No person shall cause or permit the emission of a visible air contaminant from the internal combustion engine of:
(a) A motor vehicle while the vehicle is stationary for longer than ten consecutive seconds; or
(b) A motor vehicle after the vehicle has moved continuously for more than ninety yards.
(c) The operator or registered owner of a vehicle in violation of this section shall be responsible for such violation.
(Am. L.L. 2015/038, 5/6/2015, eff. 5/6/2016)