A person may not use, drive, or operate within any wildland an internal combustion engine that is not equipped with a modern, efficient, and adequate spark arrester to prevent the escape of sparks, coals, cinders, and other burning material from the exhaust of the engine.
Mont. Code Ann. § 76-13-125
Spark arresters required
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.