This guide provides:

The guide is intended to assist workplace parties with compliance, but does not cover every situation or answer every question about the legal requirements concerning designated substances in Ontario.

The guide does not replace the Occupational Health and Safety Act (OHSA) and its regulations, and should not be used as or considered legal advice. Health and safety inspectors apply the law based on the facts in the workplace.

In order to understand your legal rights and duties, you must read the official versions of OHSA and the regulations on e-laws.

Unless otherwise specified, the sections referenced throughout this document relate to O. Reg. 490/09 – Designated Substances.