; and (2) for such other purposes as the RIA, after notifying the Secretary, determines appropriate. (c) Application A State, local, or regional public entity desiring a subgrant from an RIA under this section may submit to the RIA an application for a subgrant at such time, in such manner, and containing such information as the RIA may reasonably require. (d) Use of funds The amounts of a subgrant received by a State, local, or regional public entity from an RIA under this section may be used for payment of the following costs associated with a covered infrastructure project: (1) Project planning, feasibility studies, economic assessments, cost-benefit analyses, and public benefit studies. (2) Value-for-money analyses. (3) Design and engineering. (4) Financial planning (including the identification of funding and financing options). (5) Permitting, environmental review, and regulatory processes. (6) Assessment of the impacts of potential projects on the area, including the effect on communities and environment. (7) The workforce and wages and benefits, as well as assessment of infrastructure vulnerability and resilience to the impacts of climate change and other risks. (8) Public outreach and community engagement. (e) Amount A subgrant made by an RIA under this section may not be in an amount that is greater than $300,000 or 75 percent of the projected cost of activities described in subsection (d) associated with the covered infrastructure project concerned, whichever is less. The recipient of the subgrant shall provide funding for the remaining balance of such costs. (f) Limitation Funds made available under this section may not be used to pay for work already completed on a covered infrastructure project. 7. Administrative provisions (a) Prevailing rate of wage (1) In general The Secretary shall take such action as may be necessary to ensure that all laborers and mechanics employed by contractors or subcontractors on construction work performed on projects assisted with a grant under this Act shall be paid