What’s the Difference?
- Confined Space – This is any enclosed or partially enclosed space that isn’t meant for people to be in for long periods and has limited ways to get in and out. Think tanks, reservoirs, lift stations, manholes, excavations, crawl spaces, and even attics.
- Hazardous Confined Space – This is a confined space that could be dangerous for someone entering because:
- How it’s designed or built
- The materials or substances inside
- The type of work being done
- Any other conditions that could create a hazard
How to Figure Out if a Space is Hazardous
1. Identify the Space
First, determine if the area meets the criteria for a confined space or a hazardous confined space using the definitions above.
2. Conduct a Risk Assessment
A competent person (someone trained and experienced in these assessments) should check for potential hazards, including:
- Air quality issues (oxygen levels should be between 19.5% and 23%, no toxic gases).
- Engulfment risks (things like water, sand, or grain that could trap someone).
- Other safety hazards (electrical, mechanical, or anything else that could be dangerous).
3. Control the Hazards
Once hazards are identified, the Hierarchy of Controls should be used to reduce, control, or eliminate risks:
- Find a way to do the job without entering the space (if possible).
- Make modifications so it’s safer to enter and exit.
- Use proper personal protective equipment (PPE) to keep workers safe.
4. If It’s Hazardous, Use an Entry Permit System
For hazardous confined spaces, a written entry permit is required. This should include:
- The location and description of the space.
- Names of workers authorized to enter and the reason for entry.
- The type of work being done.
- Any hazards and the control measures in place.
- How long the permit is valid.
The signed permit must be available at the site while work is happening.
5. Have a Standby Worker on Duty
A trained and qualified standby worker must stay at the entrance of the hazardous confined space the entire time work is being done. This person needs to know:
- Confined space work procedures
- Entry permit requirements
- Emergency and rescue procedures
Why This Matters
Following these steps helps keep everyone safe and ensures compliance with Manitoba’s workplace safety laws. The goal is simple: make sure every worker goes home safe at the end of the day.
