The United Nations has adopted the 11th revision of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), introducing a new hazard class for global warming and major labelling changes. Adopted in December 2024 and effective globally from September 2025, these GHS 11 changes are relatively incremental yet still significant as companies increasingly try to reduce compliance risk and take a more proactive approach to safe and sustainable chemical management. These new updates include:
- Clarified classification rules for aerosols and pressurized chemicals
- New non-animal test methods for skin sensitization
- A new environmental hazard category for chemicals that contribute to global warming
- Streamlined and rationalized precautionary statements to improve label clarity
- New guidance on identifying and communicating risks from simple asphyxiants
Who does this rule apply to?
The changes in GHS Revision 11 apply globally and affect anyone involved in the production, handling, import, export, or regulation of chemicals. Stakeholders include not only chemical manufacturers but also logistics firms, retailers, regulators, and EHS professionals.
Compliance Strategy Recommendations
To adapt to the changes in GHS Revision 11, affected companies should focus attention on the following:
- Classification and Documentation: Facilities should review and update classifications against GHS Revision 11 criteria, including aerosols, climate endpoints, and skin sensitization, as well as update labels and safety data sheets (SDS) to align with the revised hazard and precautionary statements.
- Training Requirements: Facilities are required to provide updated training within the year of the update on these revisions to improve compliance in daily operations. Training should reinforce how to recognize revised hazard statements, understand new climate or asphyxiation risks, and apply safe-handling procedures tied to the updated classifications. Annual refresher training can help ensure employees remain aligned with both regulatory changes and site-specific safety practices.
Questions? We’re here to help.
Stay ahead of compliance deadlines and ensure your facility meets all updated GHS revisions. For support with annual trainings or to discuss any questions or concerns you may have, please contact LeeAnn DelMonte.
References
Globally Harmonized System of Classification and Labelling of Chemicals (Rev.11) (2025, September), UNECE, https://unece.org/transport/documents/2025/09/standards/globally-harmonized-system-classification-and-labelling
