Illinois municipalities use several procedures to enforce vehicle-weight ordinances. Depending on the applicable statutes and local ordinances, a violation may be processed through a municipal administrative hearing system or by a uniform traffic citation filed in circuit court. Three Illinois decisions—Catom Trucking, Inc. v. City of Chicago, Cammacho v. City of Joliet, and Solano v. City of Chicago—address the authority of municipalities to adjudicate overweight-vehicle vio