(a) Definition. As used in this Section, "proceedingproceeding"proceeding" includes the filing of any rate, rule, or form and any rulemaking conducted pursuant to this Section.215 ILCS 5/143.19.4(a)" includes the filing of any rate, rule, or form and any rulemaking conducted pursuant to this Section.

(b)–(c) 1 Prohibitions; refusal to insure. (1) No insurer shall refuse to issue or renew a policy of automobile insurance, bond, or any other insurance based on the ownership or operation of a motor vehicle based in whole or in part on any of the prohibited underwriting and rating factors set forth in subsection (c), or use those factors to determine the terms of coverage or placement in a particular affiliate within an insurance company group. (2) Classification plans, rating plans, rating tier placement factors, scoring models, rules, rates, premiums, or any other method of establishing the premium to be paid by an automobile insurance policyholder or covered driver, and the modification thereof, based in whole or in part on any of the prohibited underwriting and rating factors in subsection (c) are unfairly discriminatory. (c) Prohibited factors. With respect to underwriting and rating a policy of automobile insurance, the use of the following factors shall be prohibited: (1) sex or gender; (2) marital status; (3) race; (4) creed; (5) national origin; (6) religion; (7) age; (8) employment or occupation; (9) education level attained; (10) home ownership; (11) consumer credit information or other credit-based score; (12) the absence of prior insurance; (13) the amount or provider of prior insurance coverage; (14) any measure of a consumer's price elasticity of demand; (15) the zip code, or any territorial designation geographically smaller than the zip code, in which the policyholder resides; and (16) the level of income or wealth.

(d) Years of driving experience. Notwithstanding item (7) of subsection (c), an insurer may consider the number of years of driving experience of an applicant for the purposes of underwriting and rating.

(e) 2 Territory or any other geographical characteristic. Territory or any other geographical characteristic shall not be considered for the purposes of underwriting a policy of automobile insurance, including, but not limited to, any decision to sell, refuse to sell, cancel, or non-renew, and the terms of the policy of automobile insurance. Notwithstanding item (15) of subsection (c), an insurer may, for rating purposes, use a territorial factor that is not prohibited if the territorial factor does not have more than a 25% impact on the premium that would otherwise be charged.

(f) 3 Prohibited business practices. Every insurer selling a policy of automobile insurance in Illinois shall demonstrate that its marketing, underwriting, rating, claims handling, fraud investigations, and any algorithm or model used for those business practices do not disparately impact any group of customers based on race, color, national or ethnic origin, religion, sex, sexual orientation, disability, gender identity, or gender expression.

(g) 4 Prior approval of rates. (1) No rate shall be approved or remain in effect that is excessive, inadequate, unfairly discriminatory, or otherwise in violation of this Section. In considering whether a rate is excessive, inadequate, or unfairly discriminatory, no consideration shall be given to the degree of competition, and the Director shall consider whether the rate mathematically reflects the insurance company's investment income. (2) Every insurer that desires to change any rate shall file a complete rate application with the Director. A complete rate application shall include all data necessary to justify the proposed rate and such other information as the Director may require. The applicant shall have the burden of proving that the requested rate change is justified and meets the requirements of this Section. (3) The Director shall notify the public of any application by an insurer for a rate change. The application shall be deemed approved 60 days after public notice unless: (A) the Director disapproves the application; (B) a consumer or the consumer's representative requests a hearing within 45 days after the public notice and the Director grants the hearing, or the Director determines not to grant the hearing and issues written findings in support of that decision; or (C) the Director, on the Director's own motion, determines to hold a hearing. If the proposed rate adjustment exceeds 7% of the then-applicable rate for personal lines insurance or 15% for commercial lines insurance, then the Director must hold a hearing upon a timely request. If the application is incomplete or otherwise subject to disapproval, then the Director may extend the application review process by up to 60 days with the agreement of the applicant.

(h) [right to inspect] 5 Right of the public to inspect rates. All information provided to the Director pursuant to this Section shall be available for public inspection.

(i) Right of the public to participate. (1) Any person may initiate or intervene in any proceedingproceeding"proceeding" includes the filing of any rate, rule, or form and any rulemaking conducted pursuant to this Section.215 ILCS 5/143.19.4(a) permitted or established pursuant to this Section and challenge any action of the Director under this Section. (2) The Director or a court shall award reasonable advocacy and witness fees and expenses to any person who demonstrates that the person represents the interests of consumers and that the person made a substantial contribution to the adoption of any order, regulation, or decision by the Director or a court. Where such advocacy occurs in response to a rate application, the award shall be paid by the applicant.

(h) [Rules] Rules. (1) The Department shall, no later than 90 days after the effective date of this amendatory Act of the 104th General Assembly, adopt rules that guide the filing and approval of rates, rules, and forms pursuant to this Section. The Director shall develop formulas for evaluating rates and any rules or forms that impact rates that will be used to determine whether to approve or disapprove any filing. (2) Until the rules described in paragraph (1) take effect, no insurer may file for a change in any rate, rule, or form that would result in a rate increase. If, before the adoption of the rules described in paragraph (1), an insurer asserts that it would not be able to earn a reasonable rate of return without an increase, then it may request a hearing. If it is determined after a hearing that a rate increase is needed to earn a reasonable rate of return, then the insurer shall be allowed to make a change that affords it the minimum increase required to earn a reasonable rate of return. (3) The Department shall, no later than 180 days after the effective date of this amendatory Act of the 104th General Assembly, adopt rules that implement the testing of insurer business practices for compliance with this Section.

(j) Fees. All insurers subject to the provisions of this Section shall be assessed a fee of 0.05% of their total earned premium from the prior calendar year. The fee shall be payable to the Department no later than July 1 of each calendar year and shall be used by the Department to implement the provisions of this Section.