Section effective, except as otherwise provided, on the date on which the WTO Agreement enters into force with respect to the United States [Jan. 1, 1995], and applicable with respect to investigations, reviews, and inquiries initiated and petitions filed under specified provisions of this chapter after such date, see section 291 of Pub. L. 103–465, set out as an Effective Date of 1994 Amendment note under section 1671 of this title.