Reducing greenhouse gas emissions associated with hydrofluorocarbons.

SB 5438 limits the sale of high-impact refrigerants in Washington by phasing out virgin hydrofluorocarbons (HFCs) with global warming potential above 2,200 by 2027, 1,500 by 2030, and 750 by 2033. It requires state agencies to use reclaimed refrigerants for maintenance and establishes a task force to study transition strategies for HVAC and refrigeration businesses. The bill directly affects businesses selling, distributing, or using HFCs in cooling systems, promoting climate-friendly alternatives and reclaimed refrigerant use. It includes temporary exemptions for technical challenges but mandates a 2027 report on implementation progress.