EPA LEAD INSPECTOR CERTIFICATION
EXAM WITH 250 VERIFIED PRACTICE
QUESTIONS & ANSWERS (TSCA
SECTION CFR PART 745 –
2025/2026 ACADEMIC YEAR) NEWLY!!
1. Under TSCA Section 401, what is the federal definition of lead-based paint?
• A) Paint with 0.06% lead by weight
• B) Paint with 0.5% lead by weight or 1.0 mg/cm²
• C) Paint with 1.0% lead by weight or 5.0 mg/cm²
• D) Any paint applied before 1960
• Answer: B
2. What is the EPA action level for lead in bare soil in children's play areas?
• A) 200 ppm
• B) 400 ppm
• C) 1,200 ppm
• D) 5,000 ppm
• Answer: B
3. What is the OSHA Permissible Exposure Limit (PEL) for lead in air over an 8-
hour work shift?
• A) 10 µg/m³
• B) 30 µg/m³
• C) 50 µg/m³
• D) 100 µg/m³
• Answer: C
,4. How long does lead remain in human blood before it is cleared?
• A) 10 days
• B) 30 days
• C) 90 days
• D) 1 year
• Answer: B
5. Where is approximately 95% of an adult's lead burden stored?
• A) Blood
• B) Kidneys and liver
• C) Bones and teeth
• D) Brain tissue
• Answer: C
6. Which federal regulation specifically governs lead-based paint inspection,
risk assessment, and abatement activities?
• A) Clean Air Act Title IV
• B) TSCA Section 402 and 40 CFR Part 745
• C) RCRA Subtitle C
• D) CERCLA Section 104
• Answer: B
7. What is the EPA hazard standard for lead in dust on residential window sills?
• A) 10 µg/ft²
• B) 40 µg/ft²
• C) 100 µg/ft²
• D) 400 µg/ft²
• Answer: C
,8. An XRF instrument must be calibrated using a Standard Reference Material
(SRM). How often must this calibration check be performed during an
inspection?
• A) Once at the start of the day only
• B) At start, every 4 hours, and at the end of the job
• C) Only when the battery is replaced
• D) Once per housing unit
• Answer: B
9. Which of the following surfaces is an XRF analyzer NOT able to accurately
test?
• A) Flat interior wall
• B) Flat window sill
• C) Curved or uneven porch column
• D) Smooth wooden floor
• Answer: C
10. What is the CDC reference level for elevated blood lead in children?
• A) 1 µg/dL
• B) 3.5 µg/dL
• C) 5 µg/dL
• D) 10 µg/dL
• Answer: B (Note: CDC lowered this from 5 to 3.5 µg/dL in 2021 – this is the
current verified value for 2026.)
11. "Target housing" under EPA regulations includes all pre-1978 housing
EXCEPT:
• A) Single-family homes
• B) Multi-family apartments
, • C) Housing for the elderly with no children under 6
• D) Child-occupied facilities
• Answer: C
12. A "child-occupied facility" is defined as a building where children under age
6 are present for how many hours per week?
• A) 2 hours
• B) 6 hours
• C) 10 hours
• D) 15 hours
• Answer: D
13. Before transporting an XRF analyzer across state lines, what must an
inspector obtain?
• A) A hazardous waste manifest
• B) Reciprocity agreement from the receiving state
• C) A USDOT shipping permit
• D) An EPA radioactive materials license
• Answer: B
14. What is the EPA hazard standard for lead in dust on residential floors?
• A) 10 µg/ft²
• B) 25 µg/ft²
• C) 40 µg/ft²
• D) 100 µg/ft²
• Answer: A
15. During an inspection, how many dust samples are typically required in a
standard 3-bedroom home?
EXAM WITH 250 VERIFIED PRACTICE
QUESTIONS & ANSWERS (TSCA
SECTION CFR PART 745 –
2025/2026 ACADEMIC YEAR) NEWLY!!
1. Under TSCA Section 401, what is the federal definition of lead-based paint?
• A) Paint with 0.06% lead by weight
• B) Paint with 0.5% lead by weight or 1.0 mg/cm²
• C) Paint with 1.0% lead by weight or 5.0 mg/cm²
• D) Any paint applied before 1960
• Answer: B
2. What is the EPA action level for lead in bare soil in children's play areas?
• A) 200 ppm
• B) 400 ppm
• C) 1,200 ppm
• D) 5,000 ppm
• Answer: B
3. What is the OSHA Permissible Exposure Limit (PEL) for lead in air over an 8-
hour work shift?
• A) 10 µg/m³
• B) 30 µg/m³
• C) 50 µg/m³
• D) 100 µg/m³
• Answer: C
,4. How long does lead remain in human blood before it is cleared?
• A) 10 days
• B) 30 days
• C) 90 days
• D) 1 year
• Answer: B
5. Where is approximately 95% of an adult's lead burden stored?
• A) Blood
• B) Kidneys and liver
• C) Bones and teeth
• D) Brain tissue
• Answer: C
6. Which federal regulation specifically governs lead-based paint inspection,
risk assessment, and abatement activities?
• A) Clean Air Act Title IV
• B) TSCA Section 402 and 40 CFR Part 745
• C) RCRA Subtitle C
• D) CERCLA Section 104
• Answer: B
7. What is the EPA hazard standard for lead in dust on residential window sills?
• A) 10 µg/ft²
• B) 40 µg/ft²
• C) 100 µg/ft²
• D) 400 µg/ft²
• Answer: C
,8. An XRF instrument must be calibrated using a Standard Reference Material
(SRM). How often must this calibration check be performed during an
inspection?
• A) Once at the start of the day only
• B) At start, every 4 hours, and at the end of the job
• C) Only when the battery is replaced
• D) Once per housing unit
• Answer: B
9. Which of the following surfaces is an XRF analyzer NOT able to accurately
test?
• A) Flat interior wall
• B) Flat window sill
• C) Curved or uneven porch column
• D) Smooth wooden floor
• Answer: C
10. What is the CDC reference level for elevated blood lead in children?
• A) 1 µg/dL
• B) 3.5 µg/dL
• C) 5 µg/dL
• D) 10 µg/dL
• Answer: B (Note: CDC lowered this from 5 to 3.5 µg/dL in 2021 – this is the
current verified value for 2026.)
11. "Target housing" under EPA regulations includes all pre-1978 housing
EXCEPT:
• A) Single-family homes
• B) Multi-family apartments
, • C) Housing for the elderly with no children under 6
• D) Child-occupied facilities
• Answer: C
12. A "child-occupied facility" is defined as a building where children under age
6 are present for how many hours per week?
• A) 2 hours
• B) 6 hours
• C) 10 hours
• D) 15 hours
• Answer: D
13. Before transporting an XRF analyzer across state lines, what must an
inspector obtain?
• A) A hazardous waste manifest
• B) Reciprocity agreement from the receiving state
• C) A USDOT shipping permit
• D) An EPA radioactive materials license
• Answer: B
14. What is the EPA hazard standard for lead in dust on residential floors?
• A) 10 µg/ft²
• B) 25 µg/ft²
• C) 40 µg/ft²
• D) 100 µg/ft²
• Answer: A
15. During an inspection, how many dust samples are typically required in a
standard 3-bedroom home?
