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The OECD activity aims to harmonise the international classification of hazardous chemicals. Classification divides chemical substances and mixtures into different categories, based on their physical properties and health and environmental hazards. Chemicals are then labelled according to category requirements.

The OECD:

• develops or revises proposals for classification criteria, at the request of the UN Sub-Committee of Experts on the Globally Harmonised System (GHS),
• facilitates application of the classification through its works on the assessment of chemicals,
• links through a web Portal (eChemPortal) to national/regional databases where classifications are available for individual chemicals.

News and Publications

• Public availability of national/regional GHS classifications
• Outcome of the Analysis of Classification of Selected Chemicals listed in Annex III of the Rotterdam Convention, ENV/JM/MONO(2010)7, OECD Series on Testing and Assessment No.119
• Other relevant publications in the OECD Series on Testing and Assessment
• The GHS and the Global Partnership:a success story from Rio to Rio

Related topics

• Assessment of chemicals
• eChemPortal