y proceeding regarding a class or kind of merchandise of a free trade (as defined in section 516A(f)(10) of the Tariff Act of 1930), as determined by the administering authority, any court of the United States, upon the filing of an appropriate pleading, may declare the rights and other 0 Document hosted at http://www.jdsupra.com/post/documentViewer.aspx?fid=f8dbdeb4-782c-4998-aa79-f10e394f951e-P