The California Air Resources Board (CARB) held its latest public workshop in July to discuss its proposals for reducing high-GWP HFCs from stationary refrigeration and air conditioning equipment. Under regulations passed in 2016, California is committed to reducing HFC emissions in the state by 40 percent below 2013 levels by 2030.
To meet this mandate, CARB is proposing a GWP limit of 150 for new stationary refrigeration systems containing more than 50 pounds of refrigerant, starting on Jan. 1, 2022. On the air conditioning side, there is a proposed GWP limit of 750 for all new stationary air conditioning systems (residential and commercial) starting Jan. 1, 2023, and the same GWP limit for new chillers, effective Jan. 1, 2024.