Assessment of Regulatory Needs (ARN) Reports

15 February 2024

Cefic has just published a position paper on ECHA’s Assessment of Regulatory Needs (ARN) reports (Cefic, 2024).

What is ARN?

ARN is a preliminary step taken by the European Chemical Agency (ECHA) to explore the need for potential regulatory risk management for (groups of) substances. It is an informal, iterative screening of group of substances to help authorities address concerns in an optimal way.

How is grouping done? Is it same as read-across approach?

The groups from ARN are built upon available information and apply a practical approach to prioritise areas of interest based on common attributes like uses, hazards, and chemical structure, which differs from grouping as defined in Annex XI. ARN does not aim to validate read-across and category approaches.