Permit To Work
Permit To Work (PTW) systems are used in hazardous industries to request, review, authorise, document and most importantly deconflict tasks to be carried out by frontline workers.
PTW is a core element of ISSOW systems that along with Risk Assessment and Isolation Planning, enable As Low As Reasonably Practicable (ALARP) reduction of unsafe activities in non-trivial work environments. PTW adherence is essential to achieve Process Safety Management.