Confined Space Entry Marking — Ontario OHSA
Regulation O.Reg 632/05 · Province of Ontario
§The Law
O.Reg 632/05 — Regulation O.Reg 632/05
“Confined spaces must be identified with warning signs at all entry points to alert workers of the hazard and require a confined space entry permit.”
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Confined spaces (tanks, vaults, large pipes) need "DANGER — CONFINED SPACE" signs at every entry. No entry without a proper permit and rescue plan.
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Specific Requirements
DANGER CONFINED SPACE sign at all entries
Entry permit system required
Atmospheric testing required before entry
Rescue plan in place before entry
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📚Sources & Authority
Every claim on this page is backed by official government legislation and verified industry sources. Last verified: March 2026.
🏛 Official Government Sources
Ontario Building Code — O. Reg. 332/12
Ontario.ca · March 2026
The Ontario Building Code covers room identification, exit signage, accessibility markers, and building identification requirements.
Ontario Occupational Health and Safety Act
Ontario.ca · March 2026
OHSA requires workplace safety signs including emergency assembly points, confined space warnings, and hazard identification.
All sources are official government publications or recognized industry authorities. Links verified March 2026. If you find a broken link, let us know.
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Shop Property SignsOr call (289) 228-7021Regulation Quick Facts
- Regulation
- O.Reg 632/05
- Jurisdiction
- 🏛 Province of Ontario
- Category
- Property & Building Code
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