Toolbox Talk

Permit to Work System Awareness

TBT-PTW-006

A permit to work is a formal documented procedure that authorises certain high-risk activities to be carried out under controlled conditions. Permits ensure hazards are identified, controls are in place, and all affected parties are aware of the work. Common permit activities include hot works, confined space entry, excavation, electrical isolation, and working at height. The permit system only works if everyone understands their responsibilities and follows the process properly.

Key Hazards
High-risk work proceeding without adequate safety controls in place
Miscommunication between work teams about active hazards and isolations
Permits not being closed out, leaving incomplete controls in place
Simultaneous conflicting activities creating unforeseen compound hazards
Control Measures
  • Obtain the correct permit type before starting any high-risk activity listed in the site rules.
  • Read the full permit and ensure you understand all conditions and controls before signing.
  • Display the permit at the work location so it is visible to all workers in the area.
  • Brief all members of your team on the permit conditions before commencing the task.
  • Check that all isolations, exclusion zones, and safety equipment are in place before starting work.
  • Monitor compliance with permit conditions throughout the task and stop if conditions change.
  • Hand back and close out the permit with the issuing authority when the work is completed.
  • Never start work under an expired permit — obtain a new one from the authorising person.
  • Report any breach of permit conditions to your supervisor immediately without continuing work.
Remember
  • A permit to work is not just paperwork — it is a safety system that protects your life.
  • Never start a high-risk task without a valid, signed, and displayed permit in place.
  • Read and understand every condition on the permit before you begin any controlled activity.
  • Permits must be closed out properly when work is finished or handed over between shifts.
  • If site conditions change during permitted work, stop and inform the permit issuer.
  • Ignoring permit conditions has been a direct cause of fatal incidents on construction sites.
Applicable Legislation: Health and Safety at Work etc. Act 1974 · Management of Health and Safety at Work Regulations 1999 · CDM Regulations 2015
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