; (2) in subsection (g)— (A) in paragraph (1), by inserting before the period at the end the following: , except that the PDP sponsor of a prescription drug plan shall treat the presentation of a prescription to a participating pharmacy, which is transmitted to the plan by the pharmacy, as a request for a coverage determination (including with respect to prior authorization, step therapy, or quantity limits) and, in applying such paragraphs of section 1852(g), the response to such transmittal shall be treated as a determination by the sponsor ; and (B) in paragraph (2), in the first sentence, by inserting (or a participating pharmacy, on behalf of such individual, through transmission of a prescription as described in paragraph (1)) after a part D eligible individual who is enrolled in the plan ; and (3) in subsection (h)— (A) in paragraph (1), in the second sentence, by inserting (or a participating pharmacy, on behalf of such individual) after the part D eligible individual ; and (B) in paragraph (2), by inserting (or a participating pharmacy, on behalf of such individual) after A part D eligible individual who is enrolled in a prescription drug plan offered by a PDP sponsor . (4) Effective date The amendments made by paragraphs (2) and (3) shall apply to plans years beginning on or after January 1, 2019. 3. Requiring drug manufacturers to provide drug rebates for drugs dispensed to low-income individuals (a) In general Section 1860D–2 of the Social Security Act ( 42 U.S.C. 1395w–102 ) is amended— (1) in subsection (e)(1), in the matter preceding subparagraph (A), by inserting and subsection (f) after this subsection