When inspecting the seal on the trailer, what document should be used to verify the...

Seal verification is a control step at the dock door. The expected seal number is provided on the shipment’s electronic or paper Advance Shipping Notice (ASN). CLT key activities covering “Perform dispatch, routing, and tracking operations” and “Receive products” include confirming that identified load integrity controls (like seal numbers) match the pre-advice before breaking the seal. This check helps detect potential tampering, loss, or substitution during transit and ensures the receiving team captures exceptions immediately. While a carrier freight bill may reference shipment details, the ASN is the planned shipment-level pre-advice used operationally to verify what should arrive (including seal). Delivery receipts are signed at the end of unloading; they are not the document of record for pre-unload seal confirmation.

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