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305-BZF-01-IGOT © 2025, Workplace Safety & Prevention Services (WSPS)
1 877 494 WSPS (9777) | 905 614 1400 | WSPS.CA
MLITSD Resources
Current occupational exposure limits for Ontario workplaces under Regulation 833
Ontario Regulation 833
Ontario Regulation 860
Workplace Hazardous Materials Information System – A guide to the legislation
Other Resources
Occupational Illness Exposures (Occupational Health Clinics for Ontario Workers)
WHMIS (Canadian Centre for Occupational Health and Safety – CCOHS)
WHMIS.org – provided through the collaboration of Health Canada, the regulatory jurisdictions across
Canada, and CCOHS
Contact Information
If you have additional questions about this campaign, please get in touch with WSPS (1 877 494 9777).
You can reach the MLITSD Health and Safety Contact Centre as follows:
Email – webohs@ontario.ca
Phone – Toll-free: 1 877 202 0008/TTY: 1 855 653 9260
Website – https://www.ontario.ca/page/ministry-labour-immigration-training-skills-development
© 2025, Workplace Safety & Prevention Services. All rights reserved.
The information contained in this reference material is distributed as a guide only. It is generally current to the best of WSPS's
knowledge as at the revision date, having been compiled from sources believed to be reliable and to represent the best current
opinion on the subject. No warranty, guarantee, or representation is made by WSPS as to the absolute correctness or sufficiency
of any representation contained in this reference material. WSPS assumes no responsibility in connection therewith; nor can it be
assumed that all acceptable safety measures are contained in this reference material, or that other or additional measures may not
be required or exceptional conditions or circumstances. Under no circumstances shall WSPS, its affiliates, or any of its respective
partners, officers, directors, employees, agents, or representatives be liable for any damages, whether direct, indirect, special, or
consequential damages or lost revenues, lost profits, or otherwise, arising from or in connection with this document.
Publication date: April 2025
WSPS.CA
