On September 23, 2021, the US Environmental Protection Agency (EPA) announced final rules to phase down production and consumption of specified hydrochlorofluorocarbons (HFCs) (I wrote about the proposal HERE). These HFCs are used in refrigeration and air conditioning and fire suppression, and as foam blowing agents and solvents. These rules are consistent with directives included in the 2016 Kigali Amendment to the United Nations-sponsored Montreal Protocol on Substances that Deplete the Ozone Layer (which I wrote about HERE). The US finally enacted statutory support for Kigali-like requirements in the December 2020 coronavirus relief bill (American Innovation and Manufacturing Act of 2020 (AIM Act)), which included dozens of unrelated provisions within its 5,593 pages.
