Rooftop
625 ILCS 5/1-179.5
in effect(625 ILCS 5/1-179.5) Sec. 1-179.5. Rooftop. The major uppermost portion of a bus body that is flat in a fore and aft direction. (Source: P.A. 90-89, eff. 1-1-98.)
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://www.ilga.gov/legislation/ilcs/ilcs.aspFetched: 10/17/2026