The guide · CLP Annex VIII
How poison centres use your notification
Once a PCN dossier is submitted, its job stops being administrative. It exists so that when someone calls about a product — a nurse, a factory supervisor, someone standing in their own kitchen — the person answering can look up an exact composition instead of guessing from a label.
Everything else on this site is about getting a notification submitted correctly: the right composition, the right UFI, the right member states, an accepted validation report. This page is about what happens after all of that — who actually reads the dossier, when, and why the accuracy of what is in it matters more than whether the paperwork around it was tidy.
The emergency call
Poison centres across the EU take somewhere over 600,000 calls a year between them — roughly 1,700 a day, and by some counts around half of those involve a child who has got into something they should not have. A good number of calls come from physicians and nurses on behalf of a patient rather than from a member of the public directly. Most calls are quick: a description of what happened, sometimes a product name off a label, sometimes a UFI if whoever is calling thought to read it out. The person answering is not looking at the product in front of them. They are working from whatever the caller can tell them, plus whatever they can pull up in the time it takes to stay on the line.
How the UFI is used at the other end
The sixteen characters printed after "UFI:" on the label exist for exactly this moment. Whoever is on the phone enters the code into the same notification system the dossier was submitted into, and — if the submission went through correctly — it returns the exact formulation behind that code: every component above the reporting threshold, the concentration range it falls in, and whatever toxicological information was declared for it. That lookup is what moves the response from "this is probably a household cleaner, treat for that" to something built on the actual mixture, in roughly the time it takes to read a code off a label.
Where the UFI does not resolve — because the wrong code ended up on the label, or the notification behind it was never actually submitted — that lookup returns nothing, and the operator falls back to whatever else is on hand: a safety data sheet if one is available, a product name, a best guess from the symptoms described.
Why composition accuracy matters more than paperwork
A dossier that is submitted on time, formatted correctly and accepted without warnings can still be wrong in the one way that matters here: if the composition it declares is not the composition actually in the product, an operator working from it has no way to know that in the moment. That is a different kind of error to a late filing or a missing field — both of those get caught, by the portal's own validation, by an audit, or by whoever prepared the dossier. A wrong composition on file gets caught, if it gets caught at all, during the one situation the whole system exists to handle. That is the practical reason a reformulation, a supplier change or a substituted ingredient has to trigger a check on whether the notified composition still matches what is in the product — not because an auditor is likely to ask, but because the alternative is finding out the hard way. See when a composition change requires a new UFI.
What poison centres do not do
A few things are worth ruling out, because they get assumed. A poison centre is not the body checking whether a mixture was notified in the first place — that is enforcement, and it sits with each member state's own market surveillance authority, not with the appointed body handling emergency calls; what that enforcement actually looks like is covered separately. A poison centre does not go looking for products either: it is a reactive service, built around calls that come in, not an inspector checking labels against a database. And the composition data it holds is not published or used beyond what an emergency response needs — the same confidentiality that keeps a formulation from a competitor also governs how a poison centre handles it, as covered on our confidentiality page. A poison centre, in other words, is neither a regulator nor a directory. It is the one part of this whole system that only exists because, sometimes, someone needs an answer immediately.
Next step
Make sure the data behind your UFI is right
We review composition before it is notified, not after, so the dossier a poison centre reads back is the one that matches the product on the shelf.