Tehran Convention
| COP 6 - PrepCom 7 | 16–20 September 2019 | Baku, Azerbaijan |
| COP 6 - PrepCom 6 | 24–28 September 2018 | Baku, Azerbaijan |
| COP 6 - PrepCom 5 | 13–17 November 2017 | Geneva, Switzerland |
| COP 6 - PrepCom 4 | 7–10 November 2016 | Geneva, Switzerland |
| COP 6 - PrepCom 3 | 10–11 November 2015 | Baku, Azerbaijan |
| COP 6 - PrepCom 2 | 31 May–3 June 2015 | Baku, Azerbaijan |
| COP 6 - PrepCom 1 | 24–27 November 2014 | Baku, Azerbaijan |