WHMIS 2015 Compliance Official Deadline Extension

By: Joe McCarthy, Senior Regulatory Affairs Specialist, email

Official notice that the WHMIS 2015 deadline has been extended was published this morning.

Link: For manufacturers/importers

This notice includes a discussion for the proposal to amend the Hazardous Products Regulations (WHMIS 2015) to restore the use of prescribed concentration ranges in Section 3 of an SDS without the need for a HMIRA Claim for Exemption (trade secret) Registration.

The proposed amendments to restore prescribed concentration ranges to the Hazardous Products Regulations (WHMIS 2015) is expected to be published in summer 2017.

Link: For distributors

Original Deadline New Deadline
Importers & Manufacturers June 1, 2017 June 1, 2018
Distributors June 1, 2018 September 1, 2018
Employers December 1 , 2018 No change


The change to compliance deadline also extends the period where either WHMIS 1988 or WHMIS 2015 Labels and Safety Data Sheets may be used.

Trade Secrets claims for a chemical identity or CAS# will still need a HMIRA Claim for Exemption Registration.

Please contact Dell Tech Laboratories for further details on how to amend your existing Canadian GHS SDS to incorporate these new ranges.


Dell Tech has provided professional, confidential consulting services to the chemical specialty industry in Canada, USA, Europe and Asia for the last 35 years.  Contact us today for more information.



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