Wabash, St. Louis & Pacific Railway Co. v. Illinois
The Supreme Court struck down an Illinois law that punished railroads for charging more for a shorter haul than a longer one, ruling Illinois could not apply the law to a shipment that was part of one continuous trip into another state.
The decision held that only Congress, not individual states, may regulate the rates charged for goods moving across state lines, a ruling that exposed a regulatory gap Congress filled the next year by creating national oversight of railroad rates.
“We must, therefore, hold that it is not, and never has been, the deliberate opinion of a majority of this court that a statute of a State which attempts to regulate the fares and charges by railroad companies within its limits”
The Court's core holding that states cannot regulate railroad rates for interstate shipments.
How it got here: An Illinois trial court ruled for the state; the Illinois Supreme Court affirmed twice; the railroad brought a writ of error to the U.S. Supreme Court.
The Case in Depth
What happened
A shipper paid the Wabash railroad fifteen cents per hundred pounds to send a car of goods the longer distance from Peoria, Illinois to New York, while another shipper paid twenty-five cents per hundred pounds for a similar car sent the shorter distance from Gilman, Illinois to New York. Illinois sued the railroad for penalties under a state law banning this kind of long-haul/short-haul rate discrimination.
The question before the Court
Could Illinois punish a railroad for charging different rates on two shipments that both traveled from Illinois all the way to New York?
The Court's answer
No — the Court ruled Illinois could not enforce its anti-discrimination railroad law against shipments that were part of one continuous trip from Illinois towns to New York City. Because the shipping contracts covered the entire journey as a single undertaking, the Court treated the whole shipment as interstate commerce, which only Congress has the constitutional power to regulate.
The Court distinguished earlier cases upholding state regulation of railroads and warehouses, explaining those involved business conducted entirely within one state. Allowing every state along an interstate route to impose its own rate rules would create conflicting requirements the commerce clause was meant to prevent, so Illinois's law could not be applied here.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
The ruling stripped states of the power to police railroad rates on goods moving between states, leaving no one regulating interstate rail pricing. Congress responded the following year by passing the Interstate Commerce Act, creating the first major federal regulatory agency and permanently changing how railroad rates were policed nationwide.
What changes now
The case was sent back to the Illinois Supreme Court for further proceedings consistent with the ruling, meaning the penalty judgment against the railroad could not stand as entered. More broadly, the decision left interstate railroad rates unregulated by any government body, prompting Congress to pass the Interstate Commerce Act the following year, creating federal oversight of railroad rates for the first time.
What this does not decide
The Court did not say Illinois could never regulate railroad rates. It noted that a contract to carry goods entirely within Illinois, such as from Cairo to Chicago, would remain within the state's power to regulate; the ruling applied only to shipments that were part of one continuous interstate transportation.
Concurrences and dissents
Dissent — Justice Bradley
“We think that the State does not lose its power to regulate the charges of its own railroads in its own territory, simply because the goods or persons transported have been brought from or are destined to a point beyond the State in another State.”The dissent's central objection that states retain power over their own railroads despite interstate destinations.
Justice Bradley argued that states have long regulated local instruments of commerce like railroads, bridges, and ferries even when this incidentally affects interstate commerce, and that this power continues until Congress acts. He contended Illinois's law was a valid exercise of the state's authority over its own railroads within its borders, not a direct regulation of interstate commerce, and that the Court's own earlier decision in Peik v. Chicago & Northwestern Railway already upheld state power over exactly this kind of rate regulation and could not be distinguished.
How the Court got there
The legal reasoning, step by step
- The Court first had to decide whether the shipments were purely commerce within Illinois or were commerce among the states — a distinction that determines whether Congress alone may regulate the transaction under the Constitution's commerce clause.
- Because the Illinois Supreme Court had construed each shipping contract as one continuous undertaking to carry goods from an Illinois town all the way to New York City, the Court treated the entire shipment as a single, indivisible act of interstate commerce rather than a series of separate state-by-state transactions.
- The Court distinguished this case from earlier decisions like Munn v. Illinois and Chicago, Burlington & Quincy Railroad v. Iowa, explaining that those cases involved a warehouse and a railroad operating entirely within one state, so any effect on interstate commerce there was only incidental.
- The Court reasoned that letting every state along an interstate rail route set its own rules for rates and discrimination would create a patchwork of conflicting requirements, exactly the kind of burden on national commerce the commerce clause was written to prevent.
- Applying this reasoning, the Court concluded that Illinois's statute, as interpreted by its own courts, directly regulated part of the price of an interstate shipment, making it a regulation of commerce among the states that only Congress could impose.
Doctrinal impact
Cases affected by this decision
Limits Peik v. Chicago & Northwestern Railway (94 U.S. 164)
The Court limited Peik's broad language suggesting states could regulate railroad rates affecting interstate commerce.
Distinguishes Munn v. Illinois (94 U.S. 113)
The Court said Munn involved a warehouse entirely within Illinois, unlike this continuous interstate shipment.