Bibb v. Navajo Freight Lines, Inc.

Bibb v. Navajo Freight Lines, Inc., 359 U.S. 520 (1959), is a United States Supreme Court case in which the Court held that the Illinois law requiring trucks to have unique mudguards was unconstitutional under the Commerce Clause.

Source: Wikipedia — Bibb v. Navajo Freight Lines, Inc. (CC BY-SA 4.0)