This chapter applies to those counties having a population of:not less thannor more than12,500 12,50860,250 60,35073,900 74,000250,000 300,000according to the federal census of 1960 or any subsequent federal census and to any county of the state having a metropolitan form of government.Acts 1970, ch. 417, § 6; 1978, ch. 546, § 1; 1978, ch. 862, § 1; 1979, ch. 58, § 1; 1980, ch. 461, § 1; T.C.A., §§ 53-4506, 68-33-106.
Tennessee Legal Code