Hard hat legislation on Ontario construction sites
Reviewed by Julie Gunn, Head of Services, SALUS Safety
The question, as asked: what is the legislation in ontario for hard hats on a construction site?
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Published by SALUSOntario Construction Site Head Protection Requirements ======================================================
This document outlines the legal requirements and regulations in Ontario for mandatory hard hat use and head protection on construction worksites, as per occupational health and safety legislation.
Legal Requirements and Regulations
Occupational Exposure Limits
- Ontario has established Occupational Exposure Limits (OELs) for various substances that may be present on construction sites. These limits are designed to protect workers from the harmful effects of exposure to these substances.
Exposure Controls
- Engineering controls should be implemented to ensure adequate ventilation, especially in confined areas. All national and local regulations must be observed.
- Emergency eyewash fountains and safety showers should be readily available in areas where potential exposure exists.
Personal Protective Equipment (PPE)
- In situations where sufficient ventilation is not available, respiratory protection should be used.
- Wear protective gloves.
- Wear protective clothing.
- Wear protective goggles.
- Use a face shield.
Specific Substances and Exposure Limits
The following table outlines the Ontario OELs for specific substances that may be encountered on construction sites:
| Substance | OEL TWA (mg/m3\) |
|---|---|
| Limestone | 10 mg/m3 (inhalable) |
| Calcium sulfate dihydrate | 10 mg/m3 (inhalable) |
| Magnesium oxide (MgO) | 10 mg/m3 (inhalable) |
| Kaolin | 2 mg/m3 (containing no Asbestos and \<1% Crystalline silica-respirable) |
| Calcium oxide | 2 mg/m3 |
| Particulates not otherwise classified (PNOC) | 10 mg/m3 (inhalable) 3 mg/m3 (respirable) |
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