An analysis of the relationship between WHMIS certification and holder's knowledge after being certified


  • Min Liao Author
  • BCIT School of Health Sciences, Environmental Health Institution
  • Heacock Helen Supervisor


certificate, certification, knowledge retention, occupational health and safety, WHMIS


Workplace Hazardous Materials Information System (WHMIS) is the Canadian standard for hazard communication. This system consists of hazard classification, cautionary labelling of containers, safety data sheets, as well as worker education and training programs. In British Columbia, WorkSafeBC is the legal authority for occupational health and safety. Employers must provide worker education and training while workers must participate in these learning opportunities as required. Despite these requirements, there is currently no legislation that mandates WHMIS certificate holders to recertify after a period of time. Holders may work decades for the same organization and receive their one and only training session in their careers when they started working. There is a likelihood that information vital to occupational health and safety is gradually forgotten. This research study examined WHMIS knowledge retention of holders upon being certified.


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How to Cite

Liao, M., BCIT School of Health Sciences, Environmental Health, & Helen, H. (2021). An analysis of the relationship between WHMIS certification and holder’s knowledge after being certified. BCIT Environmental Public Health Journal. Retrieved from