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What is PTW and why does it matter?

PTW (Permit To Work) is the final safety control checkpoint. If JSA answers “What are the hazards?”, PTW answers “Are we fully ready to begin?”.

A valid PTW ensures:

• the work area is safe and controlled;
• hazards have been assessed;
• control measures are in place;
• workers are competent and equipped;
• tools, machinery, and scaffolding meet standards;
• PPE is complete and appropriate.

The PM’s responsibility in PTW approval

The Project Manager bears full responsibility when signing a PTW. Therefore, a PM must:

• never approve PTW based on schedule pressure;
• ensure PTW reflects the real conditions on site;
• verify technical–people–environmental readiness;
• stop the work immediately if PTW conditions change.

INDUSVINA's 8-step PTW workflow

3D PTW Workflow — INDUSVINA Standard

1. Work request initiated.
2. Hazards assessed (JSA).
3. Worksite prepared.
4. Technical readiness checked.
5. Toolbox meeting & task briefing.
6. PTW approval.
7. Supervision during execution.
8. Completion & PTW closure.

PTW Template — 8 mandatory elements

1. Job information  
2. Scope of work  
3. Key hazards  
4. Mandatory safety conditions  
5. Workers & supervisors involved  
6. PTW validity period  
7. Issuer – Checker – Approver  
8. Closure conditions  

Every PTW — in Vietnam or internationally — must include these 8 items.