FAQs & resources

Our team receives many questions regarding the hydrofluorocarbons (HFCs) rule, restrictions, and requirements. To best support the transition away from HFCs, we've consolidated educational resources for both the public and those affected by the rule below. 

If you're having trouble locating a specific resource or you have a question that isn't listed, please email our team at HFC@ecy.wa.gov for assistance. 

Frequently asked questions about compliance

We answer common questions about which businesses are affected by the 2019 law and what they need to do to comply. The answers reflect the current rule.