The STB has placed the proceedings on hold, including the environmental review, until the requested supplemental information is submitted and the board can examine it. The regulator noted that this abeyance does not affect discovery.
The additional information requested from Union Pacific Railroad and Norfolk Southern Railway covers several central issues in the proposed merger. The list includes enhanced competition, access for 2-to-1 and 3-to-2 shippers, public benefits and diversion analysis, the service assurance plan, gateways and car supply, market share projections, downstream merger impacts, passenger rail, and workpapers.
The revised UP NS merger application has crossed an important procedural threshold. The next step now depends on whether the railroads can answer the STB’s remaining questions in enough detail for the review to continue.
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