Chicago, Milwaukee & St. Paul Railway Co. v. Public Utilities Commission

Background

Railroads that carried saw logs in Idaho challenged an Idaho commission order that reduced intrastate freight rates for logs. Federal rate changes during and after World War I and a 1922 Interstate Commerce Commission (ICC) finding led Idaho to call for matching reductions. Several railroads refused to cut their log rates, saying the existing rates were already too low and confiscatory. The Western Pine Manufacturers Association intervened to support reductions for shippers.

Reasoning

The core question was whether Idaho could simply adopt ICC findings and order lower intrastate log rates without fully hearing and weighing the railroads’ evidence. The Court explained that the 1922 ICC findings applied to interstate traffic and did not automatically control intrastate rates. The Idaho commission erred by refusing to consider carrier proof that intrastate log rates were confiscatory and by relying on interstate lumber receipts to justify intrastate reductions. The Court found that the commission’s method was arbitrary and denied the railroads due process, because it failed to hold an appropriate rate hearing and improperly treated intrastate and interstate traffic as interchangeable for proving reasonableness.

Real world impact

The decision protects rail carriers from state orders that reduce intrastate rates without a proper hearing and independent evidence supporting those reductions. It requires state regulators to consider intrastate rates on their own record and to give weight to carrier cost evidence, rather than automatically adopting federal interstate findings. The Court reversed the Idaho order.