Shipper’s Letter of Instruction (SLI)

A Shipper’s Letter of Instruction (SLI) is a formal document issued by the exporter (shipper) to their freight forwarder or carrier, providing detailed shipping and handling instructions for an international consignment. The SLI serves as a communication tool that ensures the cargo is transported according to the shipper’s requirements and in compliance with applicable regulations.

Key Aspects:

1. Purpose: The SLI conveys the shipper’s specific directions regarding routing, documentation, handling, and other logistics-related needs. It is often used to authorize the forwarder to act as the agent for arranging transportation and preparing necessary export documentation, such as the bill of lading.

2. Contents: Typically, an SLI includes:

   • Shipper and consignee details
   • Description of the goods
   • Quantity, weight, and packaging specifications
   • Preferred shipping method and terms (e.g., Incoterms)
   • Destination and routing instructions
   • Special handling or hazardous cargo instructions
   • Authorization for the forwarder to file export declarations on behalf of the shipper

3. Significance: The SLI helps prevent misunderstandings, reduces errors, and ensures compliance with export regulations. It provides a record of instructions, clarifies responsibilities, and supports efficient logistics operations.

In summary, a Shipper’s Letter of Instruction (SLI) is a crucial shipping document that communicates the exporter’s detailed shipping requirements to the forwarder or carrier, ensuring accurate, compliant, and efficient handling of international shipments.