Olympic Order in exceptional circumstances. Traditionally, the IOC bestows the Olympic Order upon the chief national organiser(s) at the closing ceremony of each respective Olympic Games. The insignia of the Olympic Order is in the form of a "collar" (or chain), in Gold, Silver or Bronze according to grade; the front of the chain depicts the five rings of the Olympic Movement, flanked on either side by "kotinos" emblem (olive wreath). A lapel badge, in the form of the five rings in Gold, Silver and Bronze according to grade, is presented to recipients to wear as appropriate. Nadia Comăneci is the only
Olympic Games session following a celebration of the Olympic Games. During such revisions, sports can be excluded or included in the programme on the basis of a two-thirds majority vote of the members of the IOC. There are recognised sports that have never been on an Olympic programme in any capacity, including chess and surfing. In October and November 2004, the IOC established an Olympic Programme Commission, which was tasked with reviewing the sports on the Olympic programme and all non-Olympic recognised sports. The goal was to apply a systematic approach to establishing the Olympic programme for each celebration of the Games.