2014 – 2023
| Geneva, 19-29.9.2023 | see UNECE Website WP.15/AC.1 Working documents |
| Berne, 20-24.3 2023 | see UNECE Website WP.15/AC.1 Working documents |
| Geneva, 12-16.9.2022 | see UNECE Website WP.15/AC.1 Working documents |
| Bern, 14-18.3 2022 | see UNECE Website WP.15/AC.1 Working documents |
| Geneva, 21.09-1.10.2021 | see UNECE Website WP.15/AC.1 Working documents |
| Berne, 15-19.03.2021 | see UNECE Website WP.15/AC.1 Working documents |
| Berne, 10-11.09.2020 and Geneva, 14-18.09.2020 |
see UNECE Website WP.15/AC.1 Working documents 2020 |
| Geneva, 17-27.09.2019 | see UNECE Website WP.15/AC.1 Working documents 2019 |
| Berne, 18-22.03.2019 | see UNECE Website WP.15/AC.1 Working documents 2019 |
| Geneva, 17-21.09.2018 | see UNECE Website WP.15/AC.1 Working documents 2018 |
| Berne, 12-16.03.2018 | see UNECE Website WP.15/AC.1 Working documents 2018 |
| Geneva, 19-29.09.2017 | see UNECE Website WP.15/AC.1 Working documents 2017 |
| Berne, 13-17.03.2017 | see UNECE Website WP.15/AC.1 Working documents 2017 |
| Geneva, 19.-23.09.2016 | see UNECE Website WP.15/AC.1 Working documents 2016 |
| Berne, 14-18.03.2016 | see UNECE Website WP.15/AC.1 Working documents 2016 |
| Geneva, 15-25.09.2015 | see UNECE Website WP.15/AC.1 Working documents 2015 |
| Berne, 23-27.03.2015 | see UNECE Website WP.15/AC.1 Working documents 2015 |
| Geneva, 15-19.09.2014 | see UNECE Website WP.15/AC.1 Working documents 2014 |
| Berne, 17-21.03.2014 | see UNECE Website WP.15/AC.1 Working documents 2014 |