C.R.S. § 25-7-413

(II) The goals established pursuant to subparagraph (I) of this paragraph (c) may be less than the maximum levels if the commission determines that such nonuse or conversions are not necessary to attain and maintain federal particulate matter standards.

(II) Prior to the development of the contingency plan, the commission shall contract with an independent contractor to conduct a random survey of the program area to determine public preferences for various wood smoke reduction strategies and shall hold a public hearing before adopting any recommendations concerning wood smoke reduction strategies, which recommendations shall be submitted to the general assembly for action.

(III) Strategies surveyed for public preference and considered by the commission for inclusion in the contingency plan shall include, but need not be limited to, the following:

(A) Charging a fee for residents of dwellings who wish to burn wood in a conventional stove or fireplace and using the fee for conversion incentives, enforcement of rules against burning wood without having paid a fee, and monitoring for compliance with rules;

(B) Conversion to clean burning devices upon the sale of a dwelling unit containing a conventional fireplace or non-Phase III wood stove;