
Mallory v. Norfolk Southern R. Co
Robert Mallory sued Norfolk Southern Railway in Pennsylvania for workplace injuries that occurred in other states. The Supreme Court ruled that a Pennsylvania law requiring out-of-state companies to consent to face lawsuits in the state as a condition of doing business there does not violate the Due Process Clause.
- Status
- Decided
- Appeal from
- Supreme Court of Pennsylvania, Eastern District
- Argued
- Nov 8, 2022
Decision briefing
The case in plain English
What Happened
The Supreme Court is deciding if a Pennsylvania law can force out-of-state companies to face lawsuits in the state just because they registered to do business there. Robert Mallory sued a railroad company in Pennsylvania for injuries that happened in other states, claiming the company agreed to the state's jurisdiction (the power of a court to hear a case) by registering. The railroad argues this violates the Due Process Clause of the Fourteenth Amendment, which protects against unfair legal proceedings.
Why It Matters
This case could change where people are allowed to sue large corporations. If the Court allows these laws, companies could be sued in any state where they register to do business, even for events that happened elsewhere. This would make it much easier for plaintiffs to choose states with laws or juries they find more favorable.
The Big Picture
For decades, the Supreme Court has limited where companies can be sued to protect their constitutional rights. This case tests whether those protections can be waived if a company signs a state's business registration form. It balances a state's right to set rules for businesses against a company's right to not be dragged into distant courts.
What the Justices Said
During oral arguments, the justices explored whether a company's consent to be sued is truly voluntary when it is required for business registration. They also discussed whether older legal precedents still allow states to demand this kind of agreement from out-of-state corporations.
The Bottom Line
The Court must decide if registering to do business in a state counts as giving up the right to only be sued in specific locations.
What's Next
The Court has finished hearing arguments and is currently drafting a written opinion. A final decision is expected by the end of the term in early summer. This ruling will clarify the rules for 'general jurisdiction' over corporations across the entire country.
What is the main disagreement in this case?
The case centers on whether a state can require a company to agree to be sued there as a condition of doing business. The railroad argues this is an unfair requirement that violates its constitutional rights.
How could this decision affect everyday people?
If the Court sides with Mallory, workers and consumers could sue national companies in any state where those companies are registered. This might lead to more lawsuits in states known for high jury awards.
What specific part of the Constitution is being debated?
The case focuses on the Due Process Clause of the Fourteenth Amendment. This clause ensures that legal proceedings are fair and that defendants have a meaningful connection to the place where they are sued.
What is the next step in the legal process?
The justices are now meeting in private to vote and write their opinions. They will release a public decision that explains their reasoning and sets a new legal rule for the nation.
How does this case fit into broader legal trends?
The Court has recently been making it harder to sue corporations in states where they are not headquartered. This case could either continue that trend or create a major exception based on business registration.
Where things stand
Timeline
Source note
How this page is sourced
Official case materials anchor this page. Reporting is used only to add context and explain the dispute in plain English.
Page data last refreshed Mar 30, 2026.
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