; or (B) submitting multiple applications to operate a PACE program in the same service area. . (b) Effective date The amendments made by this section shall take effect on the date that is 180 days after the date of enactment of this Act. 405. Ensuring Medicare-only PACE program enrollees have a choice of prescription drug plans under Medicare part D Section 1860D–21(f) of the Social Security Act ( 42 U.S.C. 1395w–131(f) ) is amended— (1) in paragraph (1), by striking and (3) and inserting (3), and (4) ; and (2) by adding at the end the following new paragraph: (4) Ensuring choice of prescription drug plans (A) In general For plan years beginning on or after January 1, 2024, subject to the succeeding provisions of this paragraph, an applicable PACE program enrollee may elect to enroll in a qualified standalone prescription drug plan, in accordance with rules established by the Secretary pursuant to this paragraph, while enrolled under a PACE program. (B) Definition of applicable pace program enrollee; qualified standalone prescription drug plan In this paragraph: (i) Applicable pace program enrollee The term applicable PACE program enrollee means a part D eligible individual who— (I) is not entitled to medical assistance under title XIX; and (II) is enrolled under a PACE program offered by a PACE provider. (ii) Qualified standalone prescription drug plan The term qualified standalone prescription drug plan means, with respect to an applicable PACE program enrollee, a prescription drug plan— (I) that is not an MA–PD plan; (II) that is not operated by the PACE program under which the individual is enrolled