4. If a complaining Party wishes to argue that a matter has nullified or impaired benefits, the terms of reference shall so indicate.
5. If a disputing Party wishes the panel to make findings as to the degree of adverse trade effects on any Party of any measure found not to conform with the obligations of the Agreement or to have caused nullification or impairment in the sense of Annex 2004, the terms of reference shall so indicate.
Article 2013: Third Party Participation
A Party that is not a disputing Party, on delivery of a written notice to the disputing Parties and to its Section of the Secretariat, shall be entitled to attend all hearings, to make written and oral submissions to the panel and to receive written submissions of the disputing Parties.
Article 2014: Role of Experts
At the request of a disputing Party, or on its own initiative, the panel may seek information and technical advice from any person or body that it deems appropriate, provided that the disputing Parties so agree and subject to such terms and conditions as such Parties may agree.
Article 2015: Scientific Review Boards
1. At the request of a disputing Party or, unless the disputing Parties disapprove, on its own initiative, the panel may request a written report of a scientific review board on any factual issue concerning environmental, health, safety or other scientific matters raised by a disputing Party in a proceeding, subject to such terms and conditions as such Parties may agree.
2. The board shall be selected by the panel from among highly qualified, independent experts in the scientific matters, after consultations with the disputing Parties and the scientific bodies set out in the Model Rules of Procedure established pursuant to Article 2012(1).
3. The participating Parties shall be provided: