Surface Transportation Board Filing Hub

This hub provides official materials related to the accepted Union Pacific–Norfolk Southern STB application before the Surface Transportation Board (STB), including information from the April 30 refiling, along with a summary, white paper and the full application.

OMAHA, ATLANTA, (July 7, 2026) – Union Pacific and Norfolk Southern submitted the first portion of their responses to the Surface Transportation Board’s (STB) May 28, 2026, request for additional information to support their accepted merger application. The filing addresses the STB’s questions regarding Terminal Railroad Association of St. Louis (TRRA), Kansas City Terminal Railway (KCT) and TTX Company. The additional information continues to reinforce the combination will enhance competition, strengthen the nation’s supply chain and deliver broad public benefits. 

Featured Resources

Additional context supporting the joint application to the STB for the Union Pacific–Norfolk Southern combination, including its goals, benefits and public interest considerations.

Explore the Filing

Below are four files that make up the joint application to the STB.

Application Volume 1: Supporting Information and Summary of Benefits

This volume provides an overview of the proposed transaction, including public interest considerations, competitive and financial analyses, employee impacts, anticipated public benefits and supporting exhibits and verified statements.

Download PDF (32MB)

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Application Volume 2:
Market Analysis and Operating Plans

This volume includes detailed analyses of competitive impacts, operating and service plans, safety integration measures, and how the proposed transaction would affect rail operations and service.

Download PDF (41MB)

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Application Volume 3: Statements in Support

This volume includes statements from shippers, government officials, and other stakeholders expressing support for the joint application and the proposed transaction.

Download PDF (335MB)

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Application Volume 4: Supporting Exhibits

This volume contains detailed exhibits submitted with the joint Surface Transportation Board application, including materials addressing competition, operations, corporate structure and public interest considerations.

Download PDF (293MB)

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Request for Additional Information: Volume 1

This volume addresses the STB’s questions regarding control of Terminal Railroad Association of St. Louis (TRRA), Kansas City Terminal Railway (KCT) and TTX Company.

Download PDF (1MB)

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Estimated Path to Completion

Creating America’s first transcontinental railroad is overwhelmingly in the public interest and will enhance competition, consistent with the test that will be applied in the review of the transaction by the STB.

July 28, 2025: Union Pacific and Norfolk Southern Board of Directors unanimously approved the transaction
July 30, 2025: The Surface Transportation Board (STB) acknowledged receipt of Union Pacific and Norfolk Southern's notice of intent (prefiling notification), which officially initiated the regulatory review process
Nov. 14, 2025: Shareholders of Union Pacific and Norfolk Southern voted to approve the transaction, 99.5% and 99% respectively
Dec. 19, 2025: Union Pacific and Norfolk Southern filed their application with the STB
Early 2026: Union Pacific and Norfolk Southern conduct additional analysis and modeling of data to respond to the STB’s request for additional information
April 30, 2026: Union Pacific and Norfolk Southern refile their merger application
May 28, 2026: The STB accepted the Union Pacific and Norfolk Southern merger application.
July 7, 2026: Union Pacific and Norfolk Southern submitted the first portion of their responses to the STB’s May 28, 2026, request for additional information to support their accepted merger application.
Comments due
Responses to comments due
Final briefs submitted
Evidence closes
STB decision
Mid-2027**: The companies are targeting closing the transaction


**Estimates based on STB precedent.

Make Your Voice Heard

More than 2,000 businesses, unions, farmers and community leaders have already told the Surface Transportation Board why this combination matters. Tell Congress why America’s first transcontinental railroad matters for American jobs, supply chains and economic growth.

Benefits described are intended and proposed, subject to STB review and approval.

Please review Union Pacific’s cautionary note regarding forward-looking statements.