Source: L. 64: R&RE, p. 552, § 1. C.R.S. 1963: § 123-11-13. L. 70: p. 335, § 9. L. 71:
p. 1151, § 9. L. 74: Entire section amended, p. 376, § 8, effective March 21. L. 75: Entire section amended, p. 211, § 30, effective July 16. L. 80: Entire section amended, p. 409, § 9, effective January 1, 1981. L. 92: Entire section repealed, p. 924, § 198, effective January 1, 1993.