Enclosed space entry checklist

Work through it in order at the space itself. Ticks stay in this browser and print with the permit.

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1. Before the permit is raised

The decision point: can the job be done without entering at all?

Alternative to entry considered and documented — inspection camera, drone, or external means.
Risk assessment completed for this specific space and this specific task.
Space identified, isolated and the entry plan agreed with the master or responsible officer.
All connecting lines blanked or locked out; valves secured and tagged.
Space drained, cleaned and, where required, gas-freed with the method recorded.
Adjacent spaces and their contents considered as a source of leakage into the space.

Permit issued by the authorised person, valid for a defined period, and displayed at the entrance.
Names of every person entering listed, with entry and exit times logged by the attendant.
Scope of work stated; hot work assessed and permitted separately if applicable.
Permit conditions understood by all entrants at a toolbox talk held at the space.
Bridge and engine control room informed that entry is taking place.

Meter calibrated, bump-tested and within its service interval before use.
Oxygen 20.9% by volume confirmed.
Flammable vapour not more than 1% LFL.
Toxic gases (H₂S, CO, benzene as relevant to the cargo) below exposure limits.
Readings taken at top, middle and bottom of the space, and in pockets and behind structure.
Results recorded on the permit with time, instrument serial number and tester's name.
Continuous or periodic monitoring arranged for the duration of the entry.

Mechanical ventilation running before and throughout the entry; not stopped during breaks.
Ventilation intake positioned in clean air, away from exhausts and vents.
Access clear, adequately lit with approved lighting, ladders and gratings sound.
Entrance kept clear of obstructions and equipment.

Attendant stationed at the entrance for the whole entry, with no other duty.
Two-way communication tested between entrants and the attendant, and with the bridge.
Rescue harness, lifeline and lifting arrangement rigged and ready at the entrance.
Two sets of breathing apparatus with full cylinders standing by, checked before entry.
Resuscitation equipment, stretcher and first-aid kit at the site.
Rescue team briefed on the plan — including who does not enter.
Personal gas detectors carried by every entrant, switched on and alarming correctly.

Entrants withdraw immediately on any alarm, symptom or loss of communication.
Attendant logs each entry and exit; headcount confirmed at every break.
Permit cancelled and the space secured when work stops or conditions change.
Space closed, isolations restored and re-entry prevented once complete.
Entry, testing records and any lessons filed as evidence in the safety management system.
Enclosed space entry and rescue drill held within the last two months and recorded.