 According to the Charter of the Congress adopted on 2 May 2007 (revised on 15 January 2020) by the Committee of Ministers, the Chamber's membership is based on the principles of balanced geographical distribution, equitable representation of the various types of regional authorities and their political groups, as well as of equitable representation of women and men, whereby at least 30 per cent of the members must belong to the under-represented sex.The Chamber drafts reports, recommendations, resolutions and opinions on issues of concern and presents them to the Standing Committee of the Congress for adoption.The Chamber elects a President from among its members for two years and appoints a Bureau composed of the President and seven Vice-Presidents.