Ontario · R.R.O. 1990, Reg. 833

CONTROL OF EXPOSURE TO BIOLOGICAL OR CHEMICAL AGENTS

Under the Occupational Health and Safety Act

Current version date April 20, 2026 · official source text · watch this law (RSS)

Employment & Workplace

Change history

Ontario · AmendedDate recorded April 20, 2026

Respirator approval rules updated to recognize CSA Group certification alongside NIOSH

Starting mid-2026, respirators provided to workers can be approved by the CSA Group (CSA) as an alternative to NIOSH approval, not just by NIOSH or a qualified-opinion-backed third party. The amendment adds CSA as a r…

R.R.O. 1990, Reg. 833Employment & WorkplaceConstruction & Real EstateHealth Care+8 / −0 lines