http://www.drivecleanpa.state.pa.us/info_sc.htm
Use this link to access the most current list of Emission Inspection Stations and Current Services in your region. The Drive Clean site also includes much more useful information about this program. The List of Emission Inspection Stations and Current Services is updated monthly.
The emissions inspection program was developed by the Departments of Transportation and Environmental Protection with input from the public and the various representatives of the auto industry.
Tailored to meet Pennsylvania’s specific air quality improvement needs, the program focuses on motorist convenience and choice.
If required for your vehicle, the emissions inspection is due once a year at the same time or before your annual safety inspection.