SUBCONTRACTOR Construction/Line Management PTW Approver.2. SUBCONTRACTOR HSE PTW Approver. Each Permit Approver will verify that PTW contains all the required information, ithas been properly filled, and it identifies all of the appropriate hazards and controlmeasures and signs the PTW if satisfied. Permit approver shall visit worksite to verify actual site conditions and to verify thatall HSE precautions and controls has been implemented prior signing the PTW.