How does the inspector conduct the emissions inspection for a diesel-powered vehicle?
The inspector checks the condition of any emissions control devices, and makes sure that the vehicle is at normal operating temperature. The inspector then enters information about the vehicle into the smokemeter used to test the exhaust emissions. The information determines the test standards for that vehicle. The smokemeter measures the exhaust emissions on three snap accelerations, and prints the results. The operator or owner of the vehicle receives a copy of the results. If the vehicle passes the safety inspection and the emissions inspection, the inspector puts the correct sticker or stickers in the correct location on the vehicle. If the vehicle fails any part of the inspection, the operator or owner of the vehicle receives a rejection notice.