NJ Lead Supervisor Certification
Examination Prep — 2026/2027
100 Exam-Style Questions with Detailed Rationales
New Jersey Department of Health (NJDOH) / Department of Community Affairs (DCA)
Lead Certification Examination
100 Questions | Comprehensive Coverage | NJDOH/DCA/EPA-Aligned Format
Preparation Material — 2026/2027 Edition
, Domain 1: New Jersey Lead Regulations & Statutes
1. Under N.J.A.C. 8:63, which entity is primarily responsible for administering and enforcing
lead-based paint hazard control standards in New Jersey?
A. New Jersey Department of Health (NJDOH)
B. New Jersey Department of Environmental Protection (NJDEP)
C. New Jersey Department of Community Affairs (DCA)
D. New Jersey Department of Labor (NJDOL)
Correct Answer: A. New Jersey Department of Health (NJDOH)
Rationale: N.J.A.C. 8:63 designates the New Jersey Department of Health (NJDOH) as the
primary authority for lead-based paint hazard evaluation and control. While DCA shares some
abatement oversight through the Bureau of Housing Inspection, NJDOH holds primary regulatory
authority for lead hazard standards and certification.
2. According to N.J.A.C. 8:63-1.3, what is the definition of a 'lead-based paint hazard'?
A. Any paint containing lead at any concentration on any surface
B. Any condition that causes exposure to lead from lead-contaminated dust, lead-
contaminated soil, or deteriorated lead-based paint
C. Paint that has a lead concentration of 1.0 mg/cm² or greater as determined by XRF analysis
D. Any painted surface in a building constructed before 1960
Correct Answer: B. Any condition that causes exposure to lead from lead-
contaminated dust, lead-contaminated soil, or deteriorated lead-based paint
Rationale: N.J.A.C. 8:63-1.3 defines a lead-based paint hazard broadly as any condition that
causes exposure to lead from lead-contaminated dust, soil, or deteriorated lead-based paint. This
definition is consistent with the federal EPA/HUD definition and encompasses deteriorated paint,
dust, and soil hazards, not just the paint itself.
3. Under N.J.A.C. 5:17 (the Hotel and Multiple Dwelling Law), which types of properties are
subject to mandatory lead-based paint inspections?
A. Single-family owner-occupied homes
B. Residential buildings containing three or more dwelling units, including hotels and
rooming houses
C. Commercial office buildings and retail spaces
D. Industrial facilities and warehouses
Correct Answer: B. Residential buildings containing three or more dwelling units,
including hotels and rooming houses
Rationale: N.J.A.C. 5:17, which implements the Hotel and Multiple Dwelling Law, requires periodic
lead-based paint inspections for residential buildings with three or more dwelling units, including
2
, hotels and rooming houses. Single-family owner-occupied homes are generally exempt, and
commercial/industrial properties are outside the scope.
4. New Jersey's Lead Safe Housing Act (P.L. 2021, c. 131) requires landlords to register and
certify rental properties. What is the registration deadline for properties built before 1978?
A. All properties were required to register by July 22, 2022
B. Registration is required within 90 days of a tenant's occupancy
C. Registration is required only upon turnover of a rental unit
D. Registration is voluntary and not mandated by statute
Correct Answer: A. All properties were required to register by July 22, 2022
Rationale: New Jersey's Lead Safe Housing Act, signed into law in July 2021, required owners of
residential rental properties built before 1978 to register their properties with the NJDCA by July
22, 2022, and to conduct lead-based paint inspections within two years of registration. This was a
landmark expansion of mandatory lead safety requirements.
5. Under N.J.A.C. 8:63, what credential is required for an individual who directly supervises
lead abatement workers on an abatement project?
A. Lead Inspector Certification
B. Lead Risk Assessor Certification
C. Lead Supervisor Certification
D. Lead Project Designer Certification
Correct Answer: C. Lead Supervisor Certification
Rationale: N.J.A.C. 8:63 requires that a Lead Supervisor be present on-site and directly supervise
all lead abatement workers during abatement activities. While the Project Designer prepares the
abatement plan, the Supervisor is the individual who is physically present overseeing day-to-day
work practices.
6. What is the minimum age requirement for a lead abatement worker under New Jersey
regulations?
A. 16 years old
B. 18 years old
C. 21 years old
D. There is no minimum age requirement
Correct Answer: B. 18 years old
Rationale: N.J.A.C. 8:63, consistent with federal OSHA regulations (29 CFR 1926.62), requires that
lead abatement workers be at least 18 years of age. Workers under 18 are prohibited from
engaging in lead abatement activities due to the heightened health risks associated with lead
exposure to developing bodies.
3
, 7. Under N.J.A.C. 8:63-7.2, how long must a certified lead abatement firm retain project
records, including clearance reports and waste manifests?
A. 1 year
B. 3 years
C. 5 years
D. 10 years
Correct Answer: B. 3 years
Rationale: N.J.A.C. 8:63-7.2 requires lead abatement firms to maintain all project records,
including clearance reports, waste disposal documentation, and daily work logs, for a minimum of
three years. This record retention requirement ensures regulatory compliance and allows for
subsequent audit if needed.
8. According to New Jersey law, a lead abatement contractor must notify the NJDOH at least
how many days before beginning an abatement project?
A. 3 business days
B. 5 business days
C. 10 business days
D. 15 business days
Correct Answer: B. 5 business days
Rationale: N.J.A.C. 8:63-6.2 requires lead abatement contractors to provide written notification to
the NJDOH at least five business days before commencing any lead abatement project. This
notification must include project location, scope of work, certified personnel assigned, and the
anticipated schedule of activities.
9. Under N.J.A.C. 5:17, what is the consequence for a property owner who fails to correct a
lead-based paint violation cited during a housing inspection?
A. A written warning with no further consequences
B. Fines of up to $10,000 per day per violation
C. Immediate property seizure by the state
D. Mandatory enrollment in a lead safety education program only
Correct Answer: B. Fines of up to $10,000 per day per violation
Rationale: Under N.J.A.C. 5:17, the Bureau of Housing Inspection can impose civil administrative
penalties of up to $10,000 per day per violation for property owners who fail to abate cited lead-
based paint hazards within the prescribed timeframe. Repeated noncompliance may also result in
court actions and placement on the Unfit List of multiple dwellings.
10. Which New Jersey statute requires physicians and healthcare providers to report cases of
elevated blood lead levels in children to the NJDOH?
A. New Jersey Lead Safe Housing Act (P.L. 2021, c. 131)
B. New Jersey Lead Poisoning Prevention Act (N.J.S.A. 26:2-131 et seq.)
4
Examination Prep — 2026/2027
100 Exam-Style Questions with Detailed Rationales
New Jersey Department of Health (NJDOH) / Department of Community Affairs (DCA)
Lead Certification Examination
100 Questions | Comprehensive Coverage | NJDOH/DCA/EPA-Aligned Format
Preparation Material — 2026/2027 Edition
, Domain 1: New Jersey Lead Regulations & Statutes
1. Under N.J.A.C. 8:63, which entity is primarily responsible for administering and enforcing
lead-based paint hazard control standards in New Jersey?
A. New Jersey Department of Health (NJDOH)
B. New Jersey Department of Environmental Protection (NJDEP)
C. New Jersey Department of Community Affairs (DCA)
D. New Jersey Department of Labor (NJDOL)
Correct Answer: A. New Jersey Department of Health (NJDOH)
Rationale: N.J.A.C. 8:63 designates the New Jersey Department of Health (NJDOH) as the
primary authority for lead-based paint hazard evaluation and control. While DCA shares some
abatement oversight through the Bureau of Housing Inspection, NJDOH holds primary regulatory
authority for lead hazard standards and certification.
2. According to N.J.A.C. 8:63-1.3, what is the definition of a 'lead-based paint hazard'?
A. Any paint containing lead at any concentration on any surface
B. Any condition that causes exposure to lead from lead-contaminated dust, lead-
contaminated soil, or deteriorated lead-based paint
C. Paint that has a lead concentration of 1.0 mg/cm² or greater as determined by XRF analysis
D. Any painted surface in a building constructed before 1960
Correct Answer: B. Any condition that causes exposure to lead from lead-
contaminated dust, lead-contaminated soil, or deteriorated lead-based paint
Rationale: N.J.A.C. 8:63-1.3 defines a lead-based paint hazard broadly as any condition that
causes exposure to lead from lead-contaminated dust, soil, or deteriorated lead-based paint. This
definition is consistent with the federal EPA/HUD definition and encompasses deteriorated paint,
dust, and soil hazards, not just the paint itself.
3. Under N.J.A.C. 5:17 (the Hotel and Multiple Dwelling Law), which types of properties are
subject to mandatory lead-based paint inspections?
A. Single-family owner-occupied homes
B. Residential buildings containing three or more dwelling units, including hotels and
rooming houses
C. Commercial office buildings and retail spaces
D. Industrial facilities and warehouses
Correct Answer: B. Residential buildings containing three or more dwelling units,
including hotels and rooming houses
Rationale: N.J.A.C. 5:17, which implements the Hotel and Multiple Dwelling Law, requires periodic
lead-based paint inspections for residential buildings with three or more dwelling units, including
2
, hotels and rooming houses. Single-family owner-occupied homes are generally exempt, and
commercial/industrial properties are outside the scope.
4. New Jersey's Lead Safe Housing Act (P.L. 2021, c. 131) requires landlords to register and
certify rental properties. What is the registration deadline for properties built before 1978?
A. All properties were required to register by July 22, 2022
B. Registration is required within 90 days of a tenant's occupancy
C. Registration is required only upon turnover of a rental unit
D. Registration is voluntary and not mandated by statute
Correct Answer: A. All properties were required to register by July 22, 2022
Rationale: New Jersey's Lead Safe Housing Act, signed into law in July 2021, required owners of
residential rental properties built before 1978 to register their properties with the NJDCA by July
22, 2022, and to conduct lead-based paint inspections within two years of registration. This was a
landmark expansion of mandatory lead safety requirements.
5. Under N.J.A.C. 8:63, what credential is required for an individual who directly supervises
lead abatement workers on an abatement project?
A. Lead Inspector Certification
B. Lead Risk Assessor Certification
C. Lead Supervisor Certification
D. Lead Project Designer Certification
Correct Answer: C. Lead Supervisor Certification
Rationale: N.J.A.C. 8:63 requires that a Lead Supervisor be present on-site and directly supervise
all lead abatement workers during abatement activities. While the Project Designer prepares the
abatement plan, the Supervisor is the individual who is physically present overseeing day-to-day
work practices.
6. What is the minimum age requirement for a lead abatement worker under New Jersey
regulations?
A. 16 years old
B. 18 years old
C. 21 years old
D. There is no minimum age requirement
Correct Answer: B. 18 years old
Rationale: N.J.A.C. 8:63, consistent with federal OSHA regulations (29 CFR 1926.62), requires that
lead abatement workers be at least 18 years of age. Workers under 18 are prohibited from
engaging in lead abatement activities due to the heightened health risks associated with lead
exposure to developing bodies.
3
, 7. Under N.J.A.C. 8:63-7.2, how long must a certified lead abatement firm retain project
records, including clearance reports and waste manifests?
A. 1 year
B. 3 years
C. 5 years
D. 10 years
Correct Answer: B. 3 years
Rationale: N.J.A.C. 8:63-7.2 requires lead abatement firms to maintain all project records,
including clearance reports, waste disposal documentation, and daily work logs, for a minimum of
three years. This record retention requirement ensures regulatory compliance and allows for
subsequent audit if needed.
8. According to New Jersey law, a lead abatement contractor must notify the NJDOH at least
how many days before beginning an abatement project?
A. 3 business days
B. 5 business days
C. 10 business days
D. 15 business days
Correct Answer: B. 5 business days
Rationale: N.J.A.C. 8:63-6.2 requires lead abatement contractors to provide written notification to
the NJDOH at least five business days before commencing any lead abatement project. This
notification must include project location, scope of work, certified personnel assigned, and the
anticipated schedule of activities.
9. Under N.J.A.C. 5:17, what is the consequence for a property owner who fails to correct a
lead-based paint violation cited during a housing inspection?
A. A written warning with no further consequences
B. Fines of up to $10,000 per day per violation
C. Immediate property seizure by the state
D. Mandatory enrollment in a lead safety education program only
Correct Answer: B. Fines of up to $10,000 per day per violation
Rationale: Under N.J.A.C. 5:17, the Bureau of Housing Inspection can impose civil administrative
penalties of up to $10,000 per day per violation for property owners who fail to abate cited lead-
based paint hazards within the prescribed timeframe. Repeated noncompliance may also result in
court actions and placement on the Unfit List of multiple dwellings.
10. Which New Jersey statute requires physicians and healthcare providers to report cases of
elevated blood lead levels in children to the NJDOH?
A. New Jersey Lead Safe Housing Act (P.L. 2021, c. 131)
B. New Jersey Lead Poisoning Prevention Act (N.J.S.A. 26:2-131 et seq.)
4
