Moneys in the General Insurance Fund not needed for the current operations of the Department of Housing and Urban Development with respect to mortgages and loans which are the obligation of the General Insurance Fund shall be deposited with the Treasurer of the United States to the credit of such Fund, or invested in bonds or other obligations of, or in bonds or other obligations guaranteed as to principal and interest by, the United States or any agency of the United States: Provided, That such moneys shall to the maximum extent feasible be invested in such bonds or other obligations the proceeds of which will be used to directly support the residential mortgage market. The Secretary may, with the approval of the Secretary of the Treasury, purchase in the open market debentures issued as obligations of the General Insurance Fund or issued prior to August 10, 1965, under other provisions of this chapter, except debentures issued under the Mutual Mortgage Insurance Fund. Such purchases shall be made at a price which will provide an investment yield of not less than the yield obtainable from other investments authorized by this section. Debentures so purchased shall be canceled and not reissued.
Premium charges, adjusted premium charges, and appraisal and other fees received on account of the insurance of any mortgage or loan which is the obligation of the General Insurance Fund, the receipts derived from the property covered by such mortgages and loans and from the claims, debts, contracts, property, and security assigned to the Secretary in connection therewith, and all earnings on the assets of the Fund shall be credited to the General Insurance Fund. The principal of, and interest paid and to be paid on, debentures which are the obligation of such Fund, cash insurance payments and adjustments, and expenses incurred in the handling, management, renovation, and disposal of properties acquired, in connection with mortgages and loans which are the obligation of such Fund, shall be charged to such Fund.
The General Insurance Fund shall not be used for carrying out the provisions of section 1709 of this title, except as determined by the Secretary, or the provisions of section 1715e of this title to the extent that they involve mortgages the insurance for which is the obligation of the Cooperative Management Housing Insurance Fund created by section 1715e(k) of this title, or the provisions of sections 1715n(e), 1715x(a)(2), 1715z, 1715z–1 and 1715z–2  of this title; and nothing in this section shall apply to or affect any mortgages, loans, commitments, or insurance under such provisions.