Format de notification aux centres antipoison

The Poison Centres Notification (PCN) format structures the information on hazardous mixtures classified for health or physical hazards. This information has to be submitted to the Member States appointed bodies. The format is XML based and defined by the requirements laid out in Annex VIII to the CLP Regulation.

The information to be submitted includes the full chemical composition, toxicological information, relevant product and mixture details including the intended use (EuPCS), in addition to the label elements such as the unique formula identifier (UFI). The PCN format aims to harmonise and ensure consistency of the information available to poison centres in cases of poisoning incidents in the EU.

Version 1 of the PCN format is compatible with IUCLID, a tool developed at OECD level, which promotes the harmonisation of chemicals data and is available at the link below.

Note that version 1 of the PCN format may undergo further adjustments as a result of:

  • PCN format ‘pilot project’ run by ECHA in conjunction with stakeholders,
  • Any regulatory changes following a workability study contracted by the Commission.

Any updates of the PCN format will be synchronised with the yearly IUCLID format update, published in October.


To help with the IT implementation of this format, the following is available:



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