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CALIFORNIA AIR QUALITY SPECIALIST CERTIFICATION
EXAM ACTUAL QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR-JUST RELEASED
SUMMURIZED EXAM COVERAGE
The exam focuses on the Clean Air Act (CAA) including its major amendments and the distinct roles of
the EPA and CARB. You must know the six criteria pollutants (NAAQS) and their health
effects. California-specific laws like AB 32 (GHG targets), SB 32, SB 100, and SB 1020 (carbon neutrality
by 2045) are heavily tested. Atmospheric chemistry (photochemical smog, inversions) and plume
behavior are key. Permitting (PC, PO, Title V, RECLAIM) and enforcement (NOV, BARCT, AB 617) are
critical. Mobile and stationary source controls are essential. Finally, data analysis (AERMOD, emissions
inventories) and CEQA/Environmental Justice complete the coverage.
CALIFORNIA AIR QUALITY SPECIALIST CERTIFICATION EXAM
Question 1
An industrial facility is located near a designated disadvantaged community under AB 617. Which of the
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following is the most direct requirement imposed by the Community Air Protection Program?
A) Immediate relocation of the facility
B) Implementation of Best Available Retrofit Control Technology (BARCT)
C) Total exemption from local district permit fees
D) Voluntary emissions reporting only
Answer: B
Rationale: AB 617 requires air districts to implement BARCT on all industrial sources at facilities required
to be in the state’s greenhouse gas cap-and-trade program, aiming to reduce exposure in impacted
communities. Relocation is not required; BARCT is a mandatory retrofit standard.
Question 2
What is the primary federal law that provides the legal framework for regulating air pollutants to protect
public health and the environment in the United States?
A) Clean Water Act
B) National Environmental Policy Act
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C) Clean Air Act
D) Safe Drinking Water Act
Answer: C
Rationale: The Clean Air Act is the main federal legislation regulating air emissions from stationary and
mobile sources. It was enacted in 1970 and has been amended several times.
Question 3
A city is planning a new highway that will increase traffic volume by 25% in a designated ozone
nonattainment area. Under the Clean Air Act, what must the transportation plan demonstrate?
A) No net increase in greenhouse gases
B) Conformity with the State Implementation Plan (SIP) for ozone
C) A reduction in volatile organic compounds from all vehicles
D) Complete mitigation through electric vehicle incentives only
Answer: B
Rationale: Transportation conformity under the Clean Air Act requires that federally funded or approved
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transportation plans, programs, and projects not cause or contribute to new violations of NAAQS,
worsen existing violations, or delay attainment of a NAAQS. The plan must demonstrate conformity with
the SIP for the relevant criteria pollutants.
Question 4
PM2.5 refers to particulate matter with an aerodynamic diameter of:
A) Less than 10 microns
B) Less than 2.5 microns
C) Greater than 2.5 microns
D) Less than 1 micron
Answer: B
Rationale: PM2.5 are fine inhalable particles with diameters generally 2.5 micrometers and smaller.
They can penetrate deep into the lungs and even enter the bloodstream, causing serious health effects.
CALIFORNIA AIR QUALITY SPECIALIST CERTIFICATION
EXAM ACTUAL QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR-JUST RELEASED
SUMMURIZED EXAM COVERAGE
The exam focuses on the Clean Air Act (CAA) including its major amendments and the distinct roles of
the EPA and CARB. You must know the six criteria pollutants (NAAQS) and their health
effects. California-specific laws like AB 32 (GHG targets), SB 32, SB 100, and SB 1020 (carbon neutrality
by 2045) are heavily tested. Atmospheric chemistry (photochemical smog, inversions) and plume
behavior are key. Permitting (PC, PO, Title V, RECLAIM) and enforcement (NOV, BARCT, AB 617) are
critical. Mobile and stationary source controls are essential. Finally, data analysis (AERMOD, emissions
inventories) and CEQA/Environmental Justice complete the coverage.
CALIFORNIA AIR QUALITY SPECIALIST CERTIFICATION EXAM
Question 1
An industrial facility is located near a designated disadvantaged community under AB 617. Which of the
, Page 2 of 199
following is the most direct requirement imposed by the Community Air Protection Program?
A) Immediate relocation of the facility
B) Implementation of Best Available Retrofit Control Technology (BARCT)
C) Total exemption from local district permit fees
D) Voluntary emissions reporting only
Answer: B
Rationale: AB 617 requires air districts to implement BARCT on all industrial sources at facilities required
to be in the state’s greenhouse gas cap-and-trade program, aiming to reduce exposure in impacted
communities. Relocation is not required; BARCT is a mandatory retrofit standard.
Question 2
What is the primary federal law that provides the legal framework for regulating air pollutants to protect
public health and the environment in the United States?
A) Clean Water Act
B) National Environmental Policy Act
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C) Clean Air Act
D) Safe Drinking Water Act
Answer: C
Rationale: The Clean Air Act is the main federal legislation regulating air emissions from stationary and
mobile sources. It was enacted in 1970 and has been amended several times.
Question 3
A city is planning a new highway that will increase traffic volume by 25% in a designated ozone
nonattainment area. Under the Clean Air Act, what must the transportation plan demonstrate?
A) No net increase in greenhouse gases
B) Conformity with the State Implementation Plan (SIP) for ozone
C) A reduction in volatile organic compounds from all vehicles
D) Complete mitigation through electric vehicle incentives only
Answer: B
Rationale: Transportation conformity under the Clean Air Act requires that federally funded or approved
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transportation plans, programs, and projects not cause or contribute to new violations of NAAQS,
worsen existing violations, or delay attainment of a NAAQS. The plan must demonstrate conformity with
the SIP for the relevant criteria pollutants.
Question 4
PM2.5 refers to particulate matter with an aerodynamic diameter of:
A) Less than 10 microns
B) Less than 2.5 microns
C) Greater than 2.5 microns
D) Less than 1 micron
Answer: B
Rationale: PM2.5 are fine inhalable particles with diameters generally 2.5 micrometers and smaller.
They can penetrate deep into the lungs and even enter the bloodstream, causing serious health effects.
