C.R.S. § 25-7-1002

(1) In addition to maintaining a program that complies with the requirements of the federal act for prevention and remediation of significant deterioration of visibility in class I federal areas, the commission, in consultation with the general assembly, the governor, and affected federal, state, and local governmental entities, shall maintain a state-retained authority program in conformance with section 25-7-105.1 for nonvisibility air quality related values, referred to in this part 10 as the “program”. (2) The commission shall develop a program under which, except for grant funds secured from other sources, the federal government undertakes the responsibility for the funding of air quality related value baseline data collection and the verification studies needed to substantiate an assertion of significant impairment, and the commission is encouraged to conduct the activities specified in this part 10 in coordination with interested state and local governmental entities and affected citizens and businesses.