On and after all necessary expenses in connection with the management and operation of projects transferred to the Authority by Executive Order Numbered 7732 of , as modified by Executive Order Numbered 7839 of , may be considered as nonadministrative expenses, notwithstanding the provisions of , and be paid from the rents received from each transferred project.section 712a of title 15May 10, 19391939-05-10October 27, 19371937-10-27March 12, 19381938-03-12