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🚢 Warehouse-to-warehouse clause is a provision found in marine cargo insurance policies that defines the duration of coverage as beginning when goods leave the warehouse at the point of origin and continuing until they are delivered to the final warehouse at the destination — encompassing the entire transit chain, including intermediate storage, transshipment, and any customary delays in between. The clause effectively gives the cargo owner a single, seamless layer of transit protection rather than requiring separate policies for each leg of a multi-modal journey.

📐 Operationally, the clause traces coverage through every stage of the supply chain: from the moment goods are first moved for loading at the origin warehouse, through land carriage to the port, ocean or air transit, unloading, customs clearance, and final overland delivery to the consignee's warehouse. Standard market wordings — such as the Institute Cargo Clauses (A), (B), and (C) — incorporate the warehouse-to-warehouse principle but impose outer time limits (typically 60 days after discharge from the ocean vessel) to prevent indefinite coverage if goods languish at a port or intermediate storage facility. Underwriters may adjust these time limits or attach endorsements for extended storage when the cargo owner's supply chain involves known delays, such as customs holds or free-trade zone processing.

🔗 Without this clause, gaps in coverage could arise every time cargo changes hands or modes of transport — leaving the insured exposed during the most vulnerable transition points where theft, damage, and mishandling are statistically more likely. For marine insurers and brokers structuring international trade placements, the warehouse-to-warehouse clause is foundational; it simplifies the coverage architecture and reduces disputes about whether a loss occurred within the policy period. As global supply chains grow longer and more complex, with multiple freight forwarders, consolidation hubs, and last-mile carriers involved, the clause's comprehensive reach remains one of the most practical and client-valued features of modern cargo insurance programs.

Related concepts:

• Definition:Marine cargo insurance
• Definition:Institute Cargo Clauses
• Definition:Transit insurance
• Definition:Inland marine insurance
• Definition:Bill of lading
• Definition:General average