Shipper Load and Count (SLC)

A bill-of-lading notation indicating the shipper loaded and counted the freight without carrier verification. It isn't a red flag in itself - restricted dock access, dropped trailers, and high volume all make it routine - but it shifts the burden of proof onto the shipper if a shortage is claimed later. Related notations: SLAC (Shipper Load, Stow and Count, the ocean variant), STC (Said to Contain, where the carrier records declared contents without inspecting), and Joint Count, where shipper and carrier verify together and liability is clearer.

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October 16, 2026

Definition

Shipper Load and Count (SLC) is a notation on a bill of lading confirming that the shipper, not the carrier, loaded the trailer and verified its contents. It documents that the driver did not count the freight, accepting the shipment as presented under a shipper-applied seal.

What Is Shipper Load and Count?

When a trailer is loaded at the shipper's facility, the driver typically cannot verify what is inside without unloading it. SLC formalizes this reality. The notation records that the shipper loaded and counted the freight, and that the carrier accepted the shipment based on the shipper's figures and seal integrity. In simple terms, SLC tells everyone downstream that the count on the paperwork came from the shipper's dock, not the driver's inspection.

For suppliers working with retailers like Walmart, Amazon, Target, and Costco, SLC notation carries significant evidentiary weight. It defines what the carrier can dispute later and establishes the baseline against which shortage claims are judged.

Why Shipper Load and Count Matters

SLC protects both parties when used correctly. It confirms the carrier received a sealed, intact trailer, strengthening the shipper's position when product goes missing in transit with the seal unbroken.

It also defines claim dynamics. With SLC on the bill of lading, a carrier has limited grounds to argue a shortage existed at origin, since it accepted the shipper's count without verification.

How Shipper Load and Count Works

  • The shipper loads the trailer, counts and records the contents, and applies a numbered seal before the carrier arrives or departs.

  • The driver acknowledges the SLC notation when signing the bill of lading, accepting responsibility for the sealed trailer without verifying its contents.

  • The trailer moves under seal, and any in-transit inspection or delivery event is documented against the seal number recorded at origin.

  • At delivery, seal integrity is verified. An intact seal at a short delivery supports a claim against the carrier, since the shortage must have occurred in transit.

Common Challenges With Shipper Load and Count

  • Seal documentation gaps where seal numbers are not recorded consistently, weakening the evidence chain that SLC depends on.

  • Notation inconsistencies where SLC appears on some documents but not others, giving carriers room to dispute liability in shortage claims.

  • Misunderstood responsibility where shippers assume SLC guarantees full protection without maintaining accurate load counts at origin.

  • Dispute friction where carriers argue loading irregularities despite SLC, requiring strong internal loading records to rebut.

Shipper Load and Count and Deduction Management

For suppliers to major retailers, SLC discipline connects directly to shortage deduction defense. When a retailer deducts for a shortage, the supplier's ability to prove what actually shipped determines the dispute's outcome. SLC notation, paired with seal records and loading documentation, builds the evidentiary chain that separates in-transit losses from receiving errors.

This is where documentation rigor pays measurable returns. Tools like iNymbus match shortage deductions against bill of lading data automatically, flagging SLC notations and seal records that strengthen each case. Dispute packages go out with the complete origin-to-delivery evidence chain attached, and suppliers recover more of their highest-volume deduction type with proof instead of argument.

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