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Have your say on revisions to the Categorisation Guidelines for 2027
Our consultation on revisions to the 2027 Categorisation Guidelines is now open for public comment until 23 November 2026.
We’re holding a public consultation on the revisions to the Industrial Chemicals Categorisation Guidelines for 2027.
What to expect in the revised Categorisation Guidelines
The next annual release of the Industrial Chemicals Categorisation Guidelines (Guidelines) will include updates to acceptable test methods for demonstrating a chemical’s hazard characteristics and the list of chemicals with high hazards for categorisation (list). As part of these changes, we propose to:
- update the acceptable test guidelines in appendix 8.4 of the Guidelines
- add one new information source to the list
- remove one information source from the list.
Changes to the list of 'list of chemicals with high hazards for categorisation’
For information only, routine updates to the list will include:
- adding 286 entries
- updating 548 existing entries
- correcting the CAS numbers for 4 entries.
We will also make editorial changes to the Guidelines to improve clarity, consistency and overall formatting.
Now open for comment until 23 November 2026
We're seeking your feedback on these revisions to the Guidelines for 2027 until 23 November 2026. We will announce the final changes next year and these will come into effect from 1 September 2027.
Published date