There is no single HVAC license in New York City.
New York State does not issue a statewide HVAC license — licensing is local — and the city's Department of Buildings has no general HVAC trade on its skilled-trade list.
What NYC techs need instead depends on the task: a permitted refrigerating system must be supervised while it operates by an FDNY Q-01 Refrigerating System Operating Engineer, installing oil-burning equipment takes the DOB Oil Burner Equipment Installer license, and refrigerant handling requires EPA 608 certification.
Why NYC licenses differ from New York State
New York State does not issue a statewide HVAC license — no state HVAC technician license and no state HVAC contractor license.
HVAC-related licensing is done by cities and counties.
That is a formal negative rather than a statute we can quote: the New York State labor and licensing pages our research reviewed show no HVAC license issued by a state agency and point to local licensing — but it is one more reason to treat the city, not the state, as the authority on what you need.
New York City's credential list confirms the split.
The Department of Buildings' skilled-trade licenses are Electrician, Elevator Agency Director & Inspector, High Pressure Boiler Operating Engineer, Hoisting Machine Operator, Master Plumber & Master Fire Suppression Piping Contractor, Oil Burner Equipment Installer, Rigger, Sign Hanger, Site Safety Professional and Welder — there is no general "HVAC" license.
Your required credential follows the equipment in front of you, not a trade-wide card.
Beyond the DOB trade list, two equipment-specific layers apply to HVAC work.
Gas piping for HVAC equipment in NYC is plumbing work: it falls under the Licensed Master Plumber, and workers doing gas work need a DOB Gas Work Qualification.
And above the city layer sits a federal one — anyone who could reasonably be expected to violate the integrity of a refrigerant circuit while maintaining, servicing, repairing or disposing of appliances with CFC, HCFC or substitute refrigerants such as HFCs must pass an EPA-approved certification exam under Clean Air Act rules (40 CFR 82.161).
That EPA 608 certification is not a license, and EPA 608 certification works the same in every state.
States structure the ladder — worker license, contractor license or none — in different ways, which is what makes the city page separate: HVAC license requirements are set state by state, and New York is one of the states where the real credentialing happens below the state level.
Even within the metro area it differs: Westchester County licenses plumbers and electricians county-wide, but its trade-license page lists no HVAC license.
Confirm with the city and the FDNY
Refrigeration and oil burner credentials
The refrigeration credential is FDNY's, not DOB's.
In NYC, any refrigerating system that needs an FDNY permit must be supervised while operating by a holder of the FDNY Certificate of Qualification Q-01 — Refrigerating System Operating Engineer (RSOE).
The scope is operating supervision: a permitted refrigeration plant runs under a Q-01 holder's watch.
Q-01 applicants need a high school diploma or GED, EPA Universal Technician Certification, and one of three qualifying routes: a NYC High Pressure Boiler Operating Engineer license, a USCG marine engineer license or a PE license; OR a 200-hour FDNY-certified Refrigeration Operating Engineer course that includes 25+ hours of field/shop time; OR 1 year of qualifying practical experience within the preceding 3 years.
Renewal adds its own requirement: a 7-hour live A2L refrigerant training course from an FDNY-approved refrigeration school — except for holders who took the FDNY computer test after January 1, 2025.
The oil burner side is a DOB license.
NYC licenses Oil Burner Equipment Installers in two classes: Class A covers any oil-burning equipment, and Class B covers equipment using domestic-grade fuel oils No. 1–4.
The license fee is $100, renewal is $75, and the term is 3 years.
How to apply: exams, fees and timing
Two agencies mean two application shapes.
FDNY runs the Q-01 exams; DOB runs a written test and, where a license requires one, a practical.
The fees are set by each agency and they are exact numbers worth knowing before you budget:
Pick the credential your work needs
Refrigeration on a permitted system points to FDNY Q-01. Installing oil-burning equipment points to the DOB Oil Burner Equipment Installer license. Gas piping runs through the plumbing side, via the DOB Gas Work Qualification.Meet the prerequisites
For Q-01: a high school diploma or GED, EPA Universal Technician Certification, and one qualifying route — the High Pressure Boiler Operating Engineer/marine/PE license, the 200-hour FDNY-certified course (25+ hours field/shop), or 1 year of practical experience within the preceding 3 years.Pass the written or computer exam
Q-01 starts with the Z-51 computer exam, a $60 application fee. DOB written license exams (LIC41) cost $585 — the same written fee covers Master Plumber, Master Fire Suppression Piping Contractor, Oil Burner Equipment Installer, High Pressure Boiler Operating Engineer and the Gas Work Qualification written exam.Pass the practical
After the Z-51, Q-01's Z-52 practical exam is $225, with up to three attempts at $225 each. DOB practical exams (LIC42) cost $530. DOB practicals for Oil Burner Equipment Installer and High Pressure Boiler Operating Engineer are not held in July and August, and you have 24 months from passing the written test to pass the practical.Keep the credential current
Q-01 renewal requires the 7-hour live A2L course unless you took the FDNY computer test after January 1, 2025. The oil burner license runs a 3-year term with a $75 renewal.
Before you schedule an exam, check what employers are asking for: browse the live HVAC technician jobs listings.
Plan around the summer blackout
Lookup: verifying an NYC license and who to ask
DOB-issued credentials — Oil Burner Equipment Installer, Gas Work Qualification, Master Plumber and the rest — are verifiable through the Department of Buildings' "Check License Status" tool on nyc.gov/buildings.
The Q-01 certificate is FDNY's, so its status and application questions go to FDNY; our research did not capture a public FDNY lookup page, so ask FDNY directly rather than guessing at a portal.
Outside the city, Westchester County runs its own Trade Licenses Search for the licenses it issues.
For license lookup outside New York, our guide to looking up an HVAC license covers the portals our research verified.
This page is career information, not legal or licensing advice. New York City's credential rules are set by the NYC Department of Buildings and the FDNY — confirm the current requirements with the agency that issues the credential before you apply.