WHMIS stands for Workplace Hazardous Materials Information System.   This Health Canada legislation applies to businesses in Ontario, where it is administered by the Ontario Ministry of Labour.

WHMIS provides rules and regulations for identifying, storing, and working with hazardous materials in the workplace.   The three main requirements of WHMIS are:

·         ensuring there are labels on containers of hazardous materials

·         maintaining current copies of Material Safety Data Sheets (MSDS) to provide detailed hazard and precautionary information

·         providing worker education programs to ensure workers understand how to work with hazardous materials in the workplace


Ontario Ministry of Labour WHMIS: http://www.labour.gov.on.ca/english/hs/pubs/whmis/whmis_1.php

CCOHS WHMIS Training: http://www.ccohs.ca/products/courses/whmis_mgr_ont/

Ontario Guide to WHMIS Legislation: https://files.ontario.ca/books/mol_whmis_guide_english.pdf

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