Pennsylvania
What is the counties where testing is required for Pennsylvania?
For Pennsylvania, counties where testing is required is Chester, Delaware, Bucks, Montgomery and Philadelphia Counties constitute the Philadelphia Region; Allegheny, Beaver, Washington and Westmoreland Counties constitute the Pittsburgh Region, verified against its source on 2026-08-19.
Currently, in accordance with § 177.51(d), Chester, Delaware, Bucks, Montgomery and Philadelphia Counties constitute the Philadelphia Region; Allegheny, Beaver, Washington and Westmoreland Counties constitute the Pittsburgh Region. Pending certification in accordance with § 177.51(d), Berks, Dauphin, Cumberland, Lancaster, Lebanon, Lehigh, Northampton and York Counties shall constitute the South Central Region; Blair, Cambria, Centre, Erie, Lackawanna, Luzerne, Lycoming and Mercer Counties shall constitute the Northern Region.
— pacodeandbulletin.gov, retrieved 2026-08-19
- State
- Pennsylvania our reading
- Counties where testing is required
- Chester, Delaware, Bucks, Montgomery and Philadelphia Counties constitute the Philadelphia Region; Allegheny, Beaver, Washington and Westmoreland Counties constitute the Pittsburgh Region verified
- Vehicles covered / exempt
- gasoline-powered motor vehicles with a model year of 1975 and newer with a GVWR of 9,000 pounds or less per pacodeandbulletin.gov
- How often
- emission inspected annually in coordination with a safety inspection per pacodeandbulletin.gov
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What pacodeandbulletin.gov says
Subject gasoline-powered motor vehicles with a model year of 1975 and newer with a GVWR of 9,000 pounds or less and registered in an I/M county or region are subject to an emission inspection. Current model year vehicles and vehicles driven less than 5,000 miles per year are exempt from this requirement.
— pacodeandbulletin.gov, retrieved 2026-08-19
What pacodeandbulletin.gov says
Subject vehicles shall be emission inspected annually in coordination with a safety inspection according to procedures established by the Bureau, subject to paragraphs (1)—(3).
— pacodeandbulletin.gov, retrieved 2026-08-19
Sources
- pacodeandbulletin.govhttps://www.pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/067/chapter177/s177.3.html
- pacodeandbulletin.govhttps://www.pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/067/chapter177/s177.51.html