Chemicals
CLP Regulation EU: Classification, Labelling and Poison Centre Notification
CLP is the EU's hazard-classification and labelling regulation — separate from REACH, and the one that actually reaches a much wider set of sellers than substance registration ever does, because it covers any hazardous mixture, not just registered substances above a tonnage threshold. Cleaning products, adhesives, inks and home fragrance all fall inside it.
CLP vs REACH — Not the Same Regulation
- REACH: registration, authorisation and restriction of substances
- CLP (this page): classification, labelling and packaging of hazards
- Shared ground: both ECHA-administered, CLP data feeds REACH's safety data sheets
- Genuinely different obligations — one does not satisfy the other
Quick answer: CLP (Regulation (EC) No 1272/2008) is the EU's classification, labelling and packaging regulation for hazardous substances and mixtures — hazard pictograms, signal words, hazard and precautionary statements — aligning EU law with the UN's Globally Harmonised System. It's a separate regulation from REACH, though both are ECHA-administered and CLP's classification data feeds directly into REACH's safety data sheets. CLP carries two distinct notification duties that are easy to conflate: a substance-level Classification & Labelling Notification to ECHA's C&L Inventory, and a mixture-level Poison Centre Notification for hazardous mixtures sold for consumer or professional use.
Why This Regulation Reaches So Many Ordinary Products
Hazard Classification Isn't Just for Industrial Chemicals
CLP tends to get mentally filed under "industrial chemicals" because the classification criteria themselves read like a chemistry reference — flammability categories, aquatic toxicity, skin corrosion thresholds. But the regulation applies to any substance or mixture that meets a hazard classification, regardless of who buys it or what it's called on the shelf. A household drain cleaner, a scented candle wax melt, a strong all-purpose adhesive, or a printer ink cartridge can all meet a CLP hazard classification the same way an industrial solvent does — the classification is about the chemistry, not the marketing category.
This is exactly why CLP gets missed by sellers focused on consumer-product regimes like GPSR or CE marking: those regulations don't flag hazard classification as their concern, because it genuinely isn't their concern — it's CLP's, running in parallel and independently triggered by the product's actual chemical properties.
Core Duties
What CLP Actually Requires
Classification
Determining which hazard classes and categories a substance or mixture falls into, based on its actual properties — the analytical step everything else builds on.
Labelling
Hazard pictograms, signal words ("Danger" or "Warning"), and hazard/precautionary statements displayed on the product label, matched to the classification determined above.
Packaging
Physical packaging requirements for hazardous products — child-resistant fastenings and tactile warnings for certain hazard classes, among other specifics.
Two Notifications, Not One
C&L Notification vs Poison Centre Notification
The single most common source of confusion in CLP compliance — these are genuinely separate duties, at different levels, to different systems.
| C&L Notification | Poison Centre Notification (PCN) | |
|---|---|---|
| Legal basis | CLP Articles 39-42 | CLP Annex VIII / Article 45, added by Regulation 2017/542 |
| Level | Substance | Mixture |
| Goes to | ECHA's C&L Inventory | National/EU appointed poison centre bodies via ECHA's PCN portal |
| Timing | Within one month of first placing the substance on the market | Before placing a hazardous mixture on the market |
| Who needs it | Substance manufacturers/importers | Anyone placing a hazardous mixture on the market for consumer or professional use |
UFI
The 16-Character Code Most Sellers Miss
The Unique Formula Identifier ties a physical product's label directly to its Poison Centre Notification record — and it has its own separate mandatory date.
What it does
A UFI generated through ECHA's UFI Generator links the label on a hazardous mixture to its specific PCN submission, so a poison centre handling a real emergency can pull the exact formulation instantly rather than searching by product name.
When it's needed
PCN has applied to hazardous mixtures for consumer and professional use since 1 January 2021, and to industrial use since 1 January 2024 — mandatory UFI-on-label became required for newly classified mixtures from 1 January 2025.
Real Scenario
A Pattern Worth Checking Your Own Catalogue Against
The cleaning-product seller who did GPSR and CE work but stopped there
A common pattern: a seller launching a cleaning or detergent product does the GPSR risk-assessment work and checks whether CE marking applies, treats that as "compliance done," and never separately checks CLP. A hazardous cleaning mixture needs its own classification, label pictograms, and — separately — a Poison Centre Notification with a UFI code, none of which GPSR or CE marking cover. This gap shows up specifically in cosmetics-adjacent categories (cleaning products, home fragrance, adhesives) where sellers reasonably assume their existing compliance work already covers hazard labelling.
Cost & Evidence
What to Budget For, and What to Keep on File
Classification and testing
Determining a mixture's classification correctly can require lab testing where the hazard profile isn't already established from known ingredient data — the cost driver most sellers underestimate, since it's easy to assume classification is a paperwork exercise rather than an analytical one.
Evidence to hold
Your classification rationale, the C&L Notification confirmation, and — where PCN applies — your UFI code and PCN submission record. All three are what a market surveillance check or a real poison-centre inquiry would actually ask to see.
FAQ
Common Questions About CLP
What is the CLP regulation EU sellers need to know about?
Regulation (EC) No 1272/2008 — the EU's classification, labelling and packaging law for hazardous substances and mixtures, aligning with the UN's Globally Harmonised System. It sets hazard pictograms, signal words and statements, separate from REACH's substance-registration duties.
What are the CLP labelling requirements, at minimum?
A classified product needs the correct hazard pictogram(s), a signal word ("Danger" or "Warning" depending on severity), and the matching hazard and precautionary statements on its label — all derived from the product's actual CLP classification, not a generic hazard-label template.
Is CLP classification the same as REACH registration?
No — CLP classification determines a substance or mixture's hazard profile and labelling; REACH registration is a separate administrative duty tied to tonnage thresholds. A product can need CLP classification and labelling without triggering full REACH registration, and vice versa.
What is UFI and poison centre notification, and do I need both?
They're linked, not separate choices — if your hazardous mixture needs Poison Centre Notification, it also needs a UFI code generated for that specific formulation and printed on the label, since the UFI is what ties the physical product back to its PCN record.
Does CLP poison centre notification apply to cleaning products?
Yes, if the product is classified as hazardous — cleaning and detergent products are explicitly within scope, alongside adhesives, inks and home fragrance, which is exactly why this cluster of cosmetics-adjacent categories is where the CLP gap most often gets missed.
Where the Facts Come From
Sources for This Page
Regulation (EC) No 1272/2008 (Tier 1, EUR-Lex) is the core legal basis; the Poison Centre Notification duty was added by Regulation (EU) 2017/542, amending CLP Annex VIII. The exact mandatory date for UFI-on-label (stated here as 1 January 2025 for newly classified mixtures) should be cross-checked against the amending regulation's current text before relying on it for a specific compliance deadline, since this page has not independently verified that date against the primary text.
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