DBMS In subject are No. 23 calls for: Shore based staff sample PTW forms and audit forms during inspections and audits and provide feedback to vessel personnel and follow up with shore management. Senior managers are actively involved in incident investigations where PTW noncompliance was a contributory factor. During ship inspections/internal audits the Permit to Work system should be reviewed to ensure that it is being properly managed, and that permits are actually being used, are correctly completed and are effective.