Source: L. 71: R&RE, p. 422, § 1. C.R.S. 1963: § 40-3-303. L. 77: Entire section amended, p. 961, § 14, effective July 1. L. 2002: Entire section amended, p. 1579, § 3, effective July 1. L. 2018: Entire section amended, (SB 18-119), ch. 299, p. 1821, § 1, effective August 8.