42 C.F.R. § 423.800 Administration of subsidy program.
Title 42 - Public Health
(a) Notification of eligibility for low-income subsidy. CMS notifies the Part D sponsor offering the Part D plan, in which a subsidy eligible individual is enrolled, of the individual's eligibility for a subsidy under this section and the amount of the subsidy. (b) Reduction of premium or cost-sharing by PDP sponsor or organization. The Part D sponsor offering the Part D plan, in which a subsidy eligible individual is enrolled must reduce the individual's premiums and cost-sharing as applicable, and provide information to CMS on the amount of those reductions, in a manner determined by CMS. The Part D sponsor must track the application of the subsidies under this subpart to be applied to the out-of-pocket threshold. (c) Reimbursement for cost-sharing paid before notification of eligibility for low-income subsidy. The Part D sponsor offering the Part D plan must reimburse subsidy eligible individuals, and organizations paying cost-sharing on behalf of such individuals, any excess premiums and cost-sharing paid by such individual or organization after the effective date of the individual's eligibility for a subsidy under this subpart.
Title 42: Public Health
PART 423—VOLUNTARY MEDICARE PRESCRIPTION DRUG BENEFIT
Subpart P—Premiums and Cost-Sharing Subsidies for Low-Income Individuals
§ 423.800 Administration of subsidy program.

