Virginia Vehicle Emissions Inspector
Practice Exam Questions With Correct
Answers
1. What is the primary environmental objective of Virginia's vehicle emissions
inspection program?
A) To improve overall vehicle fuel economy
B) To reduce harmful air pollutants from motor vehicles
C) To increase state revenue through inspection fees
D) To ensure vehicle safety compliance
Correct Answer: B
Rationale: The Virginia emissions inspection program is federally mandated under the
Clean Air Act to reduce ground-level ozone and smog by ensuring vehicles comply with
emissions standards. While safety inspections exist separately, the emissions program
specifically targets air quality improvement in Northern Virginia's non-attainment areas .
2. Which Virginia agency administers and oversees the vehicle emissions
inspection program?
A) Virginia Department of Transportation (VDOT)
B) Virginia Department of Environmental Quality (DEQ)
C) Virginia State Police
D) Virginia Department of Motor Vehicles (DMV)
Correct Answer: B
Rationale: The Virginia Department of Environmental Quality (DEQ) administers and
regulates the emissions inspection program, including standards, procedures, and
enforcement under the Air Check Virginia program .
3. How often must a 2010 gasoline-powered passenger car registered in Fairfax
County be emissions tested?
,A) Upon initial registration, then every 2 years
B) Every year at safety inspection time
C) Only when the check engine light is on
D) At 5 years old, then annually
Correct Answer: A
Rationale: For most gasoline vehicles 1996 and newer in affected areas, testing is
required biennially (every 2 years) at initial registration and then every other year .
4. Which of the following vehicles is EXEMPT from emissions inspection in
Virginia?
A) 2015 gasoline passenger car garaged in Fairfax County
B) 2020 diesel truck with GVWR of 8,200 pounds
C) Antique motor vehicle as defined in § 46.2-100
D) 2005 gasoline SUV garaged in Prince William County
Correct Answer: C
Rationale: Antique motor vehicles, as defined in § 46.2-100 and licensed under § 46.2-
730, are exempt from emissions inspections. Diesel vehicles with model year newer than
1996 and GVWR under 8,501 pounds are NOT exempt. Gasoline vehicles in affected
counties ARE subject to inspection .
5. What legislative act established the framework requiring enhanced vehicle
emissions inspection programs?
A) The Motor Vehicle Safety Act of 1966
B) The Clean Air Act Amendments of 1990
C) The Energy Policy Act of 1992
D) The National Environmental Policy Act of 1970
Correct Answer: B
Rationale: In 1990, Congress passed the Clean Air Act Amendments, which established
requirements for enhanced vehicle emissions inspection programs in areas that did not
meet federal air quality standards. This legislation mandated OBD-II standardization and
provided the framework for Virginia's Air Check program .
,6. According to Virginia law, which vehicles are subject to emissions inspection
requirements?
A) All vehicles registered in Virginia
B) Gasoline-powered vehicles principally garaged in specified Northern Virginia
jurisdictions
C) Only vehicles manufactured after 1996
D) All vehicles with a GVWR over 10,000 pounds
Correct Answer: B
Rationale: Emissions inspections are required for vehicles principally garaged in specific
Northern Virginia jurisdictions: Arlington, Fairfax, Loudoun, Prince William, and Stafford
counties, and the cities of Alexandria, Fairfax, Falls Church, Manassas, and Manassas
Park .
7. What is the minimum passing score required on the Virginia Emissions Inspector
qualification examination?
A) 70%
B) 75%
C) 80%
D) 85%
Correct Answer: C
Rationale: Applicants must pass the qualification test with a score of 80% or higher. This
demonstrates the required knowledge, skill, and competence concerning the conduct of
emissions inspections as specified in 9VAC5-91-390 .
8. How long is a Virginia Emissions Inspector license valid before requiring
renewal?
A) 1 year
B) 2 years
C) 3 years
D) 5 years
Correct Answer: B
, Rationale: Emissions inspectors in Virginia must recertify every two years to maintain
their license and stay current with program requirements. It is the inspector's responsibility
to visit the training portal and complete renewal requirements .
9. What are the three primary pollutants targeted by Virginia's emissions
inspection program?
A) CO₂, H₂O, and O₂
B) Carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx)
C) Particulate matter, sulfur dioxide, and lead
D) Ozone, methane, and carbon dioxide
Correct Answer: B
Rationale: Carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) are the
primary pollutants from vehicle exhaust targeted by emissions inspections. These
pollutants contribute to ground-level ozone formation and smog .
10. What environmental condition is formed when NOx combines with HC in the
presence of sunlight?
A) Acid rain
B) Ground-level ozone (smog)
C) Carbon monoxide
D) Particulate matter
Correct Answer: B
Rationale: When nitrogen oxides (NOx) combine with hydrocarbons (HC) and are
exposed to sunlight, ground-level ozone (smog) is created. This is a primary reason for the
emissions inspection program in Northern Virginia .
11. What is the maximum fee that may be charged for a Virginia emissions
inspection?
A) $15
B) $20
C) $25
D) $30
Practice Exam Questions With Correct
Answers
1. What is the primary environmental objective of Virginia's vehicle emissions
inspection program?
A) To improve overall vehicle fuel economy
B) To reduce harmful air pollutants from motor vehicles
C) To increase state revenue through inspection fees
D) To ensure vehicle safety compliance
Correct Answer: B
Rationale: The Virginia emissions inspection program is federally mandated under the
Clean Air Act to reduce ground-level ozone and smog by ensuring vehicles comply with
emissions standards. While safety inspections exist separately, the emissions program
specifically targets air quality improvement in Northern Virginia's non-attainment areas .
2. Which Virginia agency administers and oversees the vehicle emissions
inspection program?
A) Virginia Department of Transportation (VDOT)
B) Virginia Department of Environmental Quality (DEQ)
C) Virginia State Police
D) Virginia Department of Motor Vehicles (DMV)
Correct Answer: B
Rationale: The Virginia Department of Environmental Quality (DEQ) administers and
regulates the emissions inspection program, including standards, procedures, and
enforcement under the Air Check Virginia program .
3. How often must a 2010 gasoline-powered passenger car registered in Fairfax
County be emissions tested?
,A) Upon initial registration, then every 2 years
B) Every year at safety inspection time
C) Only when the check engine light is on
D) At 5 years old, then annually
Correct Answer: A
Rationale: For most gasoline vehicles 1996 and newer in affected areas, testing is
required biennially (every 2 years) at initial registration and then every other year .
4. Which of the following vehicles is EXEMPT from emissions inspection in
Virginia?
A) 2015 gasoline passenger car garaged in Fairfax County
B) 2020 diesel truck with GVWR of 8,200 pounds
C) Antique motor vehicle as defined in § 46.2-100
D) 2005 gasoline SUV garaged in Prince William County
Correct Answer: C
Rationale: Antique motor vehicles, as defined in § 46.2-100 and licensed under § 46.2-
730, are exempt from emissions inspections. Diesel vehicles with model year newer than
1996 and GVWR under 8,501 pounds are NOT exempt. Gasoline vehicles in affected
counties ARE subject to inspection .
5. What legislative act established the framework requiring enhanced vehicle
emissions inspection programs?
A) The Motor Vehicle Safety Act of 1966
B) The Clean Air Act Amendments of 1990
C) The Energy Policy Act of 1992
D) The National Environmental Policy Act of 1970
Correct Answer: B
Rationale: In 1990, Congress passed the Clean Air Act Amendments, which established
requirements for enhanced vehicle emissions inspection programs in areas that did not
meet federal air quality standards. This legislation mandated OBD-II standardization and
provided the framework for Virginia's Air Check program .
,6. According to Virginia law, which vehicles are subject to emissions inspection
requirements?
A) All vehicles registered in Virginia
B) Gasoline-powered vehicles principally garaged in specified Northern Virginia
jurisdictions
C) Only vehicles manufactured after 1996
D) All vehicles with a GVWR over 10,000 pounds
Correct Answer: B
Rationale: Emissions inspections are required for vehicles principally garaged in specific
Northern Virginia jurisdictions: Arlington, Fairfax, Loudoun, Prince William, and Stafford
counties, and the cities of Alexandria, Fairfax, Falls Church, Manassas, and Manassas
Park .
7. What is the minimum passing score required on the Virginia Emissions Inspector
qualification examination?
A) 70%
B) 75%
C) 80%
D) 85%
Correct Answer: C
Rationale: Applicants must pass the qualification test with a score of 80% or higher. This
demonstrates the required knowledge, skill, and competence concerning the conduct of
emissions inspections as specified in 9VAC5-91-390 .
8. How long is a Virginia Emissions Inspector license valid before requiring
renewal?
A) 1 year
B) 2 years
C) 3 years
D) 5 years
Correct Answer: B
, Rationale: Emissions inspectors in Virginia must recertify every two years to maintain
their license and stay current with program requirements. It is the inspector's responsibility
to visit the training portal and complete renewal requirements .
9. What are the three primary pollutants targeted by Virginia's emissions
inspection program?
A) CO₂, H₂O, and O₂
B) Carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx)
C) Particulate matter, sulfur dioxide, and lead
D) Ozone, methane, and carbon dioxide
Correct Answer: B
Rationale: Carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) are the
primary pollutants from vehicle exhaust targeted by emissions inspections. These
pollutants contribute to ground-level ozone formation and smog .
10. What environmental condition is formed when NOx combines with HC in the
presence of sunlight?
A) Acid rain
B) Ground-level ozone (smog)
C) Carbon monoxide
D) Particulate matter
Correct Answer: B
Rationale: When nitrogen oxides (NOx) combine with hydrocarbons (HC) and are
exposed to sunlight, ground-level ozone (smog) is created. This is a primary reason for the
emissions inspection program in Northern Virginia .
11. What is the maximum fee that may be charged for a Virginia emissions
inspection?
A) $15
B) $20
C) $25
D) $30
