220 ILCS 5/4-402
This amendatory Act of 1985 shall not affect pending actions or proceedings, civil or criminal, in any court or other tribunal brought by or against the People of the State of Illinois or the Illinois Commerce Commission or by any other person, firm or corporation under the provisions of this Act or any other Act establishing or conferring power on the Commission, nor abate any causes of action arising thereunder, but the same may be instituted, prosecuted and defended with the same effect as though this amendatory Act had not been passed. Any investigation, hearing or proceeding, instituted or conducted by the Commission prior to the taking effect of this amendatory Act shall be conducted and continued to a final determination by the Commission with the same effect as if this amendatory Act had not been passed.
All findings, orders, decisions, rules and regulations issued or promulgated by the Commission under this Act or any other Act establishing or conferring power on the Commission, shall continue in force; and the Commission hereby created shall have all powers with respect to said findings, orders, decisions, rules and regulations as though said findings, orders, decisions, rules and regulations had been made, issued or promulgated by the Commission under this amendatory Act. Notwithstanding the provisions of this Section, where applicable, the Commission shall amend its findings, orders, decisions, rules and regulations to conform to the provisions of this Act as soon as practicable after the effective date.
220 ILCS 5/4-402