The Globally Harmonized System (GHS) is an international recommendation for classifying chemicals and communicating their hazards. GHS provides a unified approach to classifying chemicals and labeling, which helps protect human health and the environment by standardizing hazard information and safety measures.
It was developed by the United Nations to ensure consistent and clear communication of chemical hazards across borders. However, these objectives have not been fully realized in practice because each country adopts the GHS according to its own regulatory framework.
For more details, visit the UN GHS Overview.
The GHS comprises three primary components:
Hazard Classification: Systematic criteria for classifying chemicals based on their physical, health, and environmental hazards. Do you want to learn about Hazard Classification? Click here for more information.
GHS is crucial for Chemical Regulatory Affairs because it streamlines regulatory compliance across different countries by standardizing hazard communication. This reduces discrepancies between national regulations, simplifies international trade, and enhances safety by ensuring that hazard information is clear and consistent.
Training in GHS is crucial for understanding each country's specific regulatory framework, as GHS serves as the foundation for the hazard classification and communication systems employed worldwide.
GHS mandates that chemical labels and Safety Data Sheet (SDS) follow a specific format to ensure consistency. Labels must feature standardized hazard pictograms and information that is easily understood. SDS must follow a 16-section format, including sections on hazard identification, composition, and first-aid measures, among others. This uniformity enhances clarity and ensures that users have essential information readily available.

The GHS framework is designed to be compatible with other international standards and regulations. It aligns with various regional and national regulations, such as:
Argentina | Resolution N° 801/2015 (SRT)
Australia | Work Health and Safety (WHS)
Brazil | NBR 14725
Canada | WHMIS
Chile | Supreme Decree nº 57 de 2019
China | GB 17519 & GB 30000 & GB 15258
Colombia | Decree 1496 de 2018 & Resolution 773 de 2021
Costa Rica | RTCR 478:2015 & RTCR 481:2015
Ecuador | Executive Decreee No. 255 & INEN 2266:2013 & INEN 2288
European Union | REACH & CLP
Mexico | NOM-018-STPS-2015
Peru | Supreme Decree N° 005-2026-MINAM
United Kingdom | UK REACH & GB CLP Regulation
USA | OSHA HCS 2024
and more....
For in-depth information on GHS implementation and compliance, visit the following resources:
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