This Subpart applies to RES and electric utilities, as applicable. This Subpart does not apply to electric cooperatives or municipal systems making an election under Section 17-300 of the Act to become an ARES or, except as provided in Section 455.140, to an ARES that is exempt from the requirements of Section 16-115D of the Act.
Ill. Admin. Code tit. 83, § 455.100