; and (2) update such method and determination at least every 5 years. 5. Implementing the evaluation framework for Head Start programs (a) Evaluation method The Assistant Secretary for the Administration for Children and Families shall implement the evaluation method developed pursuant to section 4(a) in the Head Start program as a voluntary mechanism for interested Head Start programs or Early Head Start centers to evaluate the extent to which such programs or centers have effectively implemented the interventions, best practices, curricula, and staff trainings identified pursuant to section 2, with minimal burden or disruption to programs and centers interested in participating. (b) Technical assistance The Assistant Secretary for the Administration for Children and Families shall provide guidance, tools, resources, and technical assistance to grantees for implementing and evaluating interventions, best practices, curricula, and staff trainings identified pursuant to section 2 and optimizing the performance of such grantees on the annual evaluations. 6. Best Practice Centers The Assistant Secretary for the Administration for Children and Families may fund up to 5 Best Practice Centers in Early Childhood Training in universities and colleges to prepare future Head Start agencies and staff able to deliver the interventions, best practices, curricula, and staff trainings identified pursuant to section 2. 7. Funding (a) Authorization of appropriations There is authorized to be appropriated $100,000,000 for the period of fiscal years 2021 through 2030 for carrying out sections 3(b), 4, 6, and 7. (b) Availability of appropriations Amounts authorized to be appropriated by subsection (a) are authorized to remain available until expended.