EU CLP Regulation Hazard Classification System and Self-Classification Requirements
ENFORCEMENT TIMELINE
In force since January 20, 2009 (continuously updated in line with GHS revisions)
Overview
This card focuses on the hazard classification system and self-classification requirements for chemical substances and mixtures under the EU CLP Regulation (Regulation (EC) No 1272/2008).
CLP transposes the UN GHS (Globally Harmonised System of Classification and Labelling of Chemicals) into EU law, requiring chemicals to be classified across three major categories — physical hazards (such as explosiveness, flammability, and oxidizing properties), health hazards (such as acute toxicity, skin corrosion, carcinogenicity, and reproductive toxicity), and environmental hazards (such as aquatic toxicity and hazards to the ozone layer) — and a wide range of specific hazard classes within them. Companies manufacturing or importing chemical substances or mixtures in the EU are responsible for correctly identifying and self-classifying the relevant hazard categories, based on available test data and literature.
Enforcement Timeline
January 20, 2009: The CLP Regulation ((EC) No 1272/2008) enters into force, beginning the transition from the earlier Dangerous Substances Directive (DSD) and Dangerous Preparations Directive (DPD).
June 1, 2015: CLP classification and labelling requirements become fully applicable to mixtures (preparations).
2020–2024: Ongoing Adaptations to Technical Progress (ATPs) align CLP with the latest UN GHS revisions (8th and 9th revised editions).
November 2026: The transition period for new classification and labelling requirements under an amending CLP regulation ends, and updated self-classification criteria become mandatory.
Related Regulations / Topics
Business Impact
Companies supplying chemical substances and products (mixtures) to the EU market must carry out rigorous self-classification based on the latest GHS classification criteria and EU-specific hazard categories (as amended by ATPs), using the physical, chemical, and toxicological data they hold. Classification results must be reflected immediately in Sections 2, 11, and 12 of the Safety Data Sheet (SDS), and companies must notify the relevant classification and labelling data to ECHA's Classification and Labelling Inventory (C&L Inventory) within the specified timeframe.
Where a physical hazard or toxicity classification is upgraded to a higher category, the substance is immediately flagged as a candidate for restriction (Annex XVII) or authorization (Annex XIV) under the REACH Regulation. Chemical and materials manufacturers need to continuously update their hazard-data collection and evaluation systems, promptly communicate relevant information to downstream users, and maintain thorough documentation of the basis for their classifications.