health clinics (1) In general Beginning with fiscal year 2024, with respect to services furnished on or after January 1, 2024, and each succeeding fiscal year, a State may provide under the State plan under this title (or under a waiver of such plan) for payment for services described in section 1905(a)(31) furnished by a certified community behavioral health clinic (in this subsection referred to as a clinic ) in accordance with the provisions of this subsection. (2) Payment for services in initial year and every third year Subject to paragraphs (4), (5), and (6), for services furnished by a clinic in the first fiscal year for which a State elects to provide for payment for services described in section 1905(a)(31) in accordance with the payment option under paragraph (1), and every third fiscal year thereafter in which the State makes such an election, the State shall provide for payment for such services in an amount (calculated on the basis of daily visits or unduplicated monthly visits, at the State’s election) that is equal to 100 percent of the average costs of the clinic of furnishing any of the services described in paragraph (31) of section 1905(a) during the 2 fiscal years preceding the fiscal year involved which are reasonable and related to the costs of furnishing such services