The 52nd sessions of the UNFCCC Subsidiary Body for Implementation (SBI) and Subsidiary Body for Scientific and Technological Advice (SBSTA) were originally expected to convene in Bonn, Germany, from 1-11 June 2020. 

On 1 April 2020, the Secretariat announced that, due to the COVID-19 pandemic, the 26th session of the Conference of the Parties (COP 26), which was scheduled to take place in November 2020, would be postponed. The SB meetings were also postponed from June to October 2020.

Subsequently, on 23 June 2020, the Bureau decided to postpone the SB meetings until 2021.

In mid April 2021, the Bureau decided the 2021 session of the Subsidiary Body for Scientific and Technological Advice (May–June) and the 2021 session of the Subsidiary Body for Implementation (May–June) would be held virtually over a three-week period, from 31 May to 17 June 2021. Work will be organized informally, and no decision will be taken until the Parties can meet in person again. 

dates: 31 May – 17 June 2021
location: virtual
contact: UNFCCC Secretariat
www: https://unfccc.int/process-and-meetings/conferences/may-june-2021-climate-change-conference-sessions-of-the-subsidiary-bodies
https://unfccc.int/sites/default/files/resource/notification_to_parties_and_observer_states_may_june_%202021_cc_conference%20.pdf