expenditures of such individuals for health care. For purposes of this subparagraph, the Secretary shall specify all applicable measures for determining quality, access, and expenditures. (C) Best practices Not later than October 1, 2020, the Secretary shall make publicly available on the Internet website of the Centers for Medicare & Medicaid Services best practices for designing and implementing a SUD-focused State plan amendment, based on the experiences of States that have State plan amendments approved under this section that include SUD-eligible individuals. (D) Definitions For purposes of this paragraph: (i) SUD-eligible individuals The term SUD-eligible individual means, with respect to a State, an individual who satisfies all of the following: (I) The individual is an eligible individual with chronic conditions. (II) The individual is an individual with a substance use disorder. (ii) SUD-focused State plan amendment The term SUD-focused State plan amendment means a State plan amendment under this section that is designed to provide health home services primarily to SUD-eligible individuals, as determined by the Secretary. .