UL has been involved in the HVAC/R industry since its inception. Flammable refrigerants offer promise to the U.S. market, but demands to keep charge limits low while meeting both EPA and DOE requirements challenge manufacturers. As an industry expert and EPA-recognized certification body for the ENERGY STAR® program, UL is well equipped to help you overcome complex design challenges associated with these new chemicals. For added flexibility to meet your needs in this evolving space, our services are designed to be modular, allowing you to benefit from UL’s expertise when you need it most. To capture all current market changes, ease global market access and simplify testing, UL is also transitioning our traditional standards, including UL-1995 and UL-484, to harmonized IEC standards.