Allison Engine Co. v. United States ex rel. Sanders, 553 U.S. 662 (2008), was a decision by the Supreme Court of the United States holding that plaintiffs under the False Claims Act must prove that the false claim was made with the specific intent of inducing the government to pay or approve payment of a false or fraudulent claim, rather than merely defrauding a contractor. Congress overruled this decision with the Fraud Enforcement and Recovery Act of 2009.