Replaces everything after the enacting clause. Amends the Illinois Vehicle Code. Authorizes the Department of Transportation to restrict vehicle length on its roadways as it deems appropriate. Provides that for the purposes of designing or modifying the intersection of a local roadway and a State roadway that does not accommodate specified vehicles, a local unit of government may request in writing for the Department to restrict the length of vehicles turning on to or off of any jurisdiction roadway of the intersection. Provides that such a restriction becomes effective when appropriate signs giving notice of the limit are erected and each governmental entity shall cause signage to be installed on its respective roadway to notify vehicles of turning and length restrictions. Prohibits vehicles that exceed posted measurements from turning to access the roadway. Requires each unit of local government to report to the Department, and the Department to post on its official website, any limitations prohibiting the operation of vehicles imposed by ordinance or resolution in the unit of local government's non-designated highway system and any non-designated highway that is not designed and constructed after January 1, 2024 (rather than January 1, 2023) to the overall length dimension of vehicles permitted.