In a closely watched appeal, the U.S. Court of Appeals for the First Circuit ruled on February 18 that to satisfy the causation requirement in False Claims Act (FCA) actions based on alleged Anti-Kickback Statute (AKS) violations, the government or relator must prove that the alleged kickbacks were the “but-for” cause of the defendant’s allegedly false claims. The First Circuit joins the Sixth and Eighth Circuits in adopting this defendant-favorable standard, with only the Third Circuit requiring a less-stringent showing.Continue Reading First Circuit Adopts “But-For” Causation Standard for Proving Kickback FCA Violations