September 2019 – Article 6.3 of the Paris Agreement lays down that the use of internationally transferred mitigation outcomes is voluntary and that it must be authorized by participating Parties. Similarly, Article 6.4 in conjunction with para. 37 (a) of the Paris Decision subjects participation in the new emission reduction mechanism to the authorization of Parties. A Party can also decide through specific authorization that non-state actors can participate.
Building on the experience with mechanisms under the Kyoto Protocol, a new briefing note re-examines an earlier assessment – completed prior to the 24th session of the Conference of the Parties (COP24) in December 2018 – on the different types of host country approvals necessary for a transaction under Article 6.2 and Article 6.4 Paris Agreement (PA).