The Natural Resources Defense Council (NRDC), along with a coalition of states led by New York, declared victory in their lawsuit against the Environmental Protection Agency (EPA). On April 7, the U.S. Court of Appeals for the DC Circuit ruled that the EPA improperly suspended the limits on the use of HFCs in its 2018 guidance, which vacated Significant New Alternatives Policy (SNAP) Rules 20 and 21. The ruling thereby restores a prohibition on switching from ozone-depleting substances to HFCs in uses such as large refrigeration systems in supermarkets.