House Bill 4353 would amend the Insurance Code to provide that a health insurance policy delivered, issued for delivery, or renewed in Michigan after December 31, 2022, that provides coverage for prescription drugs must apply any amount paid by the insured (or on behalf of the insured by another person that is not an unauthorized payer) when calculating the insured person’s overall contribution to any out-of-pocket maximum or cost-sharing requirement. If any provision of the bill conflicted with a federal law, the federal law would prevail.