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RAPIDRegulatory and Permitting Information Desktop Toolkit

Illinois Bulk Transmission Transmission & Interconnection(8-IL)

A bulk transmission developer may need to obtain a Certificate of Public Convenience and Necessity, from the Illinois Commerce Commission prior to constructing a high voltage electric service line. Illinois Public Utilities Act (220 I.L.C.S §§ 5 et seq.)

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Determine Which State and Federal Permits Apply

Use this overview flowchart and following steps to learn which federal and state permits apply to your projects.

Permitting at a Glance

Illinois Federal

State or Preemptive Authority: Illinois Commerce Commission (ICC) has authority to regulate all public utilities. Illinois Public Utilities Act (220 I.L.C.S §§ 5 et seq.), Illinois Regulations – 83 I.A.C. §§ 100 et seq., Public Utilities.
Transmission Siting Process: Illinois does not have a state comprehensive siting process for transmission facilities.
Siting Act: Illinois Public Utilities Act (220 I.L.C.S §§ 5 et seq.)
Regulated Entity Definition: A “public utility” is defined to include “…every corporation, limited liability company, association, … partnership, or individual…that owns, controls, operates or manages, within in the State, directly or indirectly, for public use, any plant, equipment or property used or to be used for or in connection with, or owns or controls…the production, storage, transmission, sale, delivery or furnishing of heat, cold, power, electricity, water, or light…” 220 I.L.C.S § 5/3-105(a)-(a)(1).
Public Utility Regulatory Authority Certification Transmission Threshold: A public utility must obtain a Certificate of Public Convenience and Necessity (CPCN) “…prior to the construction of any new plant, equipment, property or facility…” 220 I.L.C.S § 5/8-406.
Permit Processing Timeframe: There is no statutorily defined timeframe for permit processing of a CPCN, unless the Application meets the requirements of an expedited review process. ICC must issue its decision on an expedited Application within 150 days after the Application is filed. 220 I.L.C.S § 5/8-406.1(g).

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