; and (B) the findings and conclusions resulting from such reviews. (e) Timing The Secretary shall— (1) complete the initial reviews required by subsections (a) and (b) not later than 1 year after the date of enactment of this Act; and (2) update such reviews and the findings and conclusions therefrom at least every 5 years. (f) Reporting Not later than 1 year after the date of enactment of this Act, and every 5 years thereafter, the Secretary shall submit a report to the Congress on the results of implementing this section. 3. Implementing the interventions in Head Start programs (a) In general The Assistant Secretary for the Administration for Children and Families shall award grants to participating Head Start agencies to implement the interventions, best practices, curricula, and staff trainings that are identified pursuant to section 2. (b) Requirements The Assistant Secretary shall ensure that grants awarded under this section are awarded to grantees representing a diversity of geographic areas across the United States, including urban, suburban, and rural areas. 4. Evaluating implementation of interventions in Head Start programs (a) In general The Secretary of Health and Human Services, acting through the Assistant Secretary for Planning and Evaluation and in coordination with the Assistant Secretary for the Administration for Children and Families, shall— (1) determine whether the interventions, best practices, curricula, and staff trainings implemented pursuant to section 3— (A) are effectively implemented pursuant to section 3 and other relevant provisions of law such that the anticipated effect sizes of the interventions, best practices, curricula, and staff trainings are achieved; and (B) yield long-term savings; (2) develop a method for making the determination required by paragraph (1)