AICIS finalises Industrial Chemicals Categorisation Guidelines changes effective September 2026 (high-hazard list update, Part 6.5.2 salts correction, definition update)

AICIS published finalised changes to the Industrial Chemicals Categorisation Guidelines that will apply from September 2026. The update includes maintenance of the 'chemicals with high hazards for categorisation' list (293 new entries, 122 updated entries, one CAS correction for bis(pentachlorophenyl) carbonate to CAS 7497-08-7, and removals of 1,1,1-trichloroethane (CAS 71-55-6) and fluoro(triphenyl)stannane (CAS 379-52-5)). It also updates Part 6.5.2 (developmental toxicity information requirement) by adding five benzotriazole-related chemicals and clarifying that introducers must check introductions are not salts (correcting earlier erroneous wording that referenced esters), with stated exception criteria for certain salts (e.g., polymer/MW criteria). In addition, AICIS replaces two definitions with a single definition of 'chemical identity holder', linked to reporting obligations under Chapter 3 of the Industrial Chemicals (General) Rules. Compliance teams should review categorisation processes and any internal chemical identity holder/reporting workflows ahead of the September 2026 start date.