Maine Revised Statutes Title 29-A. Motor Vehicles § 2113. Visible emissions

1. Prohibition. A person may not operate a gasoline-powered motor vehicle on a public way if the motor vehicle emits visible smoke, other than water vapor, in the exhaust emissions for a period in excess of 5 consecutive seconds.

1-A. Rolling coal prohibited. A person may not operate, or cause to have operated, a diesel-powered motor vehicle with a manufacturer's gross vehicle weight rating under 18,000 pounds that emits visible smoke on a public way or parking area because of a permanent or temporary alteration to the air pollution control system of the motor vehicle. For the purposes of this subsection, “air pollution control system” has the same meaning as in section 2111, subsection 1.

2. Violation; penalty. A violation of this section is a traffic infraction for which a forfeiture not to exceed $100 may be adjudged. A person against whom enforcement action has been taken for a violation of subsection 1 may not be adjudicated to have committed a subsequent violation of subsection 1 unless 24 hours have elapsed between the date and time of the first violation indicated on the Violation and Summons Complaint and the subsequent violation.