Castle v. Hayes Freight Lines, Inc.

Background

Hayes Freight Lines is a trucking company that carries goods between Illinois and several other states and also operates inside Illinois. Illinois law limits truck weight and how loads are balanced on axles, and it punishes repeated violations by suspending a carrier’s right to use state highways for 90 days or one year. Hayes challenged the state’s effort to treat its interstate operations as repeat offenders and stop them from using Illinois roads. The Illinois Supreme Court said Illinois could not suspend Hayes’ interstate highway rights, and this Court reviewed that ruling.

Reasoning

The central question was whether a State may bar an interstate carrier from using its roads as a punishment for repeated weight or loading violations. The Court explained that Congress created a federal licensing system under the Motor Carrier Act and that the Interstate Commerce Commission issues certificates that remain in effect unless the Commission itself suspends or revokes them after a hearing and a finding of willful noncompliance. Suspending highway access for interstate trips would operate like revoking part of that federal certificate and would therefore interfere with federally authorized interstate transportation. The Court also made clear that while states can set size and weight rules, they may not use highway bans to override federal operating rights; the federal Commission can address persistent noncompliance.

Real world impact

States cannot enforce repeated-violation suspensions that stop interstate hauling on state roads; enforcement must rely on ordinary penalties, state prosecutions, or action by the federal Commission. States still may enforce truck weight and size rules against vehicles on their roads, and the Commission can act if carriers repeatedly refuse to comply.