§ 423.2325 Provision of applicable discounts.
(a) General rule. On behalf of the manufacturers, Part D sponsors must provide applicable beneficiaries with applicable discounts on applicable drugs at the point-of-sale.
(b) Discount determination. (1) Part D sponsors must determine the following:
(i) Whether an enrollee is an applicable beneficiary (as defined in § 423.100).
(ii) Whether a Part D drug is an applicable drug (as defined in § 423.100).
(iii) The amount of the applicable discount (as defined in § 423.2305) to be provided at the point-of-sale.
(2) Part D sponsors must make retroactive adjustments to the applicable discount as necessary to reflect changes to the claim or beneficiary eligibility determined after the date of dispensing.