In AD/CVD investigations, we determine whether a U.S. industry is materially injured or is threatened with material injury, or whether the establishment of an industry is materially retarded, by reason of dumped or subsidized imports. We also review existing antidumping and countervailing duty orders every five years to determine whether an order can be revoked without resulting in continued or recurrent injury to a domestic industry. In addition, we have sole responsibility to conduct investigations under section 201 of the Trade Act of 1974 to determine if an article is being imported into the United States in such increased quantities as to be a substantial cause of serious injury, or threat of serious injury, to the domestic industry producing an article like or directly competitive with the imported article.