"UL Listing" has become essential for HVAC systems and signals a commitment to compliance with safety standards and regulations. As HVAC manufacturers update their equipment to bring it into compliance with SNAP Rule 25, updating UL listings is critical. This step shows that the equipment meets safety standards, especially if it contains refrigerants with lower Global Warming Potential (GWP). "UL Recognized components simplify the UL Listing process, significantly reduce the compliance effort and accelerate time to market.