All signs, signals, markings, and devices which conform with the State Manual and not inconsistent with this Act placed or erected by authority of a public body or official having jurisdiction, for the purpose of regulating, warning, or guiding traffic.
625 ILCS 5/1-154
Official traffic-control devices
Known as the Illinois Vehicle Code. Portions of this Act
The act spans §§ 625-5-1-100 to 625-5-2-130 (368 sections).
P.A. 76-1586.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.