Page 1 of 39
NYC DOB GAS WORK QUALIFICATION (LIMITED) EXAM –
COMPREHENSIVE 2026/2027 COMPLETE (150) CURRENT
TESTING QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES.
GAS WORK
Prepare effectively for the NYC DOB Gas Work Qualification Limited Exam with this
focused practice resource. It supports review of gas piping systems, limited gas work
procedures, installation and testing requirements, safety standards, building codes,
and regulatory compliance. Use the material to reinforce your technical knowledge,
practice key concepts, and identify areas that may require additional study. This
resource is suited for gas work professionals, plumbers, construction technicians,
and candidates preparing for the NYC DOB Limited Gas Work Qualification
examination.
MULTIPLE CHOICE.
SECTION 1: ELIGIBILITY & QUALIFICATION REQUIREMENTS (Questions 1–
15)
1. Which NYC agency is responsible for issuing Gas Work Qualifications?
(A) NYC Fire Department (FDNY)
(B) NYC Department of Environmental Protection (DEP)
(C) NYC Department of Buildings (DOB)
(D) NYC Department of Transportation (DOT)
Answer: (C) NYC Department of Buildings (DOB)
Rationale: The NYC Department of Buildings (DOB) enforces the Fuel Gas
Code and issues Gas Work Qualifications. Local Law 150 of 2016 requires
anyone performing gas work to possess either a Department-issued Master
Plumber License or a Qualification for Gas Work.
, Page 2 of 39
2. What is the minimum age requirement for a Limited Gas Work
Qualification?
(A) 16 years old
(B) 18 years old
(C) 21 years old
(D) 25 years old
Answer: (B) 18 years old
Rationale: Applicants must be at least eighteen (18) years old.
3. How many years of experience are required for a Limited Gas Work
Qualification?
(A) 3 months
(B) 6 months
(C) 1 year
(D) 5 years
Answer: (B) 6 months
Rationale: Limited Gas Work Qualification applicants must have at minimum
six (6) months of full-time experience performing plumbing work under the
direct and continuing supervision of a Licensed Master Plumber (LMP).
4. How long is a Limited Gas Work Qualification valid?
(A) 2 years
(B) 3 years
(C) 5 years
(D) 10 years
Answer: (C) 5 years
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Rationale: Limited Gas Work Qualifications expire five (5) years after
issuance.
5. Can a Limited Gas Work Qualification be renewed?
(A) Yes, indefinitely
(B) Yes, one time only
(C) No, it cannot be renewed or reissued
(D) Yes, with additional training
Answer: (C) No, it cannot be renewed or reissued
Rationale: NYC Administrative Code §28-423.4 states that the limited gas
work qualification shall expire five (5) years after issuance and may not be
renewed or reissued.
6. Under Local Law 150 of 2016, what happens when a Limited Gas Work
Qualification expires?
(A) It automatically upgrades to a Full Gas Work Qualification
(B) The individual must apply for a Full Gas Work Qualification
(C) It can be renewed for another five years
(D) It remains valid indefinitely
Answer: (B) The individual must apply for a Full Gas Work Qualification
Rationale: There is no automatic upgrade from Limited to Full Qualification.
When a Limited Qualification expires, the individual must apply for a Full Gas
Work Qualification. The Limited qualification is strictly a one-time, 5-year
credential.
7. Which of the following is NOT a requirement for a Limited Gas Work
Qualification?
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(A) Certificate of Completion from a DOB-approved 16-hour gas work training
program
(B) At least six months of full-time plumbing experience under an LMP
(C) Passing the DOB Gas Work Qualification written exam
(D) Five years of experience as a Journeyman Plumber
Answer: (D) Five years of experience as a Journeyman Plumber
Rationale: Five years of experience is required for a Full Gas Work
Qualification, not a Limited Qualification. Limited Qualification requires six
months of experience.
8. What form is used to apply for the Gas Work Qualification written
exam?
(A) LIC1
(B) LIC41
(C) LIC42
(D) DPL1
Answer: (B) LIC41
Rationale: LIC41 is the Written Exam Application form used to apply for the
written exam for Gas Work Qualification.
9. What is the fee for the Gas Work Qualification written exam?
(A) $250
(B) $395
(C) $585
(D) $750
Answer: (C) $585
NYC DOB GAS WORK QUALIFICATION (LIMITED) EXAM –
COMPREHENSIVE 2026/2027 COMPLETE (150) CURRENT
TESTING QUESTIONS AND CORRECT ANSWERS WITH
DETAILED RATIONALES.
GAS WORK
Prepare effectively for the NYC DOB Gas Work Qualification Limited Exam with this
focused practice resource. It supports review of gas piping systems, limited gas work
procedures, installation and testing requirements, safety standards, building codes,
and regulatory compliance. Use the material to reinforce your technical knowledge,
practice key concepts, and identify areas that may require additional study. This
resource is suited for gas work professionals, plumbers, construction technicians,
and candidates preparing for the NYC DOB Limited Gas Work Qualification
examination.
MULTIPLE CHOICE.
SECTION 1: ELIGIBILITY & QUALIFICATION REQUIREMENTS (Questions 1–
15)
1. Which NYC agency is responsible for issuing Gas Work Qualifications?
(A) NYC Fire Department (FDNY)
(B) NYC Department of Environmental Protection (DEP)
(C) NYC Department of Buildings (DOB)
(D) NYC Department of Transportation (DOT)
Answer: (C) NYC Department of Buildings (DOB)
Rationale: The NYC Department of Buildings (DOB) enforces the Fuel Gas
Code and issues Gas Work Qualifications. Local Law 150 of 2016 requires
anyone performing gas work to possess either a Department-issued Master
Plumber License or a Qualification for Gas Work.
, Page 2 of 39
2. What is the minimum age requirement for a Limited Gas Work
Qualification?
(A) 16 years old
(B) 18 years old
(C) 21 years old
(D) 25 years old
Answer: (B) 18 years old
Rationale: Applicants must be at least eighteen (18) years old.
3. How many years of experience are required for a Limited Gas Work
Qualification?
(A) 3 months
(B) 6 months
(C) 1 year
(D) 5 years
Answer: (B) 6 months
Rationale: Limited Gas Work Qualification applicants must have at minimum
six (6) months of full-time experience performing plumbing work under the
direct and continuing supervision of a Licensed Master Plumber (LMP).
4. How long is a Limited Gas Work Qualification valid?
(A) 2 years
(B) 3 years
(C) 5 years
(D) 10 years
Answer: (C) 5 years
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Rationale: Limited Gas Work Qualifications expire five (5) years after
issuance.
5. Can a Limited Gas Work Qualification be renewed?
(A) Yes, indefinitely
(B) Yes, one time only
(C) No, it cannot be renewed or reissued
(D) Yes, with additional training
Answer: (C) No, it cannot be renewed or reissued
Rationale: NYC Administrative Code §28-423.4 states that the limited gas
work qualification shall expire five (5) years after issuance and may not be
renewed or reissued.
6. Under Local Law 150 of 2016, what happens when a Limited Gas Work
Qualification expires?
(A) It automatically upgrades to a Full Gas Work Qualification
(B) The individual must apply for a Full Gas Work Qualification
(C) It can be renewed for another five years
(D) It remains valid indefinitely
Answer: (B) The individual must apply for a Full Gas Work Qualification
Rationale: There is no automatic upgrade from Limited to Full Qualification.
When a Limited Qualification expires, the individual must apply for a Full Gas
Work Qualification. The Limited qualification is strictly a one-time, 5-year
credential.
7. Which of the following is NOT a requirement for a Limited Gas Work
Qualification?
, Page 4 of 39
(A) Certificate of Completion from a DOB-approved 16-hour gas work training
program
(B) At least six months of full-time plumbing experience under an LMP
(C) Passing the DOB Gas Work Qualification written exam
(D) Five years of experience as a Journeyman Plumber
Answer: (D) Five years of experience as a Journeyman Plumber
Rationale: Five years of experience is required for a Full Gas Work
Qualification, not a Limited Qualification. Limited Qualification requires six
months of experience.
8. What form is used to apply for the Gas Work Qualification written
exam?
(A) LIC1
(B) LIC41
(C) LIC42
(D) DPL1
Answer: (B) LIC41
Rationale: LIC41 is the Written Exam Application form used to apply for the
written exam for Gas Work Qualification.
9. What is the fee for the Gas Work Qualification written exam?
(A) $250
(B) $395
(C) $585
(D) $750
Answer: (C) $585
