The US started limiting HFC usage on January 1st, 2022, following the passage of the American Innovation in Manufacturing (AIM) Act of December 2020. Prior to the legislation, the EPA did not have the authority to make changes to HFC usage, and HFC policy decisions fell largely to the states, 11 of which had already begun HFC phasedown measures under the US Climate Alliance. The EPA's current phasedown schedule is aiming to reduce the production and consumption of HFCs by 85% below baseline levels gradually by 2036. This means that individuals and organizations that currently use HFCs like R-404A, for example, have a decision to make.