1. All provisions of the law to the contrary notwithstanding, all rules that prescribe environmental conditions or standards promulgated by the department of natural resources, a board or a commission, pursuant to authorities granted in this chapter and chapters 260, 278, 319, 444, 643, and 644, the hazardous waste management commission in chapter 260, the state soil and water districts commission in chapter 278, the Missouri mining commission in chapter 444, the safe drinking water commission in this chapter, the air conservation commission in chapter 643, and the clean water commission in chapter 644 shall cite the specific section of law or legal authority. The rule shall also be based on the regulatory impact report provided in this section.

2. The regulatory impact report required by this section shall include:

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(1) A report on the peer-reviewed scientific data used to commence the rulemaking process;

(2) A description of persons who will most likely be affected by the proposed rule, including persons that will bear the costs of the proposed rule and persons that will benefit from the proposed rule;

(3) A description of the environmental and economic costs and benefits of the proposed rule;

(4) The probable costs to the agency and to any other agency of the implementation and enforcement of the proposed rule and any anticipated effect on state revenue;

(5) A comparison of the probable costs and benefits of the proposed rule to the probable costs and benefits of inaction, which includes both economic and environmental costs and benefits;

(6) A determination of whether there are less costly or less intrusive methods for achieving the proposed rule;

(7) A description of any alternative method for achieving the purpose of the proposed rule that were seriously considered by the department and the reasons why they were rejected in favor of the proposed rule;

(8) An analysis of both short-term and long-term consequences of the proposed rule;

(9) An explanation of the risks to human health, public welfare, or the environment addressed by the proposed rule;

(10) The identification of the sources of scientific information used in evaluating the risk and a summary of such information;

(11) A description and impact statement of any uncertainties and assumptions made in conducting the analysis on the resulting risk estimate;

(12) A description of any significant countervailing risks that may be caused by the proposed rule; and

(13) The identification of at least one, if any, alternative regulatory approaches that will produce comparable human health, public welfare, or environmental outcomes.

3. The department, board, or commission shall develop the regulatory impact report required by this section using peer-reviewed and published data or when the peer-reviewed data is not reasonably available, a written explanation shall be filed at the time of the rule promulgation notice explaining why the peer-reviewed data was not available to support the regulation. If the peer-reviewed data is not available, the department must provide all scientific references and the types, amount, and sources of scientific information that was used to develop the rule at the time of the rule promulgation notice.

4. The department, board, or commission shall publish in at least one newspaper of general circulation, qualified pursuant to chapter 493, with an average circulation of twenty thousand or more and on the department, board, or commission website a notice of availability of any regulatory impact report conducted pursuant to this section and shall make such assessments and analyses available to the public by posting them on the department, board, or commission website. The department, board, or commission shall allow at least sixty days for the public to submit comments and shall post all comments and respond to all significant comments prior to promulgating the rule.

5. The department, board, or commission shall file a copy of the regulatory impact report with the joint committee on administrative rules concurrently with the filing of the proposed rule pursuant to section 536.024.

6. If the department, board, or commission fails to conduct the regulatory impact report as required for each proposed rule pursuant to this section, such rule shall be void unless the written explanation delineating why the peer-reviewed data was not available has been filed at the time of the rule promulgation notice.

7. Any other provision of this section to the contrary notwithstanding, the department, board, or commission referenced in subsection 1 of this section may adopt a rule without conducting a regulatory impact report if the director of the department determines that immediate action is necessary to protect human health, public welfare, or the environment; provided, however, in doing so, the department, board, or commission shall be required to provide written justification as to why it deviated from conducting a regulatory impact report and shall complete the regulatory impact report within one hundred eighty days of the adoption of the rule.

8. The provisions of this section shall not apply if the department adopts environmental protection agency rules and rules from other applicable federal agencies without variance.