assistance, which should take into account evidence-based best practices. 4. Data collection (a) In general The Secretary of Health and Human Services, in consultation with State and local public officials responsible for administering child welfare programs, child welfare advocates, pediatric mental health experts, and researchers shall— (1) identify data elements needed to track— (A) the number of children receiving an initial mental health screening required under section 422(b)(15)(A)(i) of the Social Security Act ( 42 U.S.C. 622(b)(15)(A) ) (as amended by section 2(a) of this Act)