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The Hazardous Substances Advisory Committee (HSAC) provides expert advice on how to protect the environment, and human health via the environment, from potentially hazardous substances and articles, including nanomaterials.

HSAC is the successor body to the Advisory Committee on Hazardous Substances (ACHS). ACHS was abolished on 22 July 2012, with the coming into force of the Advisory Committee on Hazardous Substances (Abolition) Order 2012 (Statutory Instrument No 2012/1923).

Terms of reference

Membership

Code of practice

Meetings

An agenda and papers for the meeting will be published here a few days before each meeting.

The 48th HSAC Meeting will take place on 11 March 2026.

Minutes and papers

• (ZIP, 610 KB)
• (ZIP, 781 KB)
• (ZIP, 507 KB)
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• (ZIP, 539 KB)

For minutes of previous meetings including for ACHS and other documents, please see .

Publications

• (PDF, 1020 KB, 21 pages)
• (PDF, 190 KB, 10 pages)
• (PDF, 295 KB, 20 pages)
• (PDF, 263 KB, 15 pages)
• (PDF, 88 KB, 1 page)
• (PDF, 304 KB, 20 pages)
• (PDF, 246 KB, 5 pages)
• (PDF, 633 KB, 8 pages)
• (PDF, 315 KB, 4 pages)
• (PDF, 189 KB, 10 pages)

For earlier publications, please see .