The List of classified substances in Malaysia are made based on Part II of the Occupational Safety and Health (Classification, Labelling and Safety Data Sheet of Hazardous Chemicals) Regulations (CLASS Regulation) 2013, which is also listed in Part I of the Industry Code of Practice on Chemicals Classification and Hazard Communication. The list contains substance name, CAS number, classification and relevant labelling elements of the corresponding substances and is issued and regulated by the Department of Occupational Safety and Health (DOSH) of Malaysia.