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Topic
CLP (Classification, Labelling and Packaging) is Regulation EC 1272/2008, the EU's implementation of the UN Globally Harmonised System (GHS). It governs how substances and mixtures are classified for hazard, how they are labelled and how they are packaged. UK CLP runs in parallel post-Brexit.
Quick answer
The CLP Regulation (Regulation EC 1272/2008) is the EU law that implements the UN Globally Harmonised System (GHS) for chemicals. It governs how substances and mixtures are classified for physical, health and environmental hazards, what must appear on the label (pictograms, signal word, H and P statements), how they are packaged and, for mixtures, the UFI code and Poison Centre Notification (PCN). UK CLP runs in parallel post-Brexit.
See CLP workflows in WorldoverHow this connects to Worldover
Keeping SDS, REACH and CLP current across a growing substance master?
Worldover holds the substance, mixture, SDS and label as one live record so REACH, CLP and multi-market SDS regenerate the moment the underlying data changes.
See AI ERP for chemicalsA substance or mixture is classified against the hazard classes in Annex I of CLP: physical (e.g. flammable, oxidising), health (e.g. acute toxicity, skin sensitisation, carcinogenicity) and environmental (e.g. aquatic toxicity). For mixtures, classification uses bridging principles, additivity formulas and cut-off values to derive the hazard from the components.
A CLP-compliant label carries the product identifier, supplier identity, nominal quantity, hazard pictograms (GHS01 to GHS09), signal word (Danger or Warning), hazard statements (H-codes), precautionary statements (P-codes) and any supplementary information. Tactile warnings and child-resistant fastenings are required for certain hazard classes.
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1 of 3 · EU CPNP
Are your regulatory filings complete and current for every product you sell (FDA listings, CPNP notifications, PIFs)?
Since 2021, mixtures classified for health or physical hazards placed on the EU market for consumer or professional use must carry a Unique Formula Identifier (UFI) on the label, and the formulation must be notified to the appointed poison centre in each Member State via the harmonised Poison Centre Notification (PCN) portal.
Worldover for this
Worldover classifies mixtures, generates compliant labels and SDSs in every required language and keeps UFI codes, PCN submissions and poison-centre notifications synced.
See CLP in WorldoverThe 20th and 21st Adaptations to Technical Progress (ATPs) introduced new hazard classes covering endocrine disruptors and persistent substances (PMT, vPvM) in 2023, with phased transition periods running through 2026 to 2028. Any platform you rely on for CLP must track these dates per substance and per mixture.
CLP changes trigger relabelling requirements, SDS updates, and in some cases reformulation, across every product that contains the affected substance. The work compounds quickly when a single classification touches dozens of mixtures and markets.
Worldover keeps every formulation tagged against the live CLP Annex VI. When a classification changes, affected SDS documents are flagged for update, Willow generates revised labels and hazard statements for review, and downstream notifications such as PCN are queued automatically.
CLP goes wrong when the classification on the label, the classification in the safety data sheet and the classification in the poison centre notification are maintained separately. Doing it once and publishing everywhere is the whole game: CLP labelling software produces the label, SDS authoring software produces the sheet, and both read the same mixture classification.
For the wider picture across REACH, CLP and GHS, see chemical compliance software.
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