This has two general usages with respect to transportation. The more specific meaning is a service or rate basis under which a single carrier undertakes the through transportation of cargo from a shipper’s “door” to the consignee’s “door.” This can be via any mode, or combination of modes, of transportation. The ocean tariff service code “DD” on an EDI message identifies such a movement. The term also is used to generally describe the physical movement of cargo, especially in a shipper-packed container, intact through to the consignee without transfer or re-handling of the cargo within the container, typically under seal unless broken for Customs inspection, whether or not such movement is under a through bill of lading (TBL) or combined rate. See also codes DD, DP, HH, HP, MD, NC, PD, PH and PP and type of service code. This term may also be used to describe cargo insuring conditions which include warehouse-to-warehouse clause, which covers cargo loss or damage from the point where through/continuing transportation begins until it ends at the ultimate destination point (i.e., from shipper’s door to consignees door).