Ill. Admin. Code tit. 83, § 731.820
a) If a Level 4 carrier receives a bona fide request for wholesale service and either agrees to provide that service or is obligated to provide that service under the Act or the federal Telecommunications Act, that carrier may be required, after notice and hearing, to comply with some or all of the Level 2 requirements established in Subpart F. In connection with any such hearing, the Commission shall consider and rule upon each of the following items: