; and (iii) by moving the margin 2 ems to the left; and (B) by adding at the end the following new paragraph: (10) No payment shall be made under this title to a State with respect to expenditures incurred by it for payment for services provided by an other specified entity (as defined in paragraph (9)(D)) unless the contract between the State and the entity for the provision of such services provides, with respect to covered outpatient drugs and related administrative services (as applicable) provided by the entity (or by a pharmacy benefit manager on behalf of the entity under a contract or other arrangement with the entity), that payment for such drugs and related administrative services is based on a pharmacy price reimbursement model described in section 1927(e)(6)(A). . (3) Effective date The amendments made by this subsection apply to contracts between States and pharmacy benefit managers and designated entities (as defined in section 1927(e)(6) of the Social Security Act, as added by paragraph (1)) that have an effective date beginning on or after the date that is 18 months after the date of enactment of this Act. (b) Ensuring accurate payments to pharmacies under Medicaid (1) In general Section 1927(f) of the Social Security Act ( 42 U.S.C. 1396r–8(f) ) is amended— (A) by striking and after the semicolon at the end of paragraph (1)(A)(i) and all that precedes it through (1) and inserting the following: (1) Determining pharmacy actual acquisition costs The Secretary shall conduct a survey of retail community pharmacy drug prices to determine the national average drug acquisition cost as follows: (A) Use of vendor The Secretary may contract services for— (i) with respect to retail community pharmacies, the determination of retail survey prices of the national average drug acquisition cost for covered outpatient drugs based on a monthly survey of such pharmacies; and