Repair of natural gas leak where gas may still be present. Occupying the space for more than 1 hour continuously. Space contains a spilled hazardous chemical. Repair process will generate hazardous by-products.
Employee is trained in confined space safety.
Employee is wearing appropriate personal protective equipment. Employee has a means of communication to outside the space. Employee has adequate lighting or lighting source. Employee is trained in heat stress safety. Employee has mechanical ventilation in place as needed.