California v. Thompson

Background

In this case the State of California prosecuted a man who arranged motor-vehicle transportation for passengers from Los Angeles to Dallas. California law required anyone who "sells or offers to sell or negotiate for" highway transportation to get a license from the State Railroad Commission. The law required the Commission to find the applicant fit, charged a $1 license fee, and required a $1,000 bond; acting without a license was a misdemeanor. A California appellate court reversed the conviction, citing an earlier decision, and the state appealed to the United States Supreme Court.

Reasoning

The core question was whether the license and bond unlawfully interfered with interstate commerce when applied to someone arranging an interstate trip. The Court noted Congress had not regulated casual or occasional interstate passenger trips and that the 1935 Motor Carrier Act excludes such casual carriage. The opinion explained that states may regulate local matters — including licensing brokers who arrange rides — to protect the public from fraud, so long as the rules do not discriminate against or substantially obstruct interstate commerce. The Court found the California requirements were a permissible local regulation and therefore upheld them.

Real world impact

States can require local transportation agents to be licensed and bonded to protect passengers from fraud, even when those agents arrange occasional interstate trips. The decision leaves room for future Congressional action to preempt state rules, but until then states may use licensing to police brokers and protect local travelers.

Dissents or concurrances

The Court explained that an earlier case, Di Santo v. Pennsylvania, had reached the opposite result, but the Court concluded that decision no longer controls and was effectively overruled.