When the work is completed, the contractor, or employee operating hazardous work places operating safety conditions or constant with the same condition and then sign and return the hazardous work permit per person
When the job is finished, contractors or employees in a hazardous workplace. provides a safe condition or conditions are the same, then sign and return the work permit to the risk. Control
When the task is completed to contractors or employees working at risk do working place conditions have a safe or the original sign and return ใบอนุญาตทำงานเสี่ยง hazard control the