On April 6, 2026, Atmus Filtration filed a notice of dismissal in its challenge to the IEEPA tariffs. Atmus Filtration v. United States, CIT #26-01259 (“Atmus”) was selected as the lead case by the U.S. Court of International Trade (“CIT”) on March 4, 2026. Atmus became the torch bearer for all IEEPA cases







