Every corporation operating a railroad shall install and maintain on locomotives in its service spark arresters or other suitable devices capable of preventing the discharge of sparks or other material which could start a fire. Said spark arresters or other suitable devices shall be subject to the approval and inspection of the department.
Mass. Gen. Laws ch. 160, § 235
Spark arresters
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.