Norfolk Southern Railway Co. v. Sorrell
The Supreme Court ruled that a federal law protecting injured railroad workers requires courts to use the same causation standard for both the railroad's negligence and the worker's own negligence, rejecting Missouri's practice of holding railroads to a looser standard than injured workers.
The decision sends a railroad worker's $1.5 million jury verdict back to a Missouri appeals court to decide whether the mismatched jury instructions actually changed the outcome, since the case can't be fully resolved until that question is answered.
“We are typically reluctant to permit parties to smuggle additional questions into a case before us after the grant of certiorari.”
Explaining why the Court would not decide what the exact causation standard should be.
How it got here: A Missouri jury awarded damages under mismatched instructions; the Missouri Court of Appeals affirmed and the state supreme court declined review, so Norfolk sought Supreme Court review.
The Case in Depth
What happened
Timothy Sorrell, a railroad trackman, was injured when his dump truck flipped after an encounter with another company truck on a gravel road. He sued his employer, Norfolk Southern, in Missouri state court under a federal law that lets injured railroad workers recover damages even if they were partly at fault. Missouri's jury instructions used a looser standard for judging the railroad's negligence than for judging the worker's own negligence.
The question before the Court
When a railroad worker is hurt on the job and both he and the railroad may have been negligent, must courts use the same standard for deciding whether each side's negligence caused the injury?
The Court's answer
Yes — the Court ruled that Missouri could not apply a stricter causation standard to an injured worker's own negligence than it applied to the railroad's negligence. Because the federal law reduces a worker's damages 'in proportion' to his fault, the Court reasoned that comparing the two sides' negligence only makes sense if both are measured by the same yardstick, and nothing in the statute's text told states to do otherwise.
The Court did not decide what that shared standard should actually require — whether it should be traditional proximate cause or something more relaxed — because that broader question hadn't been properly presented for review. Instead, the case goes back to the Missouri Court of Appeals to sort out whether the mismatched instructions actually affected the jury's verdict, and whether a new trial is needed.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Railroad workers and railroads litigating injury claims nationwide will now be judged by matching causation rules on both sides, ending Missouri's outlier approach. This affects how juries are instructed in FELA cases, potentially changing verdicts and damage awards where a worker's own carelessness is at issue.
What changes now
The case returns to the Missouri Court of Appeals, which must decide whether using different causation standards for the railroad and the worker was harmless error given the trial evidence, and whether Sorrell is entitled to a new trial. The Supreme Court did not decide what the single causation standard should actually require, leaving that question open for future cases.
What this does not decide
The Court decided only that the same causation standard must apply to both the railroad's negligence and the worker's contributory negligence — not what that standard's actual content should be, including whether it requires traditional proximate cause. The concurring justices disagreed with each other about how to answer that separate, unresolved question.
Concurrences and dissents
Concurrence — Justice Souter
Justice Souter agreed the same causation standard should apply to both sides, but wrote separately to argue that the shared standard must be traditional proximate cause. He contended that a prior decision, Rogers v. Missouri Pacific, never eliminated proximate cause but only addressed how to handle injuries with multiple causes, and criticized lower courts that read Rogers as adopting a looser 'slightest cause' test.
Concurrence — Justice Ginsburg
Justice Ginsburg concurred in the judgment but wrote to insist the Court's ruling should not cast doubt on settled precedent establishing a relaxed causation standard for FELA claims, under which a railroad's negligence need only play 'any part, even the slightest' in causing an injury. She argued this relaxed standard, properly understood, is itself the applicable proximate-cause test, and cautioned courts against using confusing 'proximate cause' language in jury instructions.
How the Court got there
The legal reasoning, step by step
- The Court first declined to expand the question presented beyond whether the two causation standards must match, refusing to decide what the single standard's exact content should be, since that issue hadn't been fully briefed below.
- The Court then looked to common-law principles, which control the meaning of a federal statute's terms unless Congress clearly rejected them in the statute's text — and found that at common law, the same causation standard applied to both an injured person's claim and the defendant's fault-reduction defense.
- Because the federal railroad injury law didn't expressly depart from that common-law approach, and because reducing damages 'in proportion' to a worker's fault is hard to do consistently if the two sides are measured by different yardsticks, the Court found strong reason to require one shared standard.
- The Court rejected the injured worker's argument that different statutory wording for the railroad's liability section versus the worker's-fault section signaled an intent to use different standards, explaining the wording differences served other purposes and did not address causation at all.
- The Court concluded that the law's protective purpose for workers could not substitute for actual statutory text authorizing different standards, so a single, consistent causation standard must govern both sides of the case.