Colorado Revised Statutes Title 25. Health § 25-8-402. Procedures to be followed in classifying state waters and setting standards and control regulations

(1) Prior to the classification of state waters and promulgating any water quality standard or any control regulation authorized in this article, the commission shall conduct a public hearing thereon as provided in section 24-4-103, C.R.S. Notice of any such hearing shall conform to the requirements of section 24-4-103, C.R.S., but such notice shall be given at least sixty days prior to the hearing and shall include each proposed standard or regulation.

(2) Any person desiring to propose a standard or regulation differing from the standard or regulation proposed by the commission shall file such other written proposal with the commission not less than twenty days prior to the hearing, and, when on file, such proposal shall be open for public inspection.

(3) Witnesses at the hearing shall be subject to cross-examination by or on behalf of the commission, by or on behalf of persons who have proposed standards or regulations pursuant to subsection (2) of this section, and by or on behalf of persons who have obtained party status to the proceeding.

(4) Standards or regulations promulgated pursuant to this section shall take effect as provided in section 24-4-103(5), C.R.S.

(5) Any emergency rule-making proceedings by the commission shall be conducted pursuant to section 24-4-103(6), C.R.S., and not pursuant to this section. Any rule adopted pursuant to such proceedings may be effective for a specified period longer than one hundred twenty days, but not later than one year, if the commission determines that such longer period is necessary to complete rule-making pursuant to section 24-4-103, C.R.S., to reconsider the emergency rule.