Norton v. Southern Utah Wilderness Alliance, 542 U.S. 55 (2004), was a Supreme Court case that held that although the Administrative Procedure Act says that a person may challenge an agency's failure to act, this provision essentially just carries forward the writ of mandamus. Thus an agency cannot be compelled to act unless there is some non-discretionary, discrete act. Therefore, in this case, an interest group could not challenge an agency's failure to "act so as to preserve the wilderness" in accordance with the statute.