50 Ill. Adm. Code 2030.10
Purpose
Section 2030.10 Purpose
The purpose of this Part is to prescribe the standard
template for drug formularies, which health insurance issuers must post on
their public websites for health products that they offer in this State.
Nothing in this Part requires a health product to use a formulary, though
nothing in this Part prevents the applicability of any other law or regulation
requiring a health product to use a formulary.