The 25th meeting of the General Conference on Weights and Measures (Conférence Générale des Poids et Mesures, CGPM) took place in Versailles from 18 to 20 November 2014, successfully bringing together the delegates of the governments of the Member States with observers from the Associates of the CGPM. The President of the French Académie des Sciences, Professor Philippe Taquet, chaired the meeting, which included presentations from the CIPM President, BIPM Director, the Presidents of the CIPM Consultative Committees, three international organizations, and a number of invited speakers. The CGPM adopted five resolutions addressing scientific and institutional matters, including the future redefinition of the International System of Units, the SI.