It is important to make sure that different jobs being carried out at the same time do not create danger for each other, even if one of the jobs does not require a PTW. Permit Issuers must ensure they understand what other work is going on (or is planned), and must take this into account when reviewing Risk Predictions, agreeing safe way of working and issuing PTWs. Daily Operational Reviews provide a useful forum in which daily activities and PTW issuance can be discussed.