Washington
For Washington, equipment category is HFCs used in new equipment; gwp limit is less than 150; effective date is Jan 1, 2025; regulatory status is signed into law; regulation citation is Chapter 173-443 WAC, recorded from its source on 2026-08-05; source re-checked 2026-09-15.
- State
- Washington verified
- Equipment category
- HFCs used in new equipment verified
- GWP limit
- less than 150 verified
- Effective date
- Jan 1, 2025 verified
- Regulatory status
- signed into law our reading
- Regulation citation
- Chapter 173-443 WAC verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Washington has Finalized a rulemaking to update <https://ecology.wa.gov/getattachment/eb351094-2b5e-49ce-b626-c90092542a75/OTS-4615-6-For-Filing.pdf> Chapter 173-443 WAC for HFCs and other fluorinated greenhouse gases that: Established GWP threshold less than 150 for HFCs used in new equipment (Jan 1, 2025)
— nasrc.org, retrieved 2026-08-05
Source
- nasrc.orghttps://nasrc.org/hfc-policy-tracker/