Every acquisition of, transfer to, and contract for the acquisition of, a farm labor center or part thereof by a housing authority from the federal government and the operation and disposal of such farm labor center by the housing authority heretofore completed, executed, made, or done, which acquisition, operation, or disposal of a farm labor center conforms to the requirements of this part is hereby validated, confirmed, ratified and declared legally effective, and all acts and proceedings heretofore taken by or on behalf of any housing authority for such acquisition, contract for the acquisition, or the operation or disposal of a farm labor center are hereby confirmed, validated and declared legally effective. This part shall be construed to supply such legislative authorization as might have been necessary to authorize such acquisition, contract for acquisition, operation, or disposal of a farm labor center by a housing authority.