Paragraph (1) shall not apply with respect to altered merchandise if the administering authority determines that it would be unnecessary to consider the altered merchandise within the scope of the investigation, order, or finding.
After receiving notice under paragraph (1), the Commission may request consultations with the administering authority regarding the inclusion. Upon the request of the Commission, the administering authority shall consult with the Commission and any such consultation shall be completed within 15 days after the date of the request.
If the Commission believes, after consultation under paragraph (2), that a significant injury issue is presented by the proposed inclusion, the Commission may provide written advice to the administering authority as to whether the inclusion would be inconsistent with the affirmative determination of the Commission on which the order or finding is based. If the Commission decides to provide such written advice, it shall promptly notify the administering authority of its intention to do so, and must provide such advice within 60 days after the date of notification under paragraph (1). For purposes of formulating its advice with respect to merchandise completed or assembled in the United States from parts or components produced in a foreign country, the Commission shall consider whether the inclusion of such parts or components taken as a whole would be inconsistent with its prior affirmative determination.
The administering authority shall, to the maximum extent practicable, make the determinations under this section within 300 days from the date of the initiation of a countervailing duty or antidumping circumvention inquiry under this section.