Ill. Admin. Code tit. 86, § 515.110 – Nature of Water and Sewer Assistance Charge

a) Notwithstanding any provisions of the Public Utilities Act, each water or sewer provider shall, effective January 1, 2022, assess each of its customer accounts a monthly Water and Sewer Assistance Charge. [305 ILCS 21/25]
b) The charges imposed by this Part shall apply to customers of a water or sewer provider only if the water or sewer provider voluntarily makes an affirmative decision to impose the charge. [305 ILCS 21/25]
c) If a water or sewer provider makes an affirmative decision to impose the charge, the water or sewer provider shall inform the Department of Revenue in writing of such decision when it begins to impose the charge. [305 ILCS 21/25]