The nomination procedure for the Arbitral Tribunal in commercial arbitration is one of the crucial points in the arbitral procedure. Parties have to have in mind the provisions of the New York Convention regarding the setting aside of an award in case of a failure during the nomination procedure of the tribunal. Besides from the famous Dutco case on multi-party arbitrations and their nomination procedures have received highest interest within the international arbitral world. As the thesis will comparatively show, all major arbitral institutions have updated their Rules, countries have even rendered new legislation with respect to the nomination procedure for multiple parties. The thesis does not deal however with the different types of and reasons for multiple parties, commonly known as joined arbitration.