EPA issued an Administrative Consent Order (ACO) and Consent Agreement and Final Order (CAFO) commencing and concluding an action against Steel Dynamics, Inc. (SDI) for alleged violations of the Clean Air Act. Specifically, SDI exceeded carbon monoxide emission limits in its Title V Permit at its EAF baghouse, failed to maintain baghouse fan amperages within allowable ranges in violation of the New Source Performance Standards for Electric Arc Furnaces (NSPS AAa), and failed to route emissions from its electric arc furnace to a control device in violation of the National Emission Standards for Hazardous Air Pollutants for Electric Arc Furnace Steelmaking Facilities (NESHAP YYYYY). The ACO requires SDI to submit records on a quarterly basis to demonstrate continued compliance with those conditions the facility was previously violating. The CAFO requires SDI to pay a $432,554 penalty.