Page 1 of 24
Pennsylvania Emissions Inspector Certification Guide –
Latest Update 2025 | Study Flashcards Summary –
Quizlet-Based Review Material
Northern Region Inspector Restrictions ......ANSWER........Cannot
perform emissions inspections on vehicles requiring testing
beyond the visual anti-tampering and gas-cap test.
Requirements for Emissions Inspectors ......ANSWER........Be 18
years or older, have a valid driver's license, enroll/qualify with
PennDOT, complete the EIC (Emissions Inspection Certification)
course.
EIC Expiration ......ANSWER........Every 2 years; inspectors must
complete EIR (Emissions Inspection Renewal) training within 6
months of expiration to renew their certification.
Becoming a CRT (Certified Repair Technician)
......ANSWER........Complete the EIC course and provide proof of
current ASE A8, T1, or L1 certification or proof of advanced
automotive diagnosis and repair training.
Air Pollution Overview ......ANSWER........The goal is better air
quality and to reduce health risks caused by pollution.
Definition of Air Pollution ......ANSWER........Air pollution is the
contamination of the atmosphere by harmful substances like
gases, liquids, or solids that can harm human health, animals, and
plants.
,Page 2 of 24
Pollutant Sources ......ANSWER........Can be both natural and
human-made.
Health Impact of Air Pollution ......ANSWER........The cost to human
health is the primary reason to control vehicle emissions.
Health Effects of Increased Pollution ......ANSWER........Linked to
respiratory issues such as asthma, bronchitis, pneumonia, and
COPD.
EPA Estimate on Vehicle Emissions ......ANSWER........20% of U.S.
air pollution is produced by vehicles; in cities, this can be as high
as 90%.
Emissions Improvements ......ANSWER........Vehicles today produce
98% less tailpipe emissions than in the 1960s, but the chemicals
are still harmful.
Major Pollutants from Vehicles ......ANSWER........Hydrocarbons
(HC), Carbon Monoxide (CO), Nitrogen Oxides (NOx), Ozone
(O3), Oxygen (O2).
Hydrocarbons (HC) ......ANSWER........Cause: Unburned fuel; issues
like ignition misfires, rich fuel mixtures, mechanical deficiencies.
Carbon Monoxide (CO) ......ANSWER........Cause: Incomplete
burning of fuel when there is insufficient oxygen; prevents
oxygen from reaching cells, can cause injury or death.
Nitrogen Oxides (NOx) ......ANSWER........Cause: High
temperatures during combustion; contributes to smog and acid
rain.
, Page 3 of 24
Ozone (O3) ......ANSWER........Formed at ground level from a
chemical reaction between NOx and HC in the presence of
sunlight; can scar lung tissue.
Oxygen (O2) ......ANSWER........Too much or too little can cause
improper combustion.
The Five-Gas Theory ......ANSWER........HC, CO, O2, CO2, and
NOx behavior is consistent in gasoline engines.
Program History and Regulations ......ANSWER........Includes key
years from 1984 to 2004 detailing the evolution of emissions
programs.
Vehicle Emissions Inspection Criteria ......ANSWER........Subject
vehicles include model year 1975 and newer with a GVWR of
9,000 pounds or less.
Non-Subject Vehicles ......ANSWER........Buses (16+ seating
capacity), vehicles with a GVWR over 9,000 pounds, and 1974
and older vehicles.
Leased Vehicles ......ANSWER........Inspected based on the county
listed on the registration card.
Emissions Inspection Required/Diesel Vehicles Exempt
......ANSWER........Means the vehicle must undergo emissions
testing.
Pennsylvania Emissions Inspector Certification Guide –
Latest Update 2025 | Study Flashcards Summary –
Quizlet-Based Review Material
Northern Region Inspector Restrictions ......ANSWER........Cannot
perform emissions inspections on vehicles requiring testing
beyond the visual anti-tampering and gas-cap test.
Requirements for Emissions Inspectors ......ANSWER........Be 18
years or older, have a valid driver's license, enroll/qualify with
PennDOT, complete the EIC (Emissions Inspection Certification)
course.
EIC Expiration ......ANSWER........Every 2 years; inspectors must
complete EIR (Emissions Inspection Renewal) training within 6
months of expiration to renew their certification.
Becoming a CRT (Certified Repair Technician)
......ANSWER........Complete the EIC course and provide proof of
current ASE A8, T1, or L1 certification or proof of advanced
automotive diagnosis and repair training.
Air Pollution Overview ......ANSWER........The goal is better air
quality and to reduce health risks caused by pollution.
Definition of Air Pollution ......ANSWER........Air pollution is the
contamination of the atmosphere by harmful substances like
gases, liquids, or solids that can harm human health, animals, and
plants.
,Page 2 of 24
Pollutant Sources ......ANSWER........Can be both natural and
human-made.
Health Impact of Air Pollution ......ANSWER........The cost to human
health is the primary reason to control vehicle emissions.
Health Effects of Increased Pollution ......ANSWER........Linked to
respiratory issues such as asthma, bronchitis, pneumonia, and
COPD.
EPA Estimate on Vehicle Emissions ......ANSWER........20% of U.S.
air pollution is produced by vehicles; in cities, this can be as high
as 90%.
Emissions Improvements ......ANSWER........Vehicles today produce
98% less tailpipe emissions than in the 1960s, but the chemicals
are still harmful.
Major Pollutants from Vehicles ......ANSWER........Hydrocarbons
(HC), Carbon Monoxide (CO), Nitrogen Oxides (NOx), Ozone
(O3), Oxygen (O2).
Hydrocarbons (HC) ......ANSWER........Cause: Unburned fuel; issues
like ignition misfires, rich fuel mixtures, mechanical deficiencies.
Carbon Monoxide (CO) ......ANSWER........Cause: Incomplete
burning of fuel when there is insufficient oxygen; prevents
oxygen from reaching cells, can cause injury or death.
Nitrogen Oxides (NOx) ......ANSWER........Cause: High
temperatures during combustion; contributes to smog and acid
rain.
, Page 3 of 24
Ozone (O3) ......ANSWER........Formed at ground level from a
chemical reaction between NOx and HC in the presence of
sunlight; can scar lung tissue.
Oxygen (O2) ......ANSWER........Too much or too little can cause
improper combustion.
The Five-Gas Theory ......ANSWER........HC, CO, O2, CO2, and
NOx behavior is consistent in gasoline engines.
Program History and Regulations ......ANSWER........Includes key
years from 1984 to 2004 detailing the evolution of emissions
programs.
Vehicle Emissions Inspection Criteria ......ANSWER........Subject
vehicles include model year 1975 and newer with a GVWR of
9,000 pounds or less.
Non-Subject Vehicles ......ANSWER........Buses (16+ seating
capacity), vehicles with a GVWR over 9,000 pounds, and 1974
and older vehicles.
Leased Vehicles ......ANSWER........Inspected based on the county
listed on the registration card.
Emissions Inspection Required/Diesel Vehicles Exempt
......ANSWER........Means the vehicle must undergo emissions
testing.
