with the consent of the agency or organization concerned, accept and utilize equipment, facilities, or the services of employees of any Federal, State, or local public agency or instrumentality, educational institution, or nonprofit agency or organization and, in connection with the utilization of such services, may make payments for transportation while away from their homes or regular places of business and per diem in lieu of subsistence en route and at place of such service, in accordance with the provisions of section 5703 of title 5;

utilize, contract with and act through, without regard to section 6101 of title 41, any Federal, State, or local public agency or instrumentality, educational institution, or non-profit agency or organization with the consent of the agency or organization concerned, and any funds available to said officers for carrying out their respective functions, powers, and duties shall be available to reimburse or pay any such agency or organization; and, whenever in the judgment of any such officer necessary, he may make advance, progress, or other payments with respect to such contracts without regard to the provisions of subsections (a) and (b) of section 3324 of title 31; and

make expenditures for all necessary expenses, including preparation, mounting, shipping, and installation of exhibits; purchase and exchange of technical apparatus; and such other expenses as may, from time to time, be found necessary in carrying out their respective functions, powers, and duties: Provided, That funds made available for administrative expenses in carrying out the functions, powers, and duties imposed upon the Secretary of Housing and Urban Development and the Federal Home Loan Bank Agency,1 respectively, by or pursuant to law may at their option be consolidated into a single administrative expense fund accounts of such officer or agency for expenditure by them, respectively, in accordance with the provisions hereof.