; and (II) give preference to public housing agencies that partner with organizations that provide home visiting services, such as the services authorized under section 511 of the Social Security Act ( 42 U.S.C. 711 ) or locally funded initiatives, if those services are available in the service area of the public housing agency. (C) Services required to be offered to families receiving vouchers (i) In general A public housing agency that receives assistance under this paragraph— (I) shall offer, to each eligible family that the agency selects to receive a voucher, mobility-related services to help the family move to an opportunity area for children with access to— (aa) a high-performing school; or (bb) high-quality childcare and early education; (II) may not require an eligible family to participate in the mobility-related services described in subclause (I) as a condition of receipt of a voucher; and (III) shall adopt mobility-related policies, to be specified by the Secretary. (ii) Minimum assortment of services and policies The Secretary shall establish a minimum assortment of types of mobility-related services that a public housing agency shall offer, and mobility-related policies that a public housing agency shall adopt, under clause (i) based on promising practices and evidence of the effectiveness of the services and policies. (iii) Specific services The types of mobility-related services required to be offered under clause (i)— (I) shall include a customized approach to enable a successful transition to opportunity areas for children; and (II) may include counseling and continued supportive services for families. (iv) Opportunity areas for children; high-performing schools