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UPS Supply Chain Solutions®

Shipper's Letter of Instruction (SLI)

What is a Shipper's Letter of Instruction (SLI)?

A shipping document, generated by the shipper/exporter, that provides transportation and documentation instructions for a freight forwarder or carrier. It also usually authorizes the forwarder to act on behalf of the shipper and to transmit Electronic Export Information (EEI) to the Automated Export System (AES).

Related Terms

Freight Forwarder

Related FAQs

What are freight terms of sale?

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