The annual meetings of the Working Party on Nuclear Criticality Safety and its five expert groups took place on 23-27 September 2019 at NEA/OECD headquarters in Paris.
| Date | Time | Agenda |
| Monday, 23 September 2019 | 09:00-13:00 | SG-4 |
| 14:00-18:00 | SG-3 | |
| Tuesday, 24 September 2019 | 09:00-13:00 | SG-2 |
| 14:00-18:00 | SG-7 | |
| Wednesday, 25 September 2019 | 09:00-13:00 | SG-5 |
| 14:00-18:00 | SG-6 | |
| Thursday, 26 September 2019 | 09:00-18:00 | SG-1 |
| Friday, 27 September 2019 | 09:00-18:00 | WPNCS |
Participation in the WPNCS meeting is restricted to WPNCS members.