Southern African Development Community ARTICLE 18 SETTLEMENT OF DISPUTES Disputes arising from the interpretation or application of this Protocol, which cannot be settled amicably, shall be referred to the Tribunal. ARTICLE 19 AMENDMENTS 1. An amendment to this Protocol shall be adopted by a decision of three quarters of the State Parties. 2. Subject to sub-article (3) of this Article, a proposal for the amendment of this Protocol shall be submitted to the Executive Secretary by any State Party for preliminary consideration by the Council. 3. The Executive Secretary shall submit a proposal for amendment to the Council under paragraph 2 of this Article after: a) all Member States have been duly notified of the proposal; and b) three months have elapsed since the notification. ARTICLE 20 SIGNATURE This Protocol shall be signed by duly authorised representatives of Member States. ARTICLE 21 RATIFICATION This Protocol shall be ratified by the Signatory States in accordance with their constitutional procedures. Protocol on Control of Fire Arms, Ammunition and other related materials 13