Amends the Illinois Insurance Code. Provides that a health benefit plan amended, delivered, issued, or renewed on or after January 1, 2023 that provides prescription drug coverage or its contracted pharmacy benefit manager shall not engage in or require an enrollee to engage in specified prohibited acts. Provides that a clinician-administered drug supplied shall meet the supply chain security controls and chain of distribution set by the federal Drug Supply Chain Security Act. Provides that the Department of Insurance may adopt rules as necessary to implement the provisions. Defines terms. Makes conforming changes in the State Employees Group Insurance Act of 1971, the Counties Code, the Illinois Municipal Code, the School Code, the Health Maintenance Organization, and the Voluntary Health Services Plans Act.