Source: L. 64: R&RE, p. 767, § 1. C.R.S. 1963: § 138-1-27. L. 83: (1)(b) amended, p. 1513, § 5, effective January 1, 1984. L. 87: (1)(a), IP(2), and (2)(c) amended and (1)(b) and (3) repealed, pp. 1437, 1457, §§ 5, 31, effective June 22. L. 93: (1)(a) amended, p. 1319, § 1, effective June 6. L. 2008: (1)(a) amended, p. 954, § 6, effective January 1, 2009. L. 2019: (1)(a) amended, (SB 19-241), ch. 390, p. 3476, § 51, effective August 2.