New IMO enclosed space entry requirements
Here (MSC.581(110), adopted 27 June 2025). This builds on A.1050(27) and SOLAS III/13 — but the practical impact onboard is very real: more control, more evidence, fewer “we thought it was safe” moments.
Key changes to align onboard procedures and equipment:
Personal gas detection now means 5-gas: O₂, CO, H₂S, LEL, CO₂
→ Upgrade/replace detectors; update calibration and inventory records.
Enclosed Space Register is no longer optional in practice
→ Maintain a register of all enclosed, connected, and adjacent spaces + hazards + inspection/test frequency.
CO₂ limit before entry: ≤ 0.5% (5,000 ppm) in connected/adjacent spaces
→ Add CO₂ criteria to permits; verify before AND during entry.
Clear SAFE / UNSAFE signage at every opening
→ Post green/red tags after testing; keep status updated throughout the job.
Shore personnel interface requires joint RA + briefing
→ Add a contractor interface step: joint risk assessment, comms plan, and permit sign-off.
Enclosed Space Emergency Response must be ready and drilled
→ Issue/maintain an enclosed space ERP, run drills, file evidence onboard.
Rescue equipment must cover Testing / Protection / Recovery
→ Organize inventories and checks under these three categories (detectors, SCBA/PPE, recovery gear).
EEBD is escape-only
→ Remove any procedure that allows EEBD-assisted entry or rescue.
Every entrant carries a calibrated personal 5-gas detector
→ Add to PPE checklist + permit; verify calibration and current bump test.
Leadership & empowerment: Stop Work Authority
→ Reinforce that any crew member can stop an unsafe entry — and document it in briefings/procedures.
If your SMS hasn’t been mapped against MSC.581(110) yet, start with 3 quick wins: permits + register + detector readiness. The rest becomes much easier once the basics are locked in. ✅
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