Per the AIM Act, starting January 1, 2025, most new comfort cooling systems are required to use lower-GWP refrigerants like R-32 or R-454B, which are classified as mildly flammable (A2L). Due to this ...
This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.
This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.
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