Mont. Code Ann. § 75-2-124
The department is not required to perform an analysis of greenhouse gas emissions beyond the state's borders under the provisions of Title 75, chapters 1, parts 1 and 2, from any source not subject to state enforcement pursuant to 42 U.S.C. 7543(a) for a new motor vehicle or a new motor vehicle engine and pursuant to 42 U.S.C. 7543(e)(1) for a new nonroad engine or nonroad vehicle.
History: En. Sec. 2, Ch. 505, L. 2025.