What to do
- Ask your suppliers which of your substances get a new classification and when updated safety data sheets will arrive. Our supplier letter is ready to send.
- Update your chemical register as the new safety data sheets arrive.
- Review your workplace risk assessment for any substance newly classified as an endocrine disruptor for human health (EUH380 or EUH381). The Chemical Agents Directive requires you to keep it up to date.
- The other three new classes are environmental hazards. Check whether they affect your environmental permits and waste handling.
- If your company supplies mixtures: mixtures first placed on the market since 1 May 2026 must already be classified for the new classes. Mixtures that were on the market before then must be reclassified by 1 May 2028.
What changes
- Delegated Regulation (EU) 2023/707 added four hazard classes to the CLP Regulation: endocrine disruption for human health, endocrine disruption for the environment, persistent, bioaccumulative and toxic (PBT) or very persistent and very bioaccumulative (vPvB), and persistent, mobile and toxic (PMT) or very persistent and very mobile (vPvM).
- Each class has its own hazard statements: EUH380 and EUH381 for endocrine disruption in humans, EUH430 and EUH431 for endocrine disruption in the environment, EUH440 and EUH441 for PBT and vPvB, and EUH450 and EUH451 for PMT and vPvM.
- Substances placed on the market from 1 May 2025 already had to be classified this way. Substances that were on the market before that date have until 1 November 2026.
- Mixtures follow later: new mixtures from 1 May 2026, mixtures already on the market by 1 May 2028.
- When new hazard information becomes available, REACH requires suppliers to update the safety data sheet without delay and send it to every customer they supplied in the previous 12 months.
Who it affects
Manufacturers, importers and formulators must classify and label. If you use chemicals at your site, you receive the result: new hazard statements on safety data sheets and labels.
Key dates
- Delegated Regulation (EU) 2023/707 enters into force
- Substances placed on the market from this date must be classified for the new hazard classes
- Mixtures placed on the market from this date must be classified for the new hazard classes
- Substances already on the market must be reclassified
- Mixtures already on the market must be reclassified
Official sources
This summary simplifies the law. The text published in the Official Journal of the European Union is binding. For directives, check your national law.