American Trucking Associations, Inc. v. Michigan Public Service Commission

Summary

The Court held that Michigan's flat $100 fee on trucks engaging in intrastate commercial hauling does not violate the dormant Commerce Clause because it applies evenhandedly to local activities and lacks evidence of burdening interstate trade. Justice Scalia and Justice Thomas concurred in the judgment, with Scalia avoiding dormant Commerce Clause tests and Thomas questioning the Clause's textual basis.