It is hereby declared to be the policy of this state to accomplish the charitable and public purposes of this act¹ that each authority shall manage and operate its housing projects in an efficient manner so as to enable it to fix the rentals or payments for dwelling accommodations at low rates consistent with its providing decent, safe and sanitary dwelling accommodations for persons of low income and that no authority shall construct or operate any housing project for profit, or as a source of revenue to the city or county. To this end an authority shall fix the rentals or payments for dwellings in its projects at no higher rates than it shall find to be necessary in order to produce revenues which, together with all other available monies, revenues, income and receipts of the authority from whatever sources derived, including federal financial assistance necessary to maintain the low-rent character of the project, will be sufficient:

Rentals or payments for dwellings shall be established and the projects administered, insofar as possible, so as to assure that any federal financial assistance required shall be strictly limited to amounts and periods necessary to maintain the low-rent character of the projects. Nothing herein shall be construed to limit the amount an authority may charge for nondwelling facilities. All such income, together with other income and revenue, shall be used in the operation of the projects to aid in accomplishing the charitable and public purposes of this act.