28/10/2026
Developing refrigeration equipment for the US market? EPA’s revised rules give some applications more time to move to refrigerants with a lower climate impact.
For new supermarket refrigeration systems, the stricter limits have moved to 1 January 2032. An interim limit applies from 1 January 2027.
The limits use global warming potential, or GWP, to compare how strongly refrigerants contribute to warming if released into the atmosphere. From 2032, these systems will need refrigerants with a GWP below 150 or 300, depending on how much refrigerant they contain and their configuration.
That distinction matters when choosing between R454A and R454C. R454A falls below the 300 threshold, but above 150. R454C falls below both. Meeting the GWP limit is one part of the decision; each refrigerant also has conditions governing where and how it can be used.
For a product range expected to remain in production beyond 2032, those future requirements belong in today’s design brief.
Senseair supports refrigerant leak detection for both R454A and R454C. Bring us into the discussion early so we can help you plan the sensing part of your design.
Read the revised rule: https://www.govinfo.gov/content/pkg/FR-2026-05-26/pdf/2026-10387.pdf?utm_source=facebook&utm_medium=social&utm_campaign=post&utm_content=link
And dive into our refrigerant portfolio here: https://senseair.com/refrigerants?utm_source=facebook&utm_medium=social&utm_campaign=post&utm_content=link/