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A Permit to Work (PTW) system is a formal authorization process used in high-risk industries—construction, oil & gas, power plants, and manufacturing—to control hazardous activities through documented hazard identification and risk assessment. It ensures tasks like hot work, confined space entry, electrical maintenance, and work at height are performed only after isolation/LOTO, gas testing, PPE verification, and competency checks are completed. The permit acts as a legal and operational control, defining scope of work, responsible persons, validity period, and emergency precautions, preventing simultaneous operations conflicts. By integrating toolbox talks, supervision, and communication between issuer and receiver, PTW minimizes human error and unsafe conditions. It also provides an auditable safety record supporting compliance with regulations such as the Factories Act, OSHA standards, and HSE guidelines. Ultimately, an effective PTW system is not paperwork—it is a frontline incident prevention barrier protecting workers, equipment, and business continuity.