The landscape of the HVAC industry is witnessing a paradigm shift, fueled by crucial environmental decisions. As countries around the world strive to make positive environmental changes, the United States has taken a pivotal step to drastically reduce the use of high Global Warming Potential (GWP) hydrofluorocarbons (HFCs) in air conditioning and refrigeration systems. What does this mean for HVAC company owners, and how will it shape the future of the industry? Let’s unpack the nuances of this impactful decision.

The New Standards in Brief

A significant milestone in US environmental regulations, the EPA has enforced measures that limit new air conditioners and heat pumps to refrigerants with a GWP of 700. In parallel, supermarket refrigeration systems now need to adhere to a GWP of 150. This monumental decision arrived shortly after Europe’s deliberation on revising its F-gas regulations, signaling a global alignment towards greener alternatives.

The Two-Pronged Approach

The EPA’s transformative strategy is twofold. Firstly, a clear transition is underway to integrate efficient and climate-conscious technologies in the new generation of refrigeration, heating, and cooling systems. This directly translates to a reduced dependency on HFCs, especially when more eco-friendly alternatives are on the horizon. Secondly, there’s an emphasis on the judicious management and reuse of existing HFCs. This includes initiatives to curb leaks from equipment and promote a thriving American industry centered on HFC recycling and reclamation.

Timeline for Compliance

The underpinnings of these rules, based on the American Innovation and Manufacturing (AIM) Act, envision an 85% cut in HFC supply by 2036. For HVAC company owners, the clock is ticking, with crucial deadlines starting as early as 2025. These restrictions, varying based on the equipment type and usage, are poised to set a new norm in HVAC manufacturing, distribution, and export.

Refrigerant Choices

While the 700 GWP limit will still permit the use of specific A2L refrigerants like R32 and R454B, it rules out the potential of Honeywell’s anticipated R466A, owing to its slightly elevated GWP of 733. Consequently, HVAC businesses must strategically align their product offerings and sourcing with these newly introduced benchmarks.

Broader Implications for Refrigeration

In the refrigeration domain, the 150 GWP cap is set to become the gold standard, with specific exceptions in place based on equipment type and charge capacity. For HVAC company owners in the refrigeration sector, the onus will be on adherence to these stipulations while optimizing equipment for efficiency and compliance.

A Positive Climate Impact

These revamped regulations aren’t mere compliance checkpoints; they signify a broader industry transition towards sustainable practices. From an enhanced focus on leak reductions to the promotion of reclaimed refrigerants, the overarching goal is clear – curbing the environmental impact of HVAC systems. Christina Starr of the US-based Environmental Investigation Agency aptly captures the sentiment by emphasizing the inducement for companies to foster a holistic, cradle-to-grave approach to meet their environmental targets.


For HVAC company owners, these shifts are much more than regulatory guidelines; they’re a clarion call to reimagine and redefine industry standards. While the immediate task will be to align business strategies with the new regulations, the long-term vision should focus on spearheading innovation and sustainable practices. Embracing these changes won’t just be about compliance; it will be about leadership in an era of environmental consciousness.

TL;DR: The EPA has introduced transformative regulations to reduce the use of high GWP hydrofluorocarbons (HFCs) in the HVAC industry. New air conditioners and heat pumps are now limited to refrigerants with a GWP of 700, and supermarket refrigeration systems to a GWP of 150. With compliance deadlines starting from 2025, HVAC company owners must adapt to these changes. While the immediate focus will be on aligning with regulations, the broader vision underscores a commitment to environmental sustainability and industry leadership.


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