EMISSIONS TESTING
IN PENNSYLVANIA
25 Pennsylvania counties require emissions testing in addition to safety inspection. Find certified emissions testing stations near you.
25
Counties Require Emissions
6,170
Emissions Stations
7,729
Total Stations in These Counties
Learn More
Emissions Testing Guide
Types of Emissions Tests
Pennsylvania uses several testing methods based on vehicle type and age
OBD Test
On-Board Diagnostics for 1996+ vehicles
Visual Test
Inspection of emissions equipment
Tailpipe Test
For older vehicles (pre-1996)
Dynamometer
ASM test on a rolling dynamometer
Find Emissions Testing Near You
Zoom in and click markers for station details and directions
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25 Counties Requiring Emissions Testing
Click a county to browse emissions-certified stations
Allegheny
672 emissions stations802 total
Montgomery
483 emissions stations590 total
Philadelphia
477 emissions stations563 total
Lancaster
411 emissions stations540 total
Bucks
397 emissions stations486 total
York
339 emissions stations414 total
Chester
330 emissions stations404 total
Berks
313 emissions stations393 total
Delaware
281 emissions stations340 total
Lehigh
262 emissions stations319 total
Westmoreland
251 emissions stations350 total
Luzerne
244 emissions stations316 total
Northampton
201 emissions stations242 total
Dauphin
174 emissions stations225 total
Erie
173 emissions stations226 total
Lackawanna
162 emissions stations206 total
Cumberland
150 emissions stations200 total
Washington
142 emissions stations174 total
Cambria
115 emissions stations144 total
Lebanon
115 emissions stations145 total
Blair
108 emissions stations156 total
Beaver
103 emissions stations141 total
Lycoming
101 emissions stations136 total
Centre
85 emissions stations110 total
Mercer
81 emissions stations107 total
Don't See Your County?
42 Pennsylvania counties do NOT require emissions testing. If you live in one of these counties, you only need the standard safety inspection.