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What is enclosed space and permit to enter in such space

What is enclosed space?

An Enclosed Space is defined as a space that has the following characteristics, where is an unsafe oxygen level and/or toxic gas or other vapor, Limited openings for entry and exit, Unfavorable natural ventilation
Not designated for continuous worker occupancy

It would include Oil and water tanks, Closed cargo holds, Cofferdams, Duct keels, Void spaces, Pump rooms in Oil tankers and the like.

Works In Cargo And Ballast Tanks

When it is necessary for crew to work in cargo or ballast tanks the Company requirements for Enclosed Spaces Entry must be complied with in all respects. The initial entry must be made by a responsible officer to carry out further testing before allowing the crew to enter the tank. During the time the crew are working in the tank a responsible Officer must be in attendance.

When any cleaning, repairs or maintenance work has been carried out in a cargo or ballast tank, the space must be carefully inspected by a responsible Officer after all work is completed to ensure that all tools, equipment, materials and debris have been removed and that no damage has been caused to coatings and/or fittings.


Permit To Enter

Entry is only permitted when the atmosphere has been proved to contain

Oxygen content 21% by volume

Hydrocarbon vapor concentration less than 1% LEL

No toxic or other contaminants


Masters permission

The Master shall ensure the Chief Engineer or Chief Officer shall complete the checklist of Enclosed Space Entry Permit ....



EEBD shall not be used in place of the SCBA, in an emergency condition.

Closing Procedure: After confirming all is secured and all persons who had been entered the enclosed space are evacuated, the master shall enter the time of closure of permit and retain onboard for onboard filing purpose.

Permits duration of the validity :
The Entry permit should be issued immediately before the work is to be performed. The duration of their validity shall not exceed 24 hrs.



Related Topics

Risk assessment prior entering in an enclosed space

What is enclosed space and what is risk assessment prior entering such space? ....

How to rescue a person from enclosed spaces ? ....

What are the emergency procedures for stowaways? ....






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