; and (2) encourages regional infrastructure accelerators to provide assistance and communicate best practices and financing and funding opportunities to State, local, and regional public entities, to provide assistance with applications for Federal funding opportunities, to promote innovative financing best practices, and to reduce costs and risks to taxpayers. 3. Regional infrastructure accelerator program Using amounts appropriated under section 10(1), the Secretary shall establish a regional infrastructure accelerator (RIA) program to provide initial and subsequent grants to RIAs in accordance with the requirements of this Act. 4. Structure of regional infrastructure accelerators (a) In general To be eligible to receive a grant under this Act, an RIA shall have a board of directors. (b) Board of directors (1) Composition The board of directors of an RIA shall include at least 1 representative of a State, local, or regional public entity in the area served by the RIA. (2) Appointment The members of the board of directors of an RIA shall be initially appointed by the person or entity that submitted an application on behalf of the RIA under section 5(a). Subsequent appointments to the board shall be made in accordance with such bylaws as may be adopted by the board. (3) Duties The duties of the board of directors of an RIA shall include— (A) developing a final regional infrastructure accelerator plan for the RIA, based on the proposed plan submitted on behalf of the RIA under section 5(b); (B) selecting State, local, and regional public entities to receive subgrants from the RIA under section 6; and (C) submitting a report to the Secretary under subsection 5(d). (4) Requirements to approve plan In carrying out its duties under paragraph (3)(A), the board of directors of an RIA shall consider public stakeholder input from— (A) a public project sponsor with experience in infrastructure financing