Child abuse, particularly neglect, is often preventable because many causes of harm stem from poverty, lack of social connections, substance use disorders, mental illness, lack of childcare, and other family support shortages. Prevention of child abuse and neglect starts with family support in these areas. The federal government recognized this need for prevention, and through considerable bipartisan support, passed the Family First Prevention Services Act on February 9, 2018. The Family First Prevention Services Act was designed to divert investment away from long-term foster care and toward programs that prevent unnecessary placement and child protective services interventions. The Family First Prevention Services Act restricts the state’s use of federal funds for institutional foster care placements and uses those savings to fund reimbursements for evidence-based family preservation. The requirement for evidence-based prevention is a first in child-welfare federal law, and compliance with this requirement requires public-private partnership with agencies implementing the models, infrastructure, and evaluation standards that most states must build to be eligible for the new funding. This evaluation research analyzed how the stringent guidelines for prevention funding and the requirement of federally approved evidence-based practice programming affect the implementation of the Family First Prevention Services Act in Nebraska and Colorado.