Declaration-Synapse Latest info Latest info DECLARATION-SYNAPSE will be closed on 1st January 2023 From 1st January 2023, it will be compulsory to notify hazardous mixtures through the European Poison Centre Notification Portal (PCN) developed by EC DECLARATION-SYNAPSE will be closed on 1st January 2023 Latest info More information on Chemicals DECLARATION-SYNAPSE will be closed on 1st January 2023 Declaration-Synapse will close in January 2023 DECLARATION-SYNAPSE will be closed on 1st January 2023 More information on Chemicals