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).
Ill. Admin. Code tit. 92, § 544.20