Abstract
The establishment of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) is one of the global initiatives to promote effective chemical hazard communication worldwide. Ultimately, the GHS aims to enhance safe use of chemicals, as well as to facilitate chemical trading across national borders. Countries that are now adopting GHS into their respective national legislations include the EU, US, Japan, Korea, Taiwan, and Malaysia. Nonetheless, challenges exist that might impede GHS implementation worldwide. These challenges have been identified and are discussed in this paper, namely, (i) adoption of different versions of the GHS document, (ii) adoption of building blocks, (iii) list of classified chemicals, (iv) different chemical mixture classification throughout the supply chain, and (v) the definition of GHS implementation. The challenges discussed in this paper are not to discourage countries from implementing GHS but, rather, to serve as input for the relevant entities to further strengthen GHS implementation worldwide.
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