Prepared in conformity with General Assembly resolution 63/127; outlines the progress made by the Secretariat since the last report (A/63/98). Annexes (p. 9-11): 1. Secretariat units bearing primary responsibility for the preparation of Repertory studies on individual Articles of the Charter of the UN -- 2. Status of the Repertory of Practice of UN Organs (July 2009) -- 3. Status of the Repertoire of the Practice of the Security Council (July 2009).