The Homeland Security Investigations (HSI), Commercial Fraud Unit (CFU) manages the Antidumping and Countervailing Duty (AD/CVD) program, which provides oversight and guidance on HSI investigations involving schemes to evade the payment of duties imposed by the United States Government on certain imports. AD/CVD help level the playing field to assist domestic producers in competing against foreign exporters that are engaged in, or benefiting from, the practice of dumping and/or foreign government subsidies.