Amends the Counties Code. Provides that Will County may adopt an ordinance regulating and imposing a civil penalty on an owner of a vehicle for failure of an operator to comply with gross vehicle weight or axle weight restrictions and that the County may enforce its regulations using an automated vehicle weigh-in-motion enforcement system. Allows a municipality wholly or partially within the County to enter into an intergovernmental agreement with the County to provide automated vehicle weigh-in-motion enforcement systems in the municipal jurisdiction. Includes requirements for automated vehicle weigh-in-motion enforcement systems. Provides requirements for violation notices and for civil penalties for violations.