Hope you are doing well! We should insert the maintenance record tag shown as the picture 1 into the packing bag during re-pack the life preserver. For example: PN 63600-series, CMM25-64-02. And we should also insert another record tag required by CSN shown as picture 2. The information is almost the same. So we want to know whether the record tag (picture 1) is mandatory.Looking forward to your reply! Have a nice day!