Page 1 of 43
ENVIRONMENTAL COMPLIANCE TEST
2026|REAL 300 QS&AS|100% SCORE
RATE
Q1. The Clean Air Act requires a Title V operating permit for a
source with potential emissions above which threshold for a
criteria pollutant?
A) 10 tons/year
B) 100 tons/year
C) 250 tons/year
D) 1,000 tons/year
Answer: B
Rationale: Title V (Part 70) applies to major sources: ≥100 tpy for
any criteria pollutant, or ≥10 tpy for a HAP, or ≥25 tpy combined
HAPs.
,Page 2 of 43
Q2. What is the 8-hour National Ambient Air Quality Standard
(NAAQS) for ozone (2026 update)?
A) 0.050 ppm
B) 0.070 ppm
C) 0.075 ppm
D) 0.080 ppm
Answer: B
Rationale: EPA tightened ozone NAAQS to 0.070 ppm in 2015;
as of 2026, still 0.070 ppm (no further reduction yet).
Q3. Which of the following is NOT a criteria air pollutant
under the CAA?
A) Lead
B) Carbon monoxide
C) Carbon dioxide
D) Nitrogen dioxide
Answer: C
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Rationale: CO2 is a greenhouse gas, not a criteria pollutant
(criteria: O3, PM, CO, SO2, NO2, Pb).
Q4. Scenario: Your facility emits 15 tons per year of a single
HAP (e.g., benzene). You are considered:
A) De minimis
B) A major source for HAPs (≥10 tpy)
C) Minor source
D) Exempt
Answer: B
Rationale: Major source for HAPs threshold is 10 tpy for any single
HAP or 25 tpy combined.
Q5. The “Maximum Achievable Control Technology” (MACT)
standards apply to:
A) Mobile sources
B) Major sources of Hazardous Air Pollutants (HAPs)
C) All greenhouse gas emitters
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D) Small area sources
Answer: B
Rationale: MACT under Section 112 requires maximum degree of
reduction for HAPs.
Q6. Under the Greenhouse Gas Reporting Program (40 CFR
98), facilities emitting more than ______ metric tons CO2e per
year must report annually.
A) 10,000
B) 25,000
C) 50,000
D) 100,000
Answer: B
Rationale: 25,000 MT CO2e is the threshold for mandatory GHG
reporting.
Q7. Which of the following is a “Class I” ozone-depleting
substance (ODS) banned from production?
ENVIRONMENTAL COMPLIANCE TEST
2026|REAL 300 QS&AS|100% SCORE
RATE
Q1. The Clean Air Act requires a Title V operating permit for a
source with potential emissions above which threshold for a
criteria pollutant?
A) 10 tons/year
B) 100 tons/year
C) 250 tons/year
D) 1,000 tons/year
Answer: B
Rationale: Title V (Part 70) applies to major sources: ≥100 tpy for
any criteria pollutant, or ≥10 tpy for a HAP, or ≥25 tpy combined
HAPs.
,Page 2 of 43
Q2. What is the 8-hour National Ambient Air Quality Standard
(NAAQS) for ozone (2026 update)?
A) 0.050 ppm
B) 0.070 ppm
C) 0.075 ppm
D) 0.080 ppm
Answer: B
Rationale: EPA tightened ozone NAAQS to 0.070 ppm in 2015;
as of 2026, still 0.070 ppm (no further reduction yet).
Q3. Which of the following is NOT a criteria air pollutant
under the CAA?
A) Lead
B) Carbon monoxide
C) Carbon dioxide
D) Nitrogen dioxide
Answer: C
,Page 3 of 43
Rationale: CO2 is a greenhouse gas, not a criteria pollutant
(criteria: O3, PM, CO, SO2, NO2, Pb).
Q4. Scenario: Your facility emits 15 tons per year of a single
HAP (e.g., benzene). You are considered:
A) De minimis
B) A major source for HAPs (≥10 tpy)
C) Minor source
D) Exempt
Answer: B
Rationale: Major source for HAPs threshold is 10 tpy for any single
HAP or 25 tpy combined.
Q5. The “Maximum Achievable Control Technology” (MACT)
standards apply to:
A) Mobile sources
B) Major sources of Hazardous Air Pollutants (HAPs)
C) All greenhouse gas emitters
, Page 4 of 43
D) Small area sources
Answer: B
Rationale: MACT under Section 112 requires maximum degree of
reduction for HAPs.
Q6. Under the Greenhouse Gas Reporting Program (40 CFR
98), facilities emitting more than ______ metric tons CO2e per
year must report annually.
A) 10,000
B) 25,000
C) 50,000
D) 100,000
Answer: B
Rationale: 25,000 MT CO2e is the threshold for mandatory GHG
reporting.
Q7. Which of the following is a “Class I” ozone-depleting
substance (ODS) banned from production?
