; (B) a description of how the State proposes to— (i) identify dual status youths; (ii) identify individuals who are at risk of becoming dual status youths; (iii) identify common characteristics shared by dual status youths in the State; and (iv) determine the prevalence of dual status youths in the State; (C) a description of current and proposed practices and procedures that the State intends to use to— (i) screen and assess dual status youths for risks and treatment needs; (ii) provide targeted and evidence-based services, including educational, behavioral health, and pro-social treatment interventions for dual status youths and their families; and (iii) provide for a lawful process to enhance or ensure the abilities of the State and any relevant agencies to share information and data about dual status youths while maintaining confidentiality and privacy protections under State and Federal law; and (D) a certification that the State has involved local governments, as appropriate, in the development, expansion, modification, operation, or improvement of proposed policy and practice reforms to address the needs of dual status youths. (2) No supplantation of other funds Any amounts paid to a State under a grant under this section shall be used to supplement and not supplant other State expenditures on dual status youths or children involved with either the child welfare or juvenile justice systems. (3) Evaluation Up to 10 percent of the amount made available to carry out this section for a fiscal year shall be made available to the Secretary to evaluate the effectiveness of the projects funded under this section, using a methodology that— (A) includes random assignment whenever feasible, or other research methods that allow for the strongest possible causal inferences when random assignment is not feasible