Poison centre notification is one of those obligations that is straightforward in principle and relentless in practice. It is not hard to understand. It is hard to keep on top of, because it attaches to every formulation, in every market, and changes whenever the formulation does. This article is practical guidance, not legal advice.
What PCN and the UFI are, in plain terms
Poison centre notification is the duty to provide information about certain hazardous mixtures to the bodies that handle poisoning enquiries, so that medical responders can act quickly if someone is exposed. The Unique Formula Identifier, or UFI, is a code tied to a specific composition and shown on the label, which links the product to that information. See ECHA's poison centres pages for the authoritative detail, and confirm the GB position with HSE.
Who has to do it, and when
The duties fall on those placing relevant hazardous mixtures on the market, with the specifics depending on the product, its classification and the market it is sold into. Because the exact scope and timing matter and can change, treat this as a prompt to confirm your own position against the source rather than a determination of it.
Why it is so fiddly
- It is per formulation. Each distinct mixture is its own notification, so a broad range multiplies the work.
- It is per market. A product sold into more than one market can carry more than one obligation.
- It is tied to composition. A reformulation, a supplier change or a new variant can require a fresh notification and a new identifier.
- It is exacting. The information has to be structured correctly, which is where much of the time and the errors come from.
Every reformulation triggering fresh notification work?
We connect your composition data to the notification and UFI process, so a change flags what needs updating instead of being discovered late. A short call, no pitch.
Book a technical callWhere the manual work sits
The effort is not in understanding the rule, it is in the mechanics: assembling the correct composition for each mixture, structuring the information as required, generating and managing the identifiers, and keeping all of it aligned when a formulation changes. It is the same product-composition data that drives your customer questionnaires, which is why a single maintained source of truth pays off across both.
Stopping it being a surprise for every new product
The pattern that hurts is treating notification as a step discovered at launch. The pattern that works is wiring it to composition, so that when a formulation is created or changed, the notification and identifier implications are flagged as part of the process rather than found out afterwards. That turns a recurring scramble into a routine step.
UK and EU differences
As with the rest of chemical regulation, the GB and EU positions are maintained separately and can differ. If you place products on both markets, check both, and do not assume a notification in one covers the other. The wider picture is in our UK REACH vs EU REACH comparison.
Frequently asked questions
What is a UFI?
A Unique Formula Identifier, a code linked to the specific composition of a mixture and displayed on the label, used to connect a product to the information held by poison centres. The exact rules on when and how it is required should be confirmed against the primary source. This is practical guidance, not legal advice.
Who has to make a poison centre notification?
Duties fall on those placing certain hazardous mixtures on the market. Whether and when it applies depends on the product, its classification and the market. Confirm your specific obligations with the relevant authority.
Do I need a new UFI when I reformulate?
A change in composition can require a new identifier and an updated notification. Because the identifier is tied to the formulation, changes upstream flow through to it, which is exactly why it catches people out.
Is the UK the same as the EU?
Not necessarily. The GB position can differ from the EU, as with REACH. If you supply both markets, check both regimes.
Sources
The scope, format and timing of poison centre notification and the UFI are set by the authorities below and can change. Confirm what applies to your products against them. This article is practical guidance, not legal advice.