92 Ill. Adm. Code 547.100
Introduction
Section 547.100 Introduction
a) This
Part has been developed, in accordance with Section 12-602.1 of the Illinois
Vehicle Code (the Code) [625 ILCS 5/12-602.1], to regulate the use of signs by the
Department, municipalities and counties that prohibit excessive engine braking
noise along streets and highways under their respective jurisdictions. This
Part establishes standards and financial responsibility for the signs.
b) Engine
braking signs shall not be installed on freeways or interstate highways under
the jurisdiction of the Department, except near weigh stations as prescribed in
Section 547.300(c), but may be installed along roads or streets under the
jurisdiction of the Department in accordance with Section 11-303(b) of the Code
[625 ILCS 5/11-303(b)].