Renew WHMIS Certificate

Do You Need to Renew a WHMIS Certificate?

WHMIS certificates do not have a legally mandated expiration date in Canada. However, many employers require workers to renew or refresh their WHMIS training regularly to ensure safety knowledge stays current and compliant with workplace policies.

In practice, WHMIS renewal is often required when workplace conditions change or when employers set internal training schedules.

How Often Should WHMIS Training Be Renewed?

Most employers require WHMIS refresher training every 1 to 3 years. This helps ensure workers remain familiar with:

• Updated hazard classifications and pictograms
• Changes to Safety Data Sheets (SDSs)
• New workplace chemicals or controlled products
• Updated safe handling and emergency procedures

Even if you completed WHMIS training in the past, refresher training is often required to meet employer expectations and pass workplace inspections.

When Is WHMIS Refresher Training Required?

Employers may require WHMIS renewal when:

• You start a new job or move to a new role
• New hazardous products are introduced
• Workplace processes or safety procedures change
• Your employer enforces periodic training updates

Renewing your WHMIS training ensures you stay informed and helps employers meet their occupational health and safety obligations.