Presently before the Tribunal is the question whether Article 1901(3) of the NAFTA (“Except for Article 2203 (Entry into Force), no provision of any other Chapter of this Agreement shall be construed as imposing obligations on a Party with respect to the Party's antidumping law or countervailing duty law”) bars the submission of Claimants' claims with respect to U.S. antidumping and countervailing duty law to arbitration under Chapter Eleven of the NAFTA (the “Preliminary Question”).