NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 2026/2027 | Page 1 | Passing Score: 75%
NEW JERSEY DEPARTMENT OF EDUCATION
NJ LEAD SUPERVISOR TEST PREP
QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027
LEAD SUPERVISOR CERTIFICATION - Official Exam 2026/2027
100 75% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Lead Hazard Identification and Risk Assessment Q1-Q20
Section 2 Lead Abatement Methods and Procedures Q21-Q40
Section 3 New Jersey Lead Regulations and Compliance Q41-Q60
Section 4 Worker Safety and Personal Protective Equipment Q61-Q80
Section 5 Project Management and Documentation Q81-Q100
New Jersey Lead Supervisor certification preparation. Passing score: 75% (75 questions correct).
Instructions: Select the single best answer for each question. This exam is designed for
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 1
,SECTION 1 | LEAD
QUESTIONS & ANSWERS
HAZARD
SOLVED
IDENTIFICATION
ANSWERS!!AND
2026/2027
RISK ASSESSMENT
2026/2027 | Q1-Q20 | NJ LEAD SUPERVISOR TEST PREP
Q1 Question 1 of 100
A lead inspector examines a 1920s residential home in Newark after a family reports peeling paint.
The inspector uses an X-ray fluorescence (XRF) analyzer to test painted surfaces and obtains a
reading of 1.8 mg/cm2 on a living room windowsill. According to EPA and HUD guidelines, this result
indicates which finding?
A. A lead-based paint hazard because the XRF reading exceeds the federal action level of 1.0
mg/cm2
B. No lead hazard because the reading is below the HUD threshold of 2.0 mg/cm2 for abatement
C. A borderline result requiring laboratory confirmation before any regulatory determination
D. A lead hazard only if the paint is also deteriorated, since intact paint never qualifies as a hazard
Correct Answer: A
Rationale:
The EPA/HUD action level for lead-based paint is 1.0 mg/cm2 as measured by XRF; a reading of 1.8 mg/cm2
exceeds this threshold and is classified as lead-based paint. Option B incorrectly cites 2.0 mg/cm2. Option C
is wrong because 1.8 is clearly above 1.0. Option D is incorrect because the identification of lead-based paint
does not require deterioration.
Q2 Question 2 of 100
A public health nurse visits a 3-year-old child in Paterson whose blood lead level (BLL) is 10
micrograms per deciliter. The CDC currently uses a blood lead reference value of 3.5 micrograms per
deciliter to identify children with elevated exposure. This child's BLL of 10 micrograms per deciliter is
best described by which classification?
A. Within normal limits because the level is below the previous CDC action level of 20 micrograms per
deciliter
B. Significantly elevated above the current CDC reference value, requiring case management
and environmental investigation
C. Only a concern if the child also shows symptoms of acute lead encephalopathy such as seizures
D. Borderline elevated and only requiring monitoring with retesting in 12 months
Correct Answer: B
Rationale:
A BLL of 10 micrograms per deciliter is significantly above the current CDC reference value of 3.5 micrograms
per deciliter, warranting case management and environmental investigation. Option A uses outdated
thresholds. Option C incorrectly requires encephalopathy for action. Option D understates the required
response.
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 2
,Q3 Question 3 of 100
A lead risk assessor evaluates a pre-1978 apartment building in Trenton that is undergoing
renovation. The assessor finds intact lead-based paint on bedroom walls but deteriorating lead-based
paint on the kitchen ceiling and exterior window frames. According to HUD guidelines, which
condition constitutes a lead-based paint hazard requiring immediate response?
A. All lead-based paint regardless of condition must be treated as a hazard requiring abatement
B. Only the intact paint on bedroom walls because interior surfaces always take priority over exterior
ones
C. The deteriorating paint on the kitchen ceiling and exterior window frames because
deteriorated lead-based paint is a hazard
D. Neither condition is a hazard because the paint is only considered hazardous if found on floors
Correct Answer: C
Rationale:
Deteriorating lead-based paint is classified as a lead-based paint hazard requiring immediate response
regardless of substrate. Intact lead-based paint is not a hazard unless disturbed. Option A is incorrect
because intact LBP is not automatically a hazard. Option B reverses priority. Option D is incorrect because
hazards are not limited to floors.
Q4 Question 4 of 100
A certified lead inspector collects paint chip samples from a home built in 1950 for laboratory
analysis. The lab report indicates lead content of 0.8% by weight. Under federal regulations,
lead-based paint is defined as paint containing lead at or above which minimum concentration by
weight?
A. 0.5% by weight, which is the threshold established by the Consumer Product Safety Commission
B. 0.06% by weight, which is the limit for paint manufactured after 1978
C. 1.2% by weight, which was the previous HUD standard before the 1992 revision
D. 0.5% by weight (5,000 ppm), which is the federal regulatory definition for existing paint in
housing
Correct Answer: D
Rationale:
Federal regulations define lead-based paint as containing 0.5% or more lead by weight (5,000 ppm). At 0.8%,
this sample exceeds the threshold. Option B is the limit for new paint, not existing. Options A and D both cite
0.5%, but the context clarifies D as the complete regulatory definition.
Q5 Question 5 of 100
A lead supervisor conducts a visual assessment of a property in Jersey City after lead abatement
work has been completed. The supervisor must verify that the work area meets clearance standards
before reoccupation. Clearance dust wipe samples from a floor show 35 micrograms per square foot
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 3
, of lead. Does this result pass the EPA clearance standard?
A. Yes, because the EPA clearance standard for floors is 40 micrograms per square foot and 35
is below that level
B. No, because the clearance standard for floors is 10 micrograms per square foot and 35 exceeds it
C. Yes, because any result below 100 micrograms per square foot is acceptable on all surfaces
D. No, because the clearance standard for floors is 250 micrograms per square foot and 35 is
suspiciously low
Correct Answer: A
Rationale:
The EPA clearance standard for floors is 40 micrograms per square foot; a result of 35 passes this standard.
Option B cites the older HUD clearance level. Option C is incorrect because different surfaces have different
standards. Option D cites the window sill standard, not floors.
Q6 Question 6 of 100
An environmental consultant assesses soil around a 1940s home in Elizabeth where exterior lead
paint has been chipping for years. Soil samples from the drip line show lead concentrations of 800
ppm. According to EPA standards, the soil-lead hazard threshold for bare soil in areas where children
play is which value?
A. 400 ppm for all residential soil regardless of use or location on the property
B. 400 ppm for bare soil in play areas and 1,200 ppm for other bare residential soil
C. 5,000 ppm because soil is only considered hazardous at extremely high concentrations
D. 100 ppm because the threshold was recently lowered to match international standards
Correct Answer: B
Rationale:
EPA defines soil-lead hazards as 400 ppm in bare soil in children's play areas and 1,200 ppm for other bare
residential soil. At 800 ppm, this soil could be hazardous if children play there. Option A oversimplifies the
standard. Option C is far too high. Option D cites no actual EPA standard.
Q7 Question 7 of 100
A lead risk assessor performs a risk assessment on a rental property in Camden and identifies lead
dust on window troughs at 600 micrograms per square foot. Under current EPA standards, the
hazard level for lead dust on window troughs is which threshold?
A. 40 micrograms per square foot, which is the same standard applied to floors
B. 100 micrograms per square foot, which is the standard for window sills only
C. 100 micrograms per square foot for window sills and 400 micrograms per square foot for
window troughs
D. 800 micrograms per square foot because troughs are exterior surfaces with higher allowances
Correct Answer: C
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 4
NEW JERSEY DEPARTMENT OF EDUCATION
NJ LEAD SUPERVISOR TEST PREP
QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027
LEAD SUPERVISOR CERTIFICATION - Official Exam 2026/2027
100 75% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Lead Hazard Identification and Risk Assessment Q1-Q20
Section 2 Lead Abatement Methods and Procedures Q21-Q40
Section 3 New Jersey Lead Regulations and Compliance Q41-Q60
Section 4 Worker Safety and Personal Protective Equipment Q61-Q80
Section 5 Project Management and Documentation Q81-Q100
New Jersey Lead Supervisor certification preparation. Passing score: 75% (75 questions correct).
Instructions: Select the single best answer for each question. This exam is designed for
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 1
,SECTION 1 | LEAD
QUESTIONS & ANSWERS
HAZARD
SOLVED
IDENTIFICATION
ANSWERS!!AND
2026/2027
RISK ASSESSMENT
2026/2027 | Q1-Q20 | NJ LEAD SUPERVISOR TEST PREP
Q1 Question 1 of 100
A lead inspector examines a 1920s residential home in Newark after a family reports peeling paint.
The inspector uses an X-ray fluorescence (XRF) analyzer to test painted surfaces and obtains a
reading of 1.8 mg/cm2 on a living room windowsill. According to EPA and HUD guidelines, this result
indicates which finding?
A. A lead-based paint hazard because the XRF reading exceeds the federal action level of 1.0
mg/cm2
B. No lead hazard because the reading is below the HUD threshold of 2.0 mg/cm2 for abatement
C. A borderline result requiring laboratory confirmation before any regulatory determination
D. A lead hazard only if the paint is also deteriorated, since intact paint never qualifies as a hazard
Correct Answer: A
Rationale:
The EPA/HUD action level for lead-based paint is 1.0 mg/cm2 as measured by XRF; a reading of 1.8 mg/cm2
exceeds this threshold and is classified as lead-based paint. Option B incorrectly cites 2.0 mg/cm2. Option C
is wrong because 1.8 is clearly above 1.0. Option D is incorrect because the identification of lead-based paint
does not require deterioration.
Q2 Question 2 of 100
A public health nurse visits a 3-year-old child in Paterson whose blood lead level (BLL) is 10
micrograms per deciliter. The CDC currently uses a blood lead reference value of 3.5 micrograms per
deciliter to identify children with elevated exposure. This child's BLL of 10 micrograms per deciliter is
best described by which classification?
A. Within normal limits because the level is below the previous CDC action level of 20 micrograms per
deciliter
B. Significantly elevated above the current CDC reference value, requiring case management
and environmental investigation
C. Only a concern if the child also shows symptoms of acute lead encephalopathy such as seizures
D. Borderline elevated and only requiring monitoring with retesting in 12 months
Correct Answer: B
Rationale:
A BLL of 10 micrograms per deciliter is significantly above the current CDC reference value of 3.5 micrograms
per deciliter, warranting case management and environmental investigation. Option A uses outdated
thresholds. Option C incorrectly requires encephalopathy for action. Option D understates the required
response.
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 2
,Q3 Question 3 of 100
A lead risk assessor evaluates a pre-1978 apartment building in Trenton that is undergoing
renovation. The assessor finds intact lead-based paint on bedroom walls but deteriorating lead-based
paint on the kitchen ceiling and exterior window frames. According to HUD guidelines, which
condition constitutes a lead-based paint hazard requiring immediate response?
A. All lead-based paint regardless of condition must be treated as a hazard requiring abatement
B. Only the intact paint on bedroom walls because interior surfaces always take priority over exterior
ones
C. The deteriorating paint on the kitchen ceiling and exterior window frames because
deteriorated lead-based paint is a hazard
D. Neither condition is a hazard because the paint is only considered hazardous if found on floors
Correct Answer: C
Rationale:
Deteriorating lead-based paint is classified as a lead-based paint hazard requiring immediate response
regardless of substrate. Intact lead-based paint is not a hazard unless disturbed. Option A is incorrect
because intact LBP is not automatically a hazard. Option B reverses priority. Option D is incorrect because
hazards are not limited to floors.
Q4 Question 4 of 100
A certified lead inspector collects paint chip samples from a home built in 1950 for laboratory
analysis. The lab report indicates lead content of 0.8% by weight. Under federal regulations,
lead-based paint is defined as paint containing lead at or above which minimum concentration by
weight?
A. 0.5% by weight, which is the threshold established by the Consumer Product Safety Commission
B. 0.06% by weight, which is the limit for paint manufactured after 1978
C. 1.2% by weight, which was the previous HUD standard before the 1992 revision
D. 0.5% by weight (5,000 ppm), which is the federal regulatory definition for existing paint in
housing
Correct Answer: D
Rationale:
Federal regulations define lead-based paint as containing 0.5% or more lead by weight (5,000 ppm). At 0.8%,
this sample exceeds the threshold. Option B is the limit for new paint, not existing. Options A and D both cite
0.5%, but the context clarifies D as the complete regulatory definition.
Q5 Question 5 of 100
A lead supervisor conducts a visual assessment of a property in Jersey City after lead abatement
work has been completed. The supervisor must verify that the work area meets clearance standards
before reoccupation. Clearance dust wipe samples from a floor show 35 micrograms per square foot
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 3
, of lead. Does this result pass the EPA clearance standard?
A. Yes, because the EPA clearance standard for floors is 40 micrograms per square foot and 35
is below that level
B. No, because the clearance standard for floors is 10 micrograms per square foot and 35 exceeds it
C. Yes, because any result below 100 micrograms per square foot is acceptable on all surfaces
D. No, because the clearance standard for floors is 250 micrograms per square foot and 35 is
suspiciously low
Correct Answer: A
Rationale:
The EPA clearance standard for floors is 40 micrograms per square foot; a result of 35 passes this standard.
Option B cites the older HUD clearance level. Option C is incorrect because different surfaces have different
standards. Option D cites the window sill standard, not floors.
Q6 Question 6 of 100
An environmental consultant assesses soil around a 1940s home in Elizabeth where exterior lead
paint has been chipping for years. Soil samples from the drip line show lead concentrations of 800
ppm. According to EPA standards, the soil-lead hazard threshold for bare soil in areas where children
play is which value?
A. 400 ppm for all residential soil regardless of use or location on the property
B. 400 ppm for bare soil in play areas and 1,200 ppm for other bare residential soil
C. 5,000 ppm because soil is only considered hazardous at extremely high concentrations
D. 100 ppm because the threshold was recently lowered to match international standards
Correct Answer: B
Rationale:
EPA defines soil-lead hazards as 400 ppm in bare soil in children's play areas and 1,200 ppm for other bare
residential soil. At 800 ppm, this soil could be hazardous if children play there. Option A oversimplifies the
standard. Option C is far too high. Option D cites no actual EPA standard.
Q7 Question 7 of 100
A lead risk assessor performs a risk assessment on a rental property in Camden and identifies lead
dust on window troughs at 600 micrograms per square foot. Under current EPA standards, the
hazard level for lead dust on window troughs is which threshold?
A. 40 micrograms per square foot, which is the same standard applied to floors
B. 100 micrograms per square foot, which is the standard for window sills only
C. 100 micrograms per square foot for window sills and 400 micrograms per square foot for
window troughs
D. 800 micrograms per square foot because troughs are exterior surfaces with higher allowances
Correct Answer: C
NJ LEAD SUPERVISOR TEST PREP QUESTIONS & ANSWERS SOLVED ANSWERS!! 2026/2027 -- 2026/2027 | Passing Score: 75% | Page 4
