Is R-410A refrigerant banned in 2026?

No. R-410A is not banned. What happened is that manufacturers can no longer produce new residential split-system AC and heat pump equipment using R-410A as of January 1, 2025. However, existing R-410A equipment is legal to operate, service, and repair, and R-410A refrigerant itself remains legal to buy, sell, and use for servicing existing systems.

What refrigerant is replacing R-410A?

The two primary replacements are R-454B (a blend of R-32 and R-1234yf with a GWP of 466, backed by Carrier, Daikin, Bosch, and Lennox) and R-32 (a single-component refrigerant with a GWP of 675, used by Mitsubishi, Fujitsu, and some Daikin lines). Both are classified as A2L — mildly flammable — and require updated safety training for contractors.

How much has R-410A price increased?

R-410A prices have risen approximately 40-70% from 2022 baseline levels, driven by the AIM Act's phasedown schedule which reduced allowed US production to 60% of baseline in 2024. Prices are expected to continue rising as supply tightens further.

Do HVAC contractors need A2L certification?

Contractors working with the new R-454B and R-32 refrigerant systems need updated safety training for A2L (mildly flammable) refrigerant handling, compliant with ASHRAE 34 and UL 60335-2-40 standards. Most manufacturers offer this training, and it's increasingly required for installing or servicing new equipment.

The R-410A Phase-Down Is Here: What Every HVAC Contractor Needs to Know in 2026

If you service or install HVAC systems, the R-410A phase-down is your present reality. New R-410A residential equipment stopped being manufactured on January 1, 2025. Prices for R-410A refrigerant have climbed significantly since 2022. And your customers are starting to ask questions you need good answers for.

There's also a lot of bad information out there. Some contractors are telling homeowners their R-410A systems are "illegal" and need immediate replacement. That's not true. It's the kind of thing that erodes trust in the entire trade.

Here's what's actually happening, what it means for your business, and how to be the contractor who gives straight answers.

What the AIM Act Actually Says

The American Innovation and Manufacturing (AIM) Act, signed in December 2020, directs the EPA to reduce HFC production and consumption by 85% by 2036 compared to a 2011-2013 baseline. R-410A has a high global warming potential (GWP of 2,088), so it's directly affected.

Key dates for contractors:

January 1, 2025: Manufacturers can no longer produce or import new residential and light commercial split-system AC and heat pump equipment using refrigerants with a GWP above 700. This effectively ended production of new R-410A split systems.
May 21, 2026: The EPA issued a final rule lifting the January 1, 2026 installation prohibition for R-410A equipment manufactured before 2025. Pre-2025 inventory can now be sold and installed indefinitely. ACCA advocated for this change, arguing the original deadline created unreasonable inventory-management burdens for contractors.
January 1, 2028: The same manufacturing restriction extends to packaged/self-contained units.
2029: HFC cap drops from 60% to 30% of baseline. This is expected to be the most disruptive single price event for R-410A refrigerant.
2036: Total HFC production capped at 15% of baseline.

What this does not mean: R-410A is not banned. Existing R-410A equipment is not illegal to operate, service, or repair. R-410A refrigerant itself remains legal to buy, sell, and use for servicing existing systems. The phase-down targets production volume, not field use.

What's Replacing R-410A

Two refrigerants have emerged as the primary successors:

R-454B is a blend of R-32 and R-1234yf with a GWP of 466 (about 78% lower than R-410A). Carrier, Daikin, Bosch, and Lennox have adopted it for residential split systems. It offers comparable cooling capacity but is not a drop-in replacement for existing equipment.

R-32 is a single-component refrigerant with a GWP of 675. It's been used internationally for over a decade, particularly in Japan and Europe. In the US, Mitsubishi, Fujitsu, and some Daikin lines use R-32, mostly in ductless mini-split and VRF applications.

Both are classified as A2L (mildly flammable). This is the biggest practical change for contractors. A2L refrigerants require updated safety training, different handling procedures, and compliance with ASHRAE 34 and UL 60335-2-40 standards. If you haven't taken A2L safety training yet, do it now.

What This Means for Your Existing Service Base

Every customer you've serviced in the last 10 years who has an R-410A system will eventually need one of three things:

Continued service at higher refrigerant costs. If their system has a leak and needs a recharge, the cost per pound is going up and will keep rising as supply tightens. ACCA and HARDI have warned that the installation deadline reversal, while good for inventory, will increase demand on a limited R-410A supply and push prices higher. Price refrigerant as a variable, not a fixed line item.

A repair-vs-replace conversation. For older R-410A systems (10+ years), the math on repair costs vs. a new R-454B or R-32 system is shifting. You should be able to run that analysis for any customer and give them honest numbers.

A full system replacement. New systems will use R-454B or R-32. This may require new linesets in some cases, updated electrical, and different service procedures going forward.

The contractors who win this transition are the ones who know which customers have R-410A equipment, how old those systems are, and can reach out with honest information before the customer gets a scare-tactic pitch from someone else.

How to Talk to Customers About This

Your customers are seeing headlines about refrigerant bans and getting nervous. Be the trusted voice.

Don't panic them. "Your system is not illegal. R-410A is still available for servicing. You don't need to replace anything today." Start there.

Be honest about costs. "R-410A costs more than it used to, and that trend will continue. If your system needs a significant recharge, we should talk about whether repair or replacement makes more financial sense."

Know your numbers. If a customer's system is 12 years old and needs a $1,200 repair including refrigerant, and a new R-454B system is $8,000-$12,000, walk them through the breakeven. That's the analysis that builds lifetime customers.

Frame upgrades as opportunity, not threat. New R-454B and R-32 systems are more energy efficient. Many qualify for federal tax credits and utility rebates. "When you're ready to upgrade, here's why the new systems are actually better" beats "you have to replace this before it's too late."

Protecting Your Business

Practical steps every HVAC contractor should be taking right now:

Get A2L certified. Take the manufacturer and safety training for R-454B and R-32. Don't wait until you lose a job because you can't install the equipment a customer wants.
Audit your customer equipment records. Do you know which customers have R-410A systems? Do you know how old they are? If this information is scattered across invoices, work orders, and your memory, that's a problem.
Build relationships with multiple refrigerant distributors. Supply is tightening. Contractors with standing relationships at two or three distributors will have an easier time sourcing R-410A when they need it.
Update your pricing model. Stop quoting refrigerant at a fixed per-pound rate. Quote it at current market price with a note that prices are subject to change.
Stock wisely. Having some R-410A on hand makes sense. Hoarding a pallet of it is a gamble on a depreciating asset.

The Bottom Line

The R-410A phase-down is the biggest shift in the HVAC industry since the R-22 transition. But unlike R-22, this one has a longer runway, better replacement options, and more clarity on the timeline. The contractors who treat this as a customer education opportunity and not a sales tactic are the ones who will come out ahead.

Know your customers' equipment. Know the regulations. Give straight answers.

Sources: EPA AIM Act, ACCA Blog (May 2026), Federal Register HFC Allocations