A public housing agency may provide to a mixed-finance project assistance from the Operating Fund under section 1437g of this title, assistance from the Capital Fund under such section, or both forms of assistance. A public housing agency may, in accordance with regulations established by the Secretary, provide capital assistance to a mixed-finance project in the form of a grant, loan, guarantee, or other form of investment in the project, which may involve drawdown of funds on a schedule commensurate with construction draws for deposit into an interest-bearing escrow account to serve as collateral or credit enhancement for bonds issued by a public agency, or for other forms of public or private borrowings, for the construction or rehabilitation of the development.

To the extent deemed appropriate by the Secretary, assistance used in connection with the costs associated with the operation and management of mixed-finance projects may be used for funding of an operating reserve to ensure affordability for low-income and very low-income families in lieu of the availability of operating funds for public housing units in a mixed-finance project.