After January 1, 2018, with the exception of a self-installer, all installers in the State of Illinois shall be subject to certification by the Commission under this Part.
Ill. Admin. Code tit. 83, § 462.20
After January 1, 2018, with the exception of a self-installer, all installers in the State of Illinois shall be subject to certification by the Commission under this Part.
Ill. Admin. Code tit. 83, § 462.20