PennDOT Vehicle Inspection and Emissions 2 — Questions and Answers
Question 1: How often must a passenger vehicle registered in Pennsylvania undergo a safety inspection?
- Every 6 months
- Every year (Correct answer)
- Every 2 years
- Only when ownership changes
Correct answer: Every year
Pennsylvania requires annual safety inspections for passenger vehicles.
Question 2: Which Pennsylvania counties require an emissions inspection in addition to a safety inspection?
- All 67 counties
- Only rural counties
- Specific southeastern and south-central counties (Correct answer)
- Only Allegheny County
Correct answer: Specific southeastern and south-central counties
Emissions testing is required in select southeastern and south-central Pennsylvania counties with air quality concerns.
Question 3: What does the OBD emissions test evaluate?
- Tire pressure and brake performance
- On-board diagnostic system data from the vehicle's computer (Correct answer)
- Exhaust pipe temperature
- Fuel cap seal integrity only
Correct answer: On-board diagnostic system data from the vehicle's computer
The OBD test reads the vehicle's onboard computer for stored fault codes and monitor readiness.
Question 4: A vehicle fails its OBD emissions test because two readiness monitors are 'not ready.' What should the owner do?
- Immediately replace the catalytic converter
- Drive the vehicle to complete the drive cycle so monitors set (Correct answer)
- Request an emissions waiver immediately
- Sell the vehicle as-is
Correct answer: Drive the vehicle to complete the drive cycle so monitors set
Completing the manufacturer's drive cycle allows the vehicle's monitors to run and set to 'ready' status.
Question 5: What is the maximum emissions repair cost that qualifies a vehicle for a cost waiver in Pennsylvania?
- $75
- $150
- $250 (Correct answer)
- $500
Correct answer: $250
Pennsylvania's emissions cost waiver requires documented repairs of at least $250 before a waiver is granted.
Question 6: Which of the following vehicles is typically EXEMPT from Pennsylvania emissions testing?
- A 2005 model year gasoline passenger car in Philadelphia County
- A diesel pickup truck under 9,001 lbs GVWR
- A vehicle model year 25 years old or older (Correct answer)
- A hybrid vehicle registered in Montgomery County
Correct answer: A vehicle model year 25 years old or older
Vehicles that are 25 model years old or older are exempt from Pennsylvania emissions testing.
Question 7: During a Pennsylvania safety inspection, which lighting component is checked?
- Only headlights
- Headlights, taillights, brake lights, and turn signals (Correct answer)
- Only brake lights and hazards
- Interior dome lights only
Correct answer: Headlights, taillights, brake lights, and turn signals
Inspectors check all exterior lighting including headlights, taillights, brake lights, and turn signals.
PennDOT Vehicle Inspection and Emissions 2
How often must a passenger vehicle registered in Pennsylvania undergo a safety inspection?