Committee for Risk Assessment

The Committee for Risk Assessment (RAC) prepares the opinions of ECHA related to the risks of substances to human health and the environment in the following REACH and CLP processes. The final decisions are taken by the European Commission.

Harmonised Classification and Labelling

RAC examines the proposals for harmonised classification and labelling and gives an opinion on the proposed harmonised classification of substances as carcinogenic, mutagenic, toxic for reproduction or as a respiratory sensitiser, as well as other effects on a case-by-case basis.  


The Committee evaluates whether the proposed restriction on manufacture, placing on the market or use of a substance is appropriate in reducing the risk to human health and the environment. This includes the assessment of comments submitted by third parties.


RAC assesses the risk of a substance arising from the uses of a substance when an application for authorisation is submitted. This includes an assessment of the appropriateness and effectiveness of the risk management measures as described in the authorisation application, and if relevant, of the risks of possible alternatives. Third party contributions linked to the application will also be assessed.

Occupational Exposure Limits (OELs) 

The Committee supports the European Commission by giving scientific opinions on occupational exposure limits. It has taken over this responsibility from the Commission’s Scientific Committee on Occupational Exposure Limits (SCOEL).

Drinking Water

Starting in 2026, the Committee will evaluate the safety of certain substances used in materials that come into contact with drinking water. When an application is made to ECHA to use these substances in the manufacture of such materials, RAC will assess their potential risks.  RAC’s evaluation will include how these substances are used, their potential to transfer into the drinking water, and their toxicological properties. Additionally, any comments by third parties on the application will be considered.

ECHA's Executive Director's requests

RAC gives an opinion on request from the Executive Director of ECHA relating to risks to human health and the environment on any other aspects concerning the safety of substances on their own, in preparations or in articles. 

The Committee also provides scientific support to improve the cooperation between the Community, its Member States, international organisations and third countries relating to the safety of substances, as well as active participation in technical assistance and capacity building activities on the sound management of chemicals in developing countries.


The members of RAC are appointed by ECHA's Management Board based on candidates nominated by the Members States for a renewable term of three years.