; application to waivers. Title III—Continuing Support for Child and Family Services Sec. 301. Supporting and retaining foster families for children. Sec. 302. Extension of child and family services programs. Sec. 303. Improvements to the John H. Chafee foster care independence program and related provisions. Title IV—Continuing Incentives to States to Promote Adoption and Legal Guardianship Sec. 401. Reauthorizing adoption and legal guardianship incentive programs. Title V—Technical Corrections Sec. 501. Technical corrections to data exchange standards to improve program coordination. Sec. 502. Technical corrections to State requirement to address the developmental needs of young children. Title VI—Ensuring States reinvest savings resulting from increase in adoption assistance Sec. 601. Delay of adoption assistance phase-in. Sec. 602. GAO study and report on State reinvestment of savings resulting from increase in adoption assistance. I Investing in Prevention and Family Services 101. Purpose The purpose of this title is to enable States to use Federal funds available under parts B and E of title IV of the Social Security Act to provide enhanced support to children and families and prevent foster care placements through the provision of mental health and substance abuse prevention and treatment services, in-home parent skill-based programs, and kinship navigator services. A Prevention Activities under Title IV–E 111. Foster care prevention services and programs (a) State option Section 471 of the Social Security Act ( 42 U.S.C. 671 ) is amended— (1) in subsection (a)(1), by striking and and all that follows through the semicolon and inserting , adoption assistance in accordance with section 473, and, at the option of the State, services or programs specified in subsection (e)(1) of this section for children who are candidates for foster care or who are pregnant or parenting foster youth and the parents or kin caregivers of the children, in accordance with the requirements of that subsection;