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

Summary

The Court held that Michigan's flat $100 annual fee on trucks engaged in intrastate commercial hauling does not violate the dormant Commerce Clause because it applies only to local activity, does not facially discriminate against interstate commerce, and lacks evidence of practical burden. Justice Scalia concurred in judgment, rejecting various Commerce Clause tests, and Justice Thomas concurred in judgment, arguing the negative Commerce Clause lacks textual basis.