§ 21-1131
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/md/transportation/21-1131A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
§21–1131.
(a)Except as provided in subsection
(b)of this section, a person may not knowingly or intentionally cause a diesel–powered motor vehicle to discharge clearly visible smoke, soot, or other exhaust emissions onto another person or motor vehicle.
(b)This section does not apply to a person operating:
(1)A diesel–powered vehicle that discharges visible exhaust as the result of normal acceleration or towing;
(2)A commercial vehicle with a gross weight of 10,000 pounds or more; or
(3)A construction vehicle operating at a construction site.