Confined Space Emergency Response

Toolbox Talk Record

Ref: TBT-EMG-009  |  Issue: 1  |  Date: March 2026
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What?

Why?

Rescuer deathsUntrained rescuers entering confined spaces to save colleagues account for over half of all confined space fatalities.
Speed criticalBrain damage from oxygen deprivation begins within 4 minutes. Pre-planned rescue saves critical seconds.
Legal requirementThe Confined Spaces Regulations 1997 ACoP requires suitable and sufficient rescue arrangements before any entry.
Do Don't
  • Prepare a written rescue plan specific to each confined space before entry.
  • Stage rescue equipment including tripod, winch, and BA at the entry point.
  • Attach retrieval lines to entrants in vertical spaces for non-entry rescue.
  • Train all confined space team members in the rescue plan and equipment use.
  • Call 999 immediately when a confined space emergency is declared.
  • Use the top man to raise the alarm and coordinate rescue from outside.
  • Practise rescue drills regularly so the team can respond under pressure.
  • Ensure rescuers wear breathing apparatus before entering a contaminated space.
  • Evacuate immediately if you feel dizzy, nauseous, or the gas alarm activates.
  • Debrief after every rescue drill and real incident to identify improvements.
  • DON'T enter a confined space to rescue someone without BA and proper training.
  • DON'T allow the top man to leave the entry point to attempt a rescue.
  • DON'T delay calling 999; activate emergency services at the earliest opportunity.
  • DON'T begin confined space entry without rescue equipment staged and ready.
  • DON'T assume the atmosphere is safe because the casualty is still conscious.
  • DON'T attempt rescue without first assessing what caused the emergency.
  • DON'T remove the retrieval line to give the entrant more freedom of movement.
  • DON'T skip rescue drills because the work seems low risk or routine.
  • DON'T send multiple untrained rescuers into a space; this causes more casualties.
  • DON'T re-enter the space after a gas alarm without confirming it is safe.

See also: Emergency Rescue Plans | Confined Space Entry Procedures