Before you act on a number here: which utility, zone and programs reach a building depends on its address, not its ZIP code. Confirm it for yours.
Who this is for: an owner or facilities director with heating or cooling equipment that is aging, failing, or quoted for replacement, in New York or New Jersey. The decision: repair it, replace it now, or defer, and what the refrigerant rules do to each option. The rules differ by state; each section says which state it describes.
The quote arrived, and the salesperson mentioned a deadline
A rooftop unit, split system, or VRF system is on borrowed time. A contractor has quoted a replacement, and somewhere in the conversation a refrigerant date came up: a system “can’t be installed after January,” or R-410A is “being phased out,” or the new equipment is “A2L now.” The date is real in one state and not in the other, and what it changes is the timing of a capital decision, not whether you can keep running what you have.
What is being regulated
Every refrigerant has a global warming potential (GWP), a number that compares its climate effect with carbon dioxide over a set period. R-410A, the refrigerant in most packaged air conditioners, heat pumps, and VRF systems installed in the last two decades, sits well above the limits now being set: New York’s rule caps new air-conditioning refrigerants at a GWP of 700 and classes R-410A with the high-GWP bulk refrigerants it bars from sale in 2030. The newer equipment uses lower-GWP refrigerants (R-32 and R-454B are the common ones in air conditioning) that are mildly flammable and carry an A2L safety classification. None of this changes the refrigerant already inside your building. The rules govern what may be newly installed, not what may keep running.
New York State: the window on R-410A packaged equipment closes January 1, 2027
This section applies statewide: New York City, Westchester, Long Island, and upstate.
New York regulates refrigerants through its own rule, 6 NYCRR Part 494, administered by the Department of Environmental Conservation. The amended rule took effect January 9, 2025. For residential and light-commercial air conditioning and heat pumps, new equipment has been limited to refrigerants with a GWP of 700 or less since January 1, 2026, with one extra year allowed for selling and installing equipment already made. That sell-through period ends January 1, 2027. R-410A VRF systems with pre-prohibition refrigerant may also be installed in New York only until that date.
Three details matter for a replacement decision:
- New York did not adopt the 2026 federal relief. The federal rule change described in the New Jersey section below lets pre-2025 inventory continue to be installed nationally. Part 494 incorporates federal terms only as they stood on its own effective date, so later federal extensions do not apply in New York. New York’s date stands.
- Products and systems are treated differently. A factory-charged packaged unit is a product. A site-assembled system is new the first time it is assembled, even from used components, and replacing an outdoor condensing unit can count as a new installation. A refrigeration system becomes “new” once 75% of its evaporators and 100% of its condensers have been replaced. This is why a partial replacement needs the same scrutiny as a full one.
- Servicing is always allowed. Using, servicing, repairing, renting, or transferring equipment that was legally installed is not prohibited, and the restrictions on refrigerant containers do not apply to servicing. A building that keeps its existing R-410A equipment is not out of compliance.
There is also a permit exception: a building permit issued before January 9, 2025 that specified the refrigerant extends the 2025 and 2026 prohibitions by one year for that project. In New York City a DOB main application qualifies. If a project was permitted before that date, check the application before assuming the January 2027 deadline applies.
Two further New York dates sit behind the 2027 one. Bulk virgin R-410A can no longer be sold in the state from 2030, which affects the service economics of a large R-410A fleet over its remaining life, and from January 1, 2029 a retrofit that changes the refrigerant is treated as a new installation. The rule has been challenged in court (the challenge was dismissed December 22, 2025 and an appeal was filed January 20, 2026); the rule remains in effect, and this piece does not predict the outcome.
New Jersey: R-410A equipment remains legal to install, with no calendar cutoff
This section applies to New Jersey.
New Jersey’s refrigerant law, P.L. 2019, c.507, bars the sale or installation of equipment using substitutes that the EPA’s SNAP program had restricted as of January 3, 2017. On that date, SNAP did not restrict R-410A for residential and light-commercial air conditioning and heat pumps, so New Jersey law never restricted it for that use. A 2023 amendment went further: no state code or regulation may prohibit a refrigerant the EPA designates as acceptable, provided the equipment is listed and installed to the applicable safety standards. New Jersey tracks the federal position.
The federal position changed in 2026. The EPA’s amended Technology Transitions rule, published May 26, 2026 and effective July 27, 2026, removed the January 1, 2026 installation deadline for residential and light-commercial systems built from components made or imported before January 1, 2025. That inventory may be installed until supplies run out. In New Jersey, then, R-410A residential and light-commercial equipment remains legal to install. “Legal again” is the wrong phrase; it never stopped being legal.
The federal relief did not extend to VRF. R-410A VRF systems may be installed nationally only through January 1, 2027, so for a VRF replacement the two states line up on the date even though they get there by different routes.
New Jersey has one reporting duty worth knowing about: facilities with systems holding 50 pounds or more of a refrigerant with a GWP of 150 or higher register with NJDEP and report annually under the greenhouse gas monitoring rule. That is a records obligation on existing equipment, not a bar on installing it.
What this does to the repair, replace, or defer decision
The refrigerant rules change the timing of a replacement and the sequence of a partial one. They do not, by themselves, make replacement the right answer. The questions that decide it are the same ones that decide any capital project: what the equipment is doing today, which failures are driving the complaints, and whether the distribution and controls problems would survive a like-for-like swap.
| If you are in New York | If you are in New Jersey |
|---|---|
| A like-for-like R-410A packaged or VRF replacement is possible only until January 1, 2027, and only with equipment already in the supply chain. After that date, new installations use lower-GWP equipment, which may change the equipment selection, piping, and safety requirements for an A2L refrigerant. | A like-for-like R-410A replacement of residential or light-commercial equipment remains possible while inventory lasts; the constraint is availability, not law. R-410A VRF has the same January 1, 2027 limit as everywhere else. |
| Replacing an outdoor condensing unit or a large share of a system’s components can make it a “new” installation under Part 494. Check the products-versus-systems test before approving a partial replacement. | No comparable test in state law. The federal rule governs what counts as new equipment. |
| Keeping and servicing the existing equipment is always permitted. Deferral is a legitimate option when the equipment is sound and the problems are in controls or distribution. | The same. |
Two things this piece will not tell you, because no citable public source supports them: what R-410A service will cost per pound in the coming years, and how much more A2L equipment costs than the equipment it replaces. Figures for both circulate in sales conversations. Ask for the source before letting either one drive the decision.
What a replacement-timing review looks at
For a decision like this, the evidence is operational, not a sensor list. The review establishes what the existing equipment is doing (run hours, failures, refrigerant charge history, and the complaints that started the conversation), whether the distribution and controls would carry over into a replacement, what the applicable refrigerant rule is for the building’s address, and which of the three options the evidence supports. It produces a dated comparison of repair, replace now, and defer, with the refrigerant deadline shown as one input among several.
Sources and dates
- 6 NYCRR Part 494 (amended rule effective January 9, 2025); NYSDEC Part 494 FAQ (updated May 2026); §494-1.11 on static incorporation of federal terms; §494-1.3 and §494-1.4 on products, systems, and category dates.
- P.L. 2019, c.507 (N.J.S.A. 26:2C-60 et seq.); P.L. 2023, c.178 (C.52:27D-123.18); N.J.A.C. 7:27E.
- EPA Technology Transitions amended final rule, published May 26, 2026, effective July 27, 2026.
- AHRI and HARDI v. NYSDEC, NY Supreme Court, Albany County, dismissed December 22, 2025; notice of appeal January 20, 2026.
- Last reviewed October 27, 2026. This piece changes meaning on January 1, 2027 and will be rewritten then.