(2) All bonds heretofore issued under authority of ORS 450.250 to 450.300 and sold to the state, and the proceedings under which they were issued, are approved, validated, ratified, and confirmed, and the bonds are the valid and legally binding general obligations of the issuing district. [1955 c.577 §7; 1957 c.121 §1; 1959 c.574 §2; 1971 c.647 §91; 1981 c.94 §39; 1981 c.804 §101; 1991 c.459 §403; 1995 c.79 §224]