220 ILCS 5/19-112

(a) An alternative gas supplier must maintain sufficient managerial resources and abilities to provide the service for which it has a certificate of service authority. In determining the level of managerial resources and abilities that the alternative gas supplier must demonstrate, the Commission shall consider, in addition to the requirements in Section 19-110(e)(1), the following: (1) complaints to the Commission by consumers regarding the alternative gas supplier, including those that reflect on the alternative gas supplier's ability to properly manage solicitation and authorization; and (2) the alternative gas supplier's involvement in the Commission's consumer complaint process, including the resources the alternative gas supplier dedicates to the process and the alternative gas supplier's ability to manage the issues raised by complaints, and the resolutions of the complaints. (b) The provisions of this Section shall apply only to alternative gas suppliers serving or seeking to serve residential or small commercial customers and only to the extent such alternative gas suppliers provide services to residential or small commercial customers, unless otherwise noted.