The Court of Arbitration for Sport, which ruled on a Sports-related arbitration on 5 January 2017, found that Guyanese cyclist Alanzo Greaves was guilty of an ADRV in accordance with Article 2.1 of the World Anti-Doping Code, during his participation in the Tour of Guyana 5 Stage Cycle Road Race in November 2015.

The International Olympic Committee (IOC) has now published its respective Anti-Doping Rules (Rules) for the 2020 Winter Youth Olympic Games in Lausanne (to be held in January 2020) and for the 2020 Summer Olympic Games in Tokyo (to be held in July and August 2020).

At their request, the World Anti-Doping Agency (WADA) posts the Anti-Doping Rules and accompanying circular letters applicable to both events:

The IOC, as a Signatory to the World Anti-Doping Code (Code), has established and adopted these Rules in accordance with the Code and International Standards; most notably, the 2020 List of Prohibited Substances and Methods that will be in force during both the Lausanne and Tokyo Games.

The Rules will cover the period from the opening of the Lausanne and Tokyo Olympic Villages until the day of the closing ceremonies of both Games (from 5 to 22 January 2020 and from 14 July to 9 August 2020 respectively).

During this period, all athletes will be subject to doping controls initiated by the International Testing Agency (ITA) – to which the IOC has delegated some of its responsibilities related to the implementation of the doping control process during the Games.

Source: https://www.wada-ama.org/en/media/news/2019-07/wada-posts-iocs-anti-doping-rules-for-lausanne-and-tokyo-2020