It was a 37-year interval between the 6th Congress and the 7th Congress. The Central Committee and its apparatus was weakened greatly under Kim Jong-il, with several offices remaining unfilled. Beginning in 2005 he took several steps to revitalize the party, appointing senior officials to new posts. Pak Nam Gi was appointed head of the Planning and Finance Department, and Jang Song-thaek was appointed head of the Administrative Department. Overseeing all security matters, Jang was indirectly restored to his duties and responsibilities as head of the Organization and Guidance Department. The 3rd Conference of Representatives (held in September 2010) renewed the composition of the Central Committee; however, the power to give it a new term is held by the party congress.