1
NJ LEAD SUPERVISOR TEST PREP QUESTIONS
& ANSWERS — SOLVED ANSWERS!! 2026/2027
Edition
Exam Overview: This comprehensive test prep contains exactly 75 questions mirroring the
official NJ Department of Health Lead Abatement Supervisor certification examination.
Questions cover NJAC regulations (5:17, 8:51, 8:62, 7:26), OSHA standards (29 CFR 1910.134,
1926.62), HUD/EPA guidelines, and site safety protocols.
Question 1 (Multiple Choice)
Under NJAC 5:17, what is the lead dust level on floors that indicates a lead hazard requiring
abatement?
A) 5 µg/ft²
B) 10 µg/ft²
C) 25 µg/ft²
D) 40 µg/ft²
Answer: B) 10 µg/ft² [CORRECT]
Rationale: NJAC 5:17-3.5(b)1 states that floor dust levels equal to or greater than 10 µg/ft²
indicate lead hazards. This was amended in 2021, lowering the previous threshold from 40
µg/ft² to 10 µg/ft² to align with more protective federal standards.
Question 2 (True/False)
Under NJAC 5:17, a business firm may be certified to offer both lead evaluation and lead
abatement services at the same job site, provided they also perform the clearance testing.
A) True
B) False
Answer: B) False [CORRECT]
, 2
Rationale: NJAC 5:17-2.2(b) prohibits any relationship between individuals or firms
performing lead abatement services and those performing clearance testing at the same job
site, other than the clearance testing itself. This conflict-of-interest provision ensures
independent verification of abatement effectiveness.
Question 3 (Select-All-That-Apply)
Which of the following are required elements of a lead abatement sketch plan under NJAC
5:17-4.1(b)? (Select all that apply)
A) Work areas labeled to show all surfaces to be abated
B) Location of the nearest hospital
C) Workers' changing, handwashing, and eating areas
D) Emergency egress routes for occupants
E) The contractor's insurance policy number
Answer: A, C, D [CORRECT]
Rationale: NJAC 5:17-4.1(b) requires the sketch plan to show: (1) work areas with labeled
surfaces to be abated; (2) barriers separating work from occupied areas; (3) occupied areas
with bathroom access and emergency egress routes; (4) workers' changing, handwashing,
shower, toileting, and eating areas; (5) waste disposal route; (6) waste storage area; (7)
special equipment location; and (8) any other safety information. Insurance policy numbers
and hospital locations are not required sketch plan elements.
Sub-Topic: NJAC 8:51 — Childhood Lead Poisoning (3 Questions)
Question 4 (Multiple Choice)
Under NJAC 8:51, what is the current NJ actionable blood lead level that triggers case
management for children?
A) 3.5 µg/dL
B) 5.0 µg/dL
C) 10.0 µg/dL
D) 15.0 µg/dL
, 3
Answer: B) 5.0 µg/dL [CORRECT]
Rationale: NJAC 8:51 was amended to lower the elevated blood lead level threshold from 10
µg/dL to 5 µg/dL, consistent with CDC recommendations. N.J.A.C. 8:51-2.4(a) requires case
management whenever a child has a blood lead level of 5 µg/dL or greater.
Question 5 (Multiple Choice)
A 4-year-old child has a confirmed venous blood lead level of 8 µg/dL. Under NJAC 8:51,
within what timeframe must the local board of health conduct the initial home visit?
A) Within 24 hours
B) Within one week
C) Within three weeks
D) Within four weeks
Answer: C) Within three weeks [CORRECT]
Rationale: NJAC 8:51-2.5(a) establishes the home visit schedule: 5–14 µg/dL venous samples
require an initial home visit within three weeks; 15–19 µg/dL within two weeks; 20–44 µg/dL
within one week; 45–69 µg/dL within 48 hours; and ≥70 µg/dL within 24 hours.
Question 6 (True/False)
Under NJAC 8:51, a capillary blood lead screening result of 6 µg/dL requires confirmation by a
venous sample before any environmental intervention can occur.
A) True
B) False
Answer: A) True [CORRECT]
Rationale: NJAC 8:51-2.3(a) states that a capillary blood screening sample producing a blood
lead level of 5 µg/dL or greater shall be confirmed by a venous blood lead sample before an
environmental intervention or preliminary environmental evaluation is performed. A venous
sample of 5 µg/dL or greater does not require confirmatory testing.
Sub-Topic: NJAC 8:62 — Certification and Training Standards (2 Questions)
, 4
Question 7 (Multiple Choice)
How long is a lead abatement contractor certification valid under NJAC 5:17 before renewal is
required?
A) One year
B) Two years
C) Three years
D) Five years
Answer: B) Two years [CORRECT]
Rationale: NJAC 5:17-2.4(b) states that certification remains valid for a two-year period.
Applications for renewal may be made during the 90-day period before expiration or the 90-
day period after expiration. If expired more than 90 days, the firm must obtain a new
certification.
Question 8 (True/False)
Under NJAC 5:17-2.4(b)1, if a certified lead abatement supervisor leaves a firm, the contractor
certification automatically expires unless a replacement certified supervisor is designated
within 30 days.
A) True
B) False
Answer: B) False [CORRECT]
Rationale: NJAC 5:17-2.4(b)1 requires the Department to be notified in writing when a
certified supervisor ceases association with the firm. The certification expires unless another
certified person is substituted and the Department is notified in writing within 10 days (not 30
days) of the change.
Sub-Topic: NJAC 7:26 — Hazardous Waste (2 Questions)
Question 9 (Multiple Choice)
What is the regulatory concept that makes a lead abatement contractor responsible for
hazardous waste from its creation through final disposal?
NJ LEAD SUPERVISOR TEST PREP QUESTIONS
& ANSWERS — SOLVED ANSWERS!! 2026/2027
Edition
Exam Overview: This comprehensive test prep contains exactly 75 questions mirroring the
official NJ Department of Health Lead Abatement Supervisor certification examination.
Questions cover NJAC regulations (5:17, 8:51, 8:62, 7:26), OSHA standards (29 CFR 1910.134,
1926.62), HUD/EPA guidelines, and site safety protocols.
Question 1 (Multiple Choice)
Under NJAC 5:17, what is the lead dust level on floors that indicates a lead hazard requiring
abatement?
A) 5 µg/ft²
B) 10 µg/ft²
C) 25 µg/ft²
D) 40 µg/ft²
Answer: B) 10 µg/ft² [CORRECT]
Rationale: NJAC 5:17-3.5(b)1 states that floor dust levels equal to or greater than 10 µg/ft²
indicate lead hazards. This was amended in 2021, lowering the previous threshold from 40
µg/ft² to 10 µg/ft² to align with more protective federal standards.
Question 2 (True/False)
Under NJAC 5:17, a business firm may be certified to offer both lead evaluation and lead
abatement services at the same job site, provided they also perform the clearance testing.
A) True
B) False
Answer: B) False [CORRECT]
, 2
Rationale: NJAC 5:17-2.2(b) prohibits any relationship between individuals or firms
performing lead abatement services and those performing clearance testing at the same job
site, other than the clearance testing itself. This conflict-of-interest provision ensures
independent verification of abatement effectiveness.
Question 3 (Select-All-That-Apply)
Which of the following are required elements of a lead abatement sketch plan under NJAC
5:17-4.1(b)? (Select all that apply)
A) Work areas labeled to show all surfaces to be abated
B) Location of the nearest hospital
C) Workers' changing, handwashing, and eating areas
D) Emergency egress routes for occupants
E) The contractor's insurance policy number
Answer: A, C, D [CORRECT]
Rationale: NJAC 5:17-4.1(b) requires the sketch plan to show: (1) work areas with labeled
surfaces to be abated; (2) barriers separating work from occupied areas; (3) occupied areas
with bathroom access and emergency egress routes; (4) workers' changing, handwashing,
shower, toileting, and eating areas; (5) waste disposal route; (6) waste storage area; (7)
special equipment location; and (8) any other safety information. Insurance policy numbers
and hospital locations are not required sketch plan elements.
Sub-Topic: NJAC 8:51 — Childhood Lead Poisoning (3 Questions)
Question 4 (Multiple Choice)
Under NJAC 8:51, what is the current NJ actionable blood lead level that triggers case
management for children?
A) 3.5 µg/dL
B) 5.0 µg/dL
C) 10.0 µg/dL
D) 15.0 µg/dL
, 3
Answer: B) 5.0 µg/dL [CORRECT]
Rationale: NJAC 8:51 was amended to lower the elevated blood lead level threshold from 10
µg/dL to 5 µg/dL, consistent with CDC recommendations. N.J.A.C. 8:51-2.4(a) requires case
management whenever a child has a blood lead level of 5 µg/dL or greater.
Question 5 (Multiple Choice)
A 4-year-old child has a confirmed venous blood lead level of 8 µg/dL. Under NJAC 8:51,
within what timeframe must the local board of health conduct the initial home visit?
A) Within 24 hours
B) Within one week
C) Within three weeks
D) Within four weeks
Answer: C) Within three weeks [CORRECT]
Rationale: NJAC 8:51-2.5(a) establishes the home visit schedule: 5–14 µg/dL venous samples
require an initial home visit within three weeks; 15–19 µg/dL within two weeks; 20–44 µg/dL
within one week; 45–69 µg/dL within 48 hours; and ≥70 µg/dL within 24 hours.
Question 6 (True/False)
Under NJAC 8:51, a capillary blood lead screening result of 6 µg/dL requires confirmation by a
venous sample before any environmental intervention can occur.
A) True
B) False
Answer: A) True [CORRECT]
Rationale: NJAC 8:51-2.3(a) states that a capillary blood screening sample producing a blood
lead level of 5 µg/dL or greater shall be confirmed by a venous blood lead sample before an
environmental intervention or preliminary environmental evaluation is performed. A venous
sample of 5 µg/dL or greater does not require confirmatory testing.
Sub-Topic: NJAC 8:62 — Certification and Training Standards (2 Questions)
, 4
Question 7 (Multiple Choice)
How long is a lead abatement contractor certification valid under NJAC 5:17 before renewal is
required?
A) One year
B) Two years
C) Three years
D) Five years
Answer: B) Two years [CORRECT]
Rationale: NJAC 5:17-2.4(b) states that certification remains valid for a two-year period.
Applications for renewal may be made during the 90-day period before expiration or the 90-
day period after expiration. If expired more than 90 days, the firm must obtain a new
certification.
Question 8 (True/False)
Under NJAC 5:17-2.4(b)1, if a certified lead abatement supervisor leaves a firm, the contractor
certification automatically expires unless a replacement certified supervisor is designated
within 30 days.
A) True
B) False
Answer: B) False [CORRECT]
Rationale: NJAC 5:17-2.4(b)1 requires the Department to be notified in writing when a
certified supervisor ceases association with the firm. The certification expires unless another
certified person is substituted and the Department is notified in writing within 10 days (not 30
days) of the change.
Sub-Topic: NJAC 7:26 — Hazardous Waste (2 Questions)
Question 9 (Multiple Choice)
What is the regulatory concept that makes a lead abatement contractor responsible for
hazardous waste from its creation through final disposal?
