C.R.S. § 24-1-131
24-1-131. Rules, regulations, and orders adopted prior to article - continuation
24-1-131. Rules, regulations, and orders adopted prior to article - continuation. All rules, regulations, and orders of departments, institutions, boards, commissions, or other agencies lawfully adopted prior to July 1, 1968, shall continue to be effective until revised, amended, repealed, or nullified pursuant to law.