On September 23, 2021, EPA issued a final rule entitled, “Phasedown of Hydrofluorocarbons: Establishing the Allowance Allocation and Trading Program under the American Innovation and Manufacturing (AIM) Act.” Specifically, the AIM Act directs EPA to phase down production and consumption of HFCs to 15% of their baseline levels in a stepwise manner by 2036 through an allowance allocation and trading program.

Figure 2: The HFC production and consumption phasedown schedule as outlined in the AIM Act. Courtesy of EPA)