On September 20, 2021, the Department of Commerce (Commerce) published in the Federal Register amended regulations to improve its administration and enforcement of the antidumping (AD) and countervailing duty (CVD) laws. The AD/CVD laws are intended to provide relief to domestic industries, including businesses, workers, farmers and ranchers, from the injurious effects of unfairly traded imports through the imposition of AD/CVDs. The final rule significantly modifies the agency’s regulations concerning industry support, new shipper reviews, scope inquiries, circumvention inquiries, covered merchandise inquiries, certifications and certain procedures. Aimed at closing loopholes and addressing inefficiencies, these revisions are Commerce’s first overhaul of the AD/CVD regulations in more than 20 years.