Say this
- A confined space is any enclosed space where the air can be bad, oxygen can run low, or you can be buried. Tanks, manholes, pits, silos and pipes all count.
- You can't see, smell or feel low oxygen. Only the gas detector tells us the air is safe, so we test before entry and keep a detector on the team inside.
- No permit, no entry. The permit must be posted at the entrance and must match the job you are doing. If the job changes, stop and get the permit updated.
- Your name tag goes on the board at the entrance when you go in, and comes off when you come out. That is how we know who is inside.
- The ventilation fan stays on the whole time you are inside. If it stops, come out.
- If your detector alarms, you feel dizzy or something feels wrong, get out at once and tell the attendant. Don't stop to finish the job.
- If someone collapses inside, do not go in after them. Raise the alarm, call the rescue team and use the winch and lifeline from outside.
Ask the crew
- What are the three things that make a space a confined space?
- Who is our attendant today, and what will they do if you stop answering?
- Your detector alarms while you are working. What do you do?
- Why must you never climb in to help someone who has collapsed?
Show them
- The posted entry permit and the gas readings written on it.
- The name board at the entrance and how to use it.
- The tripod, winch and harness, and how the lifeline clips on.
Sign-off
| Name | Company | Signature |
|---|---|---|
Sources
- Technical Advisory on Working Safely in Confined Spaces, WSH Council.
- Workplace Safety and Health (Confined Spaces) Regulations 2009, Singapore Statutes Online.
This is practical guidance, not legal advice. Laws and codes of practice change; always check the current official text and your site's own procedures.



