Colo. Rev. Stat. § 25-9-101
To assure adequate operation of water and wastewater facilities, and to preserve the public peace, health, and safety, this article 9 and any rules authorized pursuant thereto are enacted to provide for the examination, classification, and certification of water and wastewater facility operators and to establish minimum standards therefor based upon their knowledge and experience, to provide procedures for certification, to encourage career and technical education for such operators, to provide a penalty for the wrongful use of the title "certified operator", to require each water and wastewater facility to be under the supervision of a certified operator, to provide for the classification of all water and wastewater facilities in the state, and to provide a penalty for the operation of a water or wastewater facility without supervision of a certified operator.
C.R.S. § 25-9-101