The Department of Ecology adopted amendments to regulations governing hydrofluorocarbons (HFCs) and the air quality fee rule. The amendments, among other things, set maximum global warming potential thresholds for HFCs in various applications, establish a refrigerant management program with registration and reporting requirements for owners/operators of large systems, mandate service practices for technicians, amend product labeling and disclosure requirements and establish fees to cover the costs of implementing and enforcing the refrigerant management program. See https://lawfilesext.leg.wa.gov/law/wsr/2023/24/23-24-041.htm.