Ill. Admin. Code tit. 50, § 751.20
a) The term "compiles insurance statistics" as used in Article VII-A includes but is not limited to:
4) Preparing pure premiums, loss ratios, hazard analysis, risk analysis, classifications of municipal fire defenses and other information relating to past and prospective loss experience.
b) The term "prepares insurance policies, bond forms, and underwriting rules" as used in Article VII-A, includes but is not limited to such functions as:
2) Obtaining information from members, subscribers and service purchasers relative to the preparation of underwriting rule manuals, statistical plans, classifications and other schedules.
c) The term "activities of advisory organization" as used in Article VII-A includes, in addition to primary functions, other permitted related functions such as:
d) The term "furnishes that which it compiles and prepares to insurance companies who are its only members and subscribers" as used in Article VII-A includes but is not limited to such functions as:
g) The term "permit any admitted company to become a member of or a subscriber to such organization at a reasonable cost and without discrimination, or to withdraw therefrom" as used in Article VII-A, requires advisory organizations to permit admitted companies to become members or subscribers at a reasonable cost based upon a schedule or formula that would not affect a company large or small unfairly.
h) The term "subject to the provisions of this Article two or more companies are authorized to act in concert with each other and with others with respect to any activities of an advisory organization as authorized in the Article" taken in conjunction with the term, Any group, association or organization of admitted companies which engages in joint underwriting or joint reinsurance through any group, association or organizations or by standing agreement among the members of such organization, which has complied with the applicable provision of this Article, are authorized to conduct joint reinsurance and joint underwriting activities relative to individual risks in this State as used in Article VII-A authorizes: