All natural resources conservation districts heretofore organized are hereby recognized and declared to be natural resources conservation districts subject to the provisions of this chapter, notwithstanding any defect in the process of their organization. (Amended 1963, No. 79, § 1(b), eff. May 7, 1963; 1967, No. 303 (Adj. Sess.), § 15(b), eff. March 22, 1968.)