Encourages States parties to the UN human rights instruments to establish quota distribution systems by geographical region for the election of the members of the treaty bodies; recommends, when establishing the quota for each geographical region in each treaty body, the introduction of flexible procedures that encompass the following criteria: (a) each of the 5 regional groups established by the General Assembly must be assigned a quota of the membership of each treaty body in equivalent proportion to the number of States parties to the instrument that it represents; (b) there must be provision for periodic revisions that reflect the relative changes in the geographical distribution of States parties; (c) automatic periodic revisions should be envisaged in order to avoid amending the text of the instrument when the quotas are revised.