Formal Procedures and Permit to Work system

Formal Procedures are usually being raised for repeated works. Formal Procedures are a part of PTW system.


Permit to Work (PTW) is a formal written system used to control certain types of work that are potentially hazardous. PTW is a document which specifies the work to be done and the precautions to be taken. PTW form an essential part of Safe Systems of Work (SSOW) for many activities. They allow work to start only after safe procedures have been defined and they provide a clear record that all foreseeable hazards have been considered. A permit is needed when works can only be carried out if normal safeguards are dropped or when new hazards are introduced by the work.


The purpose of the BST PTW system is to provide safe performance against a specific range of potentially hazardous tasks.


PTW requires that before conducting any job the following steps should be taken:

1) Work scope definition;

2) Hazard identification and Risk Assessment;

3) Establishing control measures to eliminate hazards or mitigate the risk;

4) Linking the work to other associated work permits or simultaneous operations;

5) Authorization by the responsible person(s);

6) Communicating above information to all involved in the work;

7) Ensuring adequate control over the return to normal operations.


PTW system tasks are divided into one of the following categories:


1) Permit for hazardous area;

2) Flame permit;

3) Permit for non-hazardous area;

4) Formal procedure.


Black Sea Terminal Management and Supervision carry out audits of individual tasks covering by PTW on a regular basis. As well related employees carry out regular internal review of the findings of permit to work audits to ensure that any critical failings in the system, or its manner of implementation, have been identified and appropriate actions have been taken.

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