Article 4 (1) of CLP Regulation requires manufacturers, importers and downstream users to classify substances or mixtures in accordance with CLP before placing them on the market. In general, suppliers need to decide on the classification of a chemical substance or a mixture.
Self classification
Self classification is where the decision on classification of a substance or a mixture is taken by the manufacturer, importer or downstream user. Self ‐classification may only be applied in the absence of a harmonized classification, or where a harmonized classification is only available for selected hazards.
Follow the steps below to self-classify a substance or a mixture:
- Collect available information
- Evaluate the adequacy and reliability of the information
- Review of the information against the classification criteria
- Decide on classification
Harmonised Classification
When the decision on the classification of a chemical is taken at the Community level this is called a
Harmonised Classification. This process often concerns the most hazardous substances. These are usually carcinogenic, mutagenic, toxic for reproduction or respiratory sensitisers. The harmonisation of the classifications aims at protecting human health and the environment while enhancing competitiveness and innovation. Approximately, 8000 substances have a harmonised classification under CLP.
Harmonised classifications and labelling is mandatory for the suppliers of respective substances, so that users are better informed about their potential hazardous effects and how best to make use of them safely.
Classification and Labelling Inventory of the European Chemicals Agency (ECHA)
The Classification and Labelling Inventory is a database which contains all available classification and labelling information on notified and registered substances received from manufacturers and importers. It also includes the list of harmonised classifications and the names of harmonised substances translated in all EU languages.
Questions and Answers on Classification
Guidance on classification
More information on the provisions of CLP Regulation can be found in the European Chemicals Agency webpage: