C.R.S. § 8-20.5-205

(1) No municipality, city, home rule city, city and county, county, or other political subdivision of the state shall adopt or enforce any requirement more stringent than the provisions of this part 2. This section does not apply to requirements established pursuant to the uniform fire code or the national fire protection association codes, nor does it apply to requirements established pursuant to local zoning regulations. (2) The limitation in subsection (1) of this section shall not apply to any municipality, city, home rule city, city and county, county, or other political subdivision of the state which has received an exemption from the committee created in section 8-20.5-104 . The committee may grant a site-specific exemption when the applicant demonstrates that such an exemption would be cost beneficial and serve the health, safety, or economic interest of its citizens based on consideration of local hydrologic, geologic, or other conditions, including location of population concentrations or commercial areas.