Pennsylvania Vehicle Inspection Requirements: Annual Safety, Emissions for Older Cars

Pennsylvania mandates annual safety inspections for all registered vehicles, plus emissions testing for vehicles >10 years old in certain counties.

Safety Inspection (All Vehicles, Every Year)

Must be done within the month shown on your registration sticker. Certified mechanic at licensed station checks:

• Brakes (pads, rotors, lines, parking brake)
• Lights (head, tail, brake, turn, hazard, plate)
• Tires (tread depth ≥2/32", condition, matching)
• Steering & suspension (play, leaks, damage)
• Windshield (cracks in driver's view), wipers, mirrors
• Horn, seat belts, defroster, fuel system, exhaust
• Body (rust holes, sharp edges, door latches)

Emissions Inspection (Vehicles >10 Model Years Old)

Required in 17 counties (including Allegheny, Bucks, Chester, Delaware, Montgomery, Philadelphia). Tests:

• OBD-II scan (1996+): Checks readiness monitors, trouble codes.
• Tailpipe (pre-1996): Idle/loaded mode CO/HC measurement.
• Gas cap pressure test.

Newer vehicles (<10 years) exempt. Diesel, electric, motorcycles, antiques (25+ yrs, limited use) have separate rules.

Failure & Repair

Failed? You get a 30-day repair window. Re-inspection at same station (often free). No pass = no registration renewal = illegal to drive.

Cost

Safety: ~$30–$50. Emissions: ~$30–$40. Varies by station. Combined often discounted.

Resources

PA DMV Inspection Page for station locator, county list, forms.