Permit to Work (PTW)

PTW systems are required for high-risk activities including: hot work (welding, cutting, grinding near combustibles), work at height (above 2m), confined space entry, electrical work on live or recently live equipment, breaking into pressurised systems, roof access, and excavation. A PTW document typically specifies: work description and location, hazard identification and risk assessment, required precautions (isolation, barricading, gas testing, PPE), emergency procedures, validity period (usually one shift), authorising person (competent authority), and sign-off for completion/cancellation. PTW systems align with ISO 45001 and are referenced in OSHA, HSE (UK), and most multinational corporate safety standards. Digital PTW systems are replacing paper-based systems for better tracking and audit trail.

PTW systems prevent accidents during high-risk maintenance and construction activities. In Bangladesh, where contractor safety culture varies significantly, a robust PTW system is one of the most effective safety interventions a facility manager can implement. Many MNC tenants require PTW systems as a condition of occupancy.