Why this matters
Air in tanks, pits, and vaults can be short of oxygen or full of gas, with no smell or warning.
What to cover
- Don't enter a space unless you've been trained and have a permit where required.
- Test the air before entry and as the program says.
- Keep an attendant outside at all times.
- Have a rescue plan and equipment ready.
- Never enter to rescue someone without the right equipment.
- Leave at once if you feel unwell or an alarm sounds.
Ask the crew
- Which spaces on this site are confined?
- Who's the attendant?
- What's the rescue plan?
One thing to do today
Identify and mark every confined space on the site.


