; (iv) how the State will use data collected on child abuse or neglect to prevent child fatalities and near fatalities; (v) how the State will implement efforts to prevent child fatalities and near fatalities; (vi) the cooperation of State law enforcement officials, court of competent jurisdiction, and appropriate State agencies providing human services in the investigation, assessment, prosecution, and treatment of child abuse and neglect; (vii) the steps the State will take to improve the professional development, retention, and supervision of caseworkers and how the State will measure the effectiveness of such efforts; (viii) the State’s plan to ensure each child under the age of 3 who is involved in a substantiated case of child abuse or neglect will be referred to the State’s child find system under section 635(a)(5) of the Individuals with Disabilities Education Act ( 20 U.S.C. 1435(a)(5) ) in order to determine if the child is an infant or toddler with a disability (as defined in section 632(5) of such Act ( 20 U.S.C. 1432(5) )); (ix) the State’s plan to improve, as part of a comprehensive State strategy led by law enforcement, professional development for child protective services workers and their appropriate role in identifying, assessing, and providing comprehensive services for children who are sex trafficking victims, in coordination with law enforcement, juvenile justice agencies, runaway and homeless youth shelters, and health, mental health, and other social service agencies and providers; (x) the services to be provided under the grant to individuals, families, or communities, either directly or through referrals, aimed at preventing the occurrence of child abuse and neglect; (xi) the State’s efforts to ensure professionals who are required to report suspected cases of child abuse and neglect are aware of their responsibilities under subparagraph (A)(i) and receive professional development relating to performing such responsibilities that is specific to their profession and workplace