EMISSIONS INSPECTOR CERTIFICATION
EXAM |2025-2026 |LATEST EXAM
Inspectors are required to keep all information up to date on the emissions
training portal.
Written exam made up of 50 questions. A grade of 80% or higher is required to
pass.
Take a 1-hour final exam.
To enroll you must be at least 18 years of age and have a valid drivers license.
EIC expires every 2 years. It is the emission inspectors' responsibility to visit the
training portal.
HCs are the unburned fuel of any class of organic compound composed of carbon
and hydrogen.
NOx are formed in vehicle engines during the combustion of fuel at high
temperatures. When NOx is combined with HC and exposed to SUNLIGHT, smog is
created.
Ozone (O3) is not emitted directly into the air, but rather is created at ground
level by a chemical reaction between NOx and HC in the presence of SUNLIGHT.
, You need a lean indicator to determine the mixture accurately and to make a
diagnosis, with or without a converter. O2 is our best lean indicator, because the
levels change during lean mixtures.
CO2 is a desirable component of exhaust. A higher CO2 percentage indicates
combustion efficiency. The more efficient the burn is, the more efficient the
vehicle is running.
NOx is the result of combining nitrogen (N) and O2 atoms.
NOx production usually ranges between 1,700 to 2,500 part per million (ppm).
Automobiles produce the most NOx pollution.
First emission control device - 1960
In 1990, congress set the requirements for an enhanced program in the CLEAN
AIR ACT AMENDMENT.
Clean air is our goal.
Always look at the sticker or plate located on the vehicle to determine the GVWR.
Do not rely on the GVWR stated on the vehicle registration.
EXAM |2025-2026 |LATEST EXAM
Inspectors are required to keep all information up to date on the emissions
training portal.
Written exam made up of 50 questions. A grade of 80% or higher is required to
pass.
Take a 1-hour final exam.
To enroll you must be at least 18 years of age and have a valid drivers license.
EIC expires every 2 years. It is the emission inspectors' responsibility to visit the
training portal.
HCs are the unburned fuel of any class of organic compound composed of carbon
and hydrogen.
NOx are formed in vehicle engines during the combustion of fuel at high
temperatures. When NOx is combined with HC and exposed to SUNLIGHT, smog is
created.
Ozone (O3) is not emitted directly into the air, but rather is created at ground
level by a chemical reaction between NOx and HC in the presence of SUNLIGHT.
, You need a lean indicator to determine the mixture accurately and to make a
diagnosis, with or without a converter. O2 is our best lean indicator, because the
levels change during lean mixtures.
CO2 is a desirable component of exhaust. A higher CO2 percentage indicates
combustion efficiency. The more efficient the burn is, the more efficient the
vehicle is running.
NOx is the result of combining nitrogen (N) and O2 atoms.
NOx production usually ranges between 1,700 to 2,500 part per million (ppm).
Automobiles produce the most NOx pollution.
First emission control device - 1960
In 1990, congress set the requirements for an enhanced program in the CLEAN
AIR ACT AMENDMENT.
Clean air is our goal.
Always look at the sticker or plate located on the vehicle to determine the GVWR.
Do not rely on the GVWR stated on the vehicle registration.
