Rank: Forum user 
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Im having discussions with various departments in regards to PTW.
Some use the PTW system as access authorisation not just a lock off system.
My question is , How long should a permit be open for?
Would appreciate if anyone could send me copies of PTW policies/documentation to compare please
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Rank: Super forum user
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The max duration of a permit should be one working day or for the duration of the shift. This then prevents any confusion at shift handover as to what is locked off / opened up for access.
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Rank: Forum user
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Normally, the person issuing the permit and the person recieving the permit should be the persons closing the permit. Best practice would be that no permit remain open if either of those people leave site.
Where work has to continue (e.g. work takes longer than one shift) it is a simple matter of ceasing work until then next shift on can raise another permit (going through the same reviews and discussions).
If work cannot be ceased, management should arrange an overlap of attendance of permit issuers.
Isolation certificates can be used for periods where things are locked off for longer than the original work takes (e.g. waiting for a part should not keep a permit open, but may justify an isolation certificate).
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Rank: Super forum user
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Some people use permits to control contractors...which I am guessing it the controlling access bit you mention. In general they should only be open for the length of a shift or as suggested above, the length of time the supervision is present.
The permit can be suspended if the work is not completed i.e. awaiting parts. HSG 250 would be your reference if you need to check the wording.
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