HVAC Contractor License New York: NYC, Nassau and EPA 608

New York doesn’t have a statewide HVAC license. That’s why there’s so much conflicting information online. Whether you need a license, and which one, depends entirely on where you’re working.

There’s no single credential you earn from Albany and call it done. Licensing authority in New York sits at the county and municipal level. What you need depends on where you’re working, what equipment you’re touching, and whether the job is residential or commercial. A license valid in Nassau County doesn’t automatically cover you in New York City. An NYC credential doesn’t transfer to Westchester.

The one exception is federal. EPA Section 608 certification applies everywhere in the country, and you can’t legally handle refrigerants without it. Get that first, then layer on what your jurisdiction requires.

Do You Need an HVAC License in New York?

It depends on where you’re working and what you’re doing.

New York State does not issue a statewide HVAC contractor license. Requirements are set by counties and municipalities, and they vary significantly. What’s required in New York City is different from what’s required in Nassau County, which is different again from what Buffalo or Rochester require.

That said, if you’re handling refrigerants anywhere in the state, EPA Section 608 certification is always required. That’s a federal requirement under the Clean Air Act and it applies regardless of what any local authority does or doesn’t ask for.

So the short answer: yes, you almost certainly need credentials to do HVAC work in New York. The specific ones depend on your jurisdiction.

EPA Section 608: The One Credential Every HVAC Tech Needs

Under Section 608 of the Clean Air Act (40 CFR Part 82, Subpart F), any technician who maintains, services, repairs, or disposes of equipment that could release regulated refrigerants must be certified. That’s federal law.

The EPA defines “technician” broadly. If you’re attaching gauges to measure system pressure, adding or removing refrigerant, or doing anything that opens the refrigerant circuit, you need this credential. Many mini-split installations involve regulated refrigerant work that requires EPA Section 608 certification.

There are four certification types. Type I covers small appliances with five pounds of refrigerant or less. Type II covers high- and very high-pressure systems, including standard residential and commercial AC, heat pumps, and commercial refrigeration. Type III covers low-pressure appliances like large chillers. Universal covers all three and is what most working HVAC technicians carry.

You pass a proctored exam administered by an EPA-approved certifying organization. There’s a Core section covering regulations and safety, plus the type-specific section or sections. To earn Universal, you pass all four. The certification never expires and doesn’t require renewal. Most employers expect technicians to hold Universal certification because it covers virtually every type of HVAC equipment.

Apprentices registered in a state or federally approved program can work with refrigerants under direct, continuous supervision without their own certification, but only for two years from their registration date. After that, they take the exam or stop handling refrigerants.

Licensing in New York City

NYC has its own regulatory structure, managed primarily by two agencies: the NYC Department of Buildings (DOB) and the NYC Department of Consumer and Worker Protection (DCWP).

There’s no HVAC-specific license issued by the DOB. What you need depends on the type of work:

Home Improvement Contractor (HIC) License

Any contractor doing residential work in New York City with a total cost over $200 must hold a Home Improvement Contractor license from DCWP. That includes installing, replacing, or repairing heating and cooling systems in homes and apartment buildings.

To apply, you’ll need proof of general liability insurance naming DCWP as certificate holder, workers’ compensation coverage (or a valid exemption certificate from the NYS Workers’ Compensation Board at wcb.ny.gov), a NY State Sales Tax ID, and proof of business and home address. One qualifying individual per business, owner, officer, or director holding 10% or more, must pass the Home Improvement Exam through ExamBuilder. You can schedule it 24 hours after DCWP processes your completed application.

Applications are submitted through DCWP’s online portal. In-person appointments are available at 42 Broadway, New York, NY 10004 or at the NYC Small Business Support Center in Jamaica, Queens.

Oil Burner Equipment Installer License (Class A and Class B)

If you’re installing or servicing oil-burning heating equipment in New York City, you need an Oil Burner Equipment Installer license from the NYC DOB.

Class A is for residential and commercial oil-burning equipment. You need at least four years of practical experience in oil-burning equipment installation, all occurring within the seven years prior to your application, under the direct and continuing supervision of a NYC-licensed Class A Oil Burner Equipment Installer.

Class B is limited to residential and small commercial work using domestic-grade fuel oils. It requires three years of experience within the five years prior to application under a licensed installer.

Both classes require passing a written exam and a practical exam. You apply for the written exam using form LIC41, selecting the Oil Burner box and indicating your class. The written exam application fee is $585. After passing the written, you apply for the practical using form LIC42. Practical exams are not held in July or August due to heat conditions at the testing site.

Once you pass both exams and complete a background investigation through the DOB NOW Portal, you’ll receive your license. Licenses renew every three years. The renewal fee is $150 filed on time, $200 if you’re late.

All applications go through DOB NOW: Licensing. No walk-ins, no paper applications.

A note on gas piping

If your work involves gas piping in New York City, that work must be performed by a NYC-licensed Master Plumber. No HVAC credential covers it. This catches people off guard. If you’re running your own gas connections without a Master Plumber, you’re outside the scope of any license the DOB issues.

A note on electrical work

The same logic applies to electrical. New panel connections, new circuits, and disconnect wiring on HVAC installations in New York City must be performed by a NYC-licensed Master or Special Electrician. Your HVAC license doesn’t cover it. If that work is in scope, you need a licensed electrician on the job.

Licensing in Nassau County

Nassau County regulates residential contractors independently from New York City, so contractors crossing county lines often discover they need an entirely different license. Like many New York counties, Nassau handles this locally rather than through the state. Nassau County requires a Home Improvement Contractor license issued by the Nassau County Department of Consumer Affairs for residential HVAC work. The license is governed by Nassau County Administrative Code Title D 21-10 through 21-11.16.

Requirements include current general liability insurance, workers’ compensation coverage or a CE-200 exemption form from the NYS Workers’ Compensation Board, a NY State Sales Tax ID, proof of business address, proof of identity, and a completed application. The license is issued for two years and must be displayed conspicuously at each business location, with a copy in each vehicle.

Nassau County runs a judgment search on every applicant. Outstanding tax liens, judgments, or unpaid child support must be resolved before the application moves forward.

A Nassau County license doesn’t cover you in NYC, Suffolk County, or Westchester. Each jurisdiction has its own system.

Other Municipalities

Outside of New York City and the major suburban counties, HVAC licensing requirements vary by city and town. Verify directly with the local building department in every jurisdiction where you plan to work before taking on jobs there.

What to Do Before You Take on Jobs in a New Area

Confirm with the local building department before starting. Licensing requirements in New York differ from town to town. Something permitted in one county may require a separate credential one county over.

Get your EPA Section 608 if you don’t have it. That credential is non-negotiable for refrigerant work anywhere in the state, and Universal certification is worth the extra steps if you’re doing a range of commercial and residential work.

If you’re working in New York City, get the HIC license from DCWP first. If oil-burning equipment is in scope, add the DOB Oil Burner credential. Don’t assume one covers the other.

Once you’re licensed, the next challenge is keeping the paperwork straight. Different jurisdictions require license numbers on different documents: in New York City your HIC number goes on permit applications, in Nassau County it goes on every contract and every vehicle. Rather than tracking that manually across jobs, Cinderblock automatically carries your license number through to every estimate and invoice.