; and (2) remove any provision requiring an accountable care organization to assume responsibility for repayment of any shared losses or participate in a two-sided risk model before the organization has participated for at least 3 years in any program subject to the provisions of part 425 of title 42, Code of Federal Regulations, or any successor regulation, provided that such an organization shall be allowed to elect to participate in such two-sided risk models or models requiring repayment of such losses. (d) Ensuring fair and accurate benchmarks Prior to the beginning of the first performance year (as defined for purposes of subsection (a)) that begins after the date of the enactment of this Act, the Secretary of Health and Human Services shall revise part 425 of title 42, Code of Federal Regulations, to remove Medicare beneficiaries who are assigned to an accountable care organization from the methodology for calculating the regional expenditures used to establish, adjust, and update the benchmark expenditures for ACO performance periods beginning on or after July 1, 2019. 3. Providing educational and technical support for the Medicare shared savings program Section 1899 of the Social Security Act ( 42 U.S.C. 1395jjj ) is amended by adding at the end the following new subsection: (n) Educational and technical support (1) In general The Secretary shall establish a program to assist eligible ACOs in meeting start-up and ongoing operational costs associated with establishing and participating in the shared savings program established under subsection (a). The Secretary shall establish through notice-and-comment rulemaking the requirements for participation and use of funds in the program established in the preceding sentence. (2) Reduction in shared savings payments The Secretary shall reduce any shared savings payment owed to an ACO under subsection (d) in an amount equal to any funds provided to such ACO under the program established under paragraph (1). . 4. Advanced payment model incentive, participation,