Mont. Code Ann. § 50-60-124
Exemption from environmental review
50-60-124 . Exemption from environmental review. The department and local building departments are exempt from the provisions of Title 75, chapter 1, parts 1 and 2, for an analysis of greenhouse gases from a covered product or appliance, as defined by 42 U.S.C. 6292, for the adoption or enforcement of the state building code or county, city, and town building codes.