92 Ill. Adm. Code 544.20
Scope
Section 544
Section 544.20 Scope
This Part establishes the basis
of financial responsibility for the installation, modernization, maintenance,
and energy charges of all traffic control signals installed on State-maintained
highways regardless of whether they are part of a joint City-State improvement
or involve only the installation of signals. The financial responsibility for
school and commercial-industrial signals shall be as prescribed in Departmental
Order 13-4 except that the maintenance and energy of school signals at public
road intersections will be as outlined in Sections 544.60(b) and 544.60(c).