October Term 2021 · Docket 20-807

Does a parked locomotive count as in use under federal safety laws?

The dispute centers on whether a stationary locomotive qualifies as in use for strict liability purposes.

Official caption
LeDure v. Union Pacific Railroad Co.
Latest argument session
Latest official Court activity
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Decided
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Verified source milestones

  1. — An official oral-argument transcript was verified.
  2. — An official oral-argument transcript was verified.
  3. — An official Court opinion was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    the side that brought the case cited a 1904 case involving a motionless dining car.

    the opposing side noted that a diesel engine weighs 400,000 pounds.

    the opposing side argued that the engine must be rendered inoperable.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

This case tests the definition of in use for locomotives. the side that brought the case argues a parked engine remains in use. the opposing side argues a parked engine is not in use.

Official sources for this section

How the case got here

The Supreme Court heard oral argument in this case on March 28, 2022.

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What each side wants

the side that brought the case wants the Court to hold that a parked locomotive is in use.

the opposing side wants the Court to hold that a parked locomotive is not in use.

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What each side says

the side that brought the case argues that a motionless locomotive serves functions that keep it in use.

the opposing side argues that a parked locomotive is not in use because it is not hauling goods.

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What the justices asked

Justice Kagan asked why the Court discusses the word use when the regulation does not use it.

Chief Justice Roberts asked if a car in a driveway is in use under similar logic.

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Why it matters

This case defines when rail equipment triggers strict liability. It determines worker safety standards for parked trains. It clarifies the scope of federal railroad safety laws.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Verified official opinions and orders

Title and summary sources

Revision history

  1. Revision 1 · Post Opinion ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Post Opinion ·

    Correction: Migrated to the dated official Court activity contract without model use.

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