; (iv) the number who receive services while in the care of their birth parents; (v) the number who receive post-reunification services within 1 year after a reunification has occurred; and (vi) the number who experienced a return to out-of-home care within 1 year after reunification. (F) Secretary’s report to Congress The Secretary shall submit an annual report to the Committee on Health, Education, Labor, and Pensions and the Committee on Appropriations of the Senate and the Committee on Education and the Workforce and the Committee on Appropriations of the House of Representatives that includes the information described in subparagraph (E) and recommendations or observations on the challenges, successes, and lessons derived from implementation of the grant program. (G) Assisting States’ implementation The Secretary shall use the amount reserved under subparagraph (B)(i)(I) to provide written guidance and technical assistance to support States in complying with and implementing this paragraph, which shall include— (i) technical assistance, including programs of in-depth technical assistance, to additional States, territories, and Indian Tribes and tribal organizations in accordance with the substance-exposed infant initiative developed by the National Center on Substance Abuse and Child Welfare; (ii) guidance on the requirements of this Act with respect to infants born with and identified as being affected by substance use or withdrawal symptoms or fetal alcohol spectrum disorder, as described in clauses (ii) and (iii) of section 106(b)(2)(B), including by— (I) enhancing States’ understanding of requirements and flexibilities under the law, including by clarifying key terms; (II) addressing state-identified challenges with developing, implementing, and monitoring plans of safe care, including those reported under subparagraph (C)(i)(II)