; or (2) the largest populations of individuals in foster care. (f) Matching funds The Secretary may not award a grant under this subsection to an eligible entity unless the eligible entity agrees, with respect to the costs to be incurred by the eligible entity in carrying out the activities described in subsection (b), to make available non-Federal contributions (in cash or in kind) toward such costs in an amount that is not less than 10 percent of the total amount of Federal funds provided in the grant. (g) Coordination with Medicaid An eligible entity awarded grant under this section shall coordinate activities under each such program with the State Medicaid program to ensure that current or former foster youth have maximum access and involvement in such activities. (h) Evaluation The Secretary shall, by grant, contract, or interagency agreement, conduct rigorous and well-designed evaluations of the programs for which a grant is made under this section. (i) Reports (1) To the secretary (A) An eligible entity awarded a grant under this section shall submit interim reports to the Secretary on the activities carried out under the project, including the number of eligible individuals served, and on the conclusion of the project, shall submit a final report to the Secretary on the activities carried out under a grant made under this section. (B) Each such report shall include data on participant outcomes related to earnings, employment, education, credential attainment, participant demographics, and other data specified by the Secretary. (2) To the congress Not later than December 31 of each year, the Secretary shall submit to the appropriate Congressional committees a report for the preceding fiscal year on— (A) the demographics of the participants in the projects for which a grant is made under this section; (B) results of the evaluations required by subsection (h); (C) best practices and promising practices used in the projects; (D) the nature of any technical assistance provided to grantees under this section