Young Woman Has Stopped at a Service Station for Engine Adjustment after Her Car Had Failed the Emissions Test at an Auto Emission Inspection Station in Downtown Cincinnati, Ohio. All Light Duty, Spark Ignition Powered Motor Vehicles Must Pass Carbon Monoxide and Hydrocarbon Emissions Tests Annually as Well as a Safety Check That Has Been in Effect Since 1940.
Photographer: Eiler, Lyntha Scott. Original public domain image from Flickr