U.S. EPA Significant New Alternatives Policy (SNAP) Rule 20 was partially vacated by the U.S. Court of Appeals for the D.C. Circuit and the U.S. Supreme Court declined to take up the appeal. On April 5, 2019, the D.C. Circuit court rendered judgement further narrowing the decision on SNAP 20. The EPA is working on a proposed rule in response to the court’s decision on SNAP Rule 20. EPA has not yet determined how they plan to revise the program.