What does a pre-shipment inspection actually check?
The specific checks a standard inspection runs, what it doesn't cover, and how to make sure it's actually independent.
A pre-shipment inspection is a structured check of your goods against an agreed specification, performed after production but before shipping — timed specifically so a problem can still be fixed before it becomes an expensive shipping and returns issue.
What a standard inspection typically checks
- Quantity verification — confirming the shipment matches the ordered quantity.
- Visual and workmanship checks against your specification or an agreed sample.
- Basic function testing, where applicable to the product type.
- Packaging and labelling, including whether shipping marks and any required compliance labelling are correct.
- Measurements and specifications, checked against your written order rather than a general quality impression.
How sampling actually works
Inspectors typically use a recognised statistical sampling method rather than checking every unit — the sample size scales with shipment size, following an internationally recognised standard for this kind of quality sampling. This is standard, accepted practice, not a corner cut for convenience; checking every unit in a large shipment usually isn’t practical or necessary to catch a systemic problem.
What inspection doesn’t cover
A standard visual and functional inspection isn’t the same as certification testing for specific regulatory compliance — safety certification for electronics or children’s products, for example, typically requires separate, specialised testing rather than being caught by a general pre-shipment check. Confirm what compliance testing your specific category needs separately, rather than assuming a passed inspection covers it.
Making sure the inspection is actually independent
The independence of who performs this check matters as much as the checklist itself — an inspection arranged and paid for by the same party who found or sold you the supplier carries an inherent conflict of interest, regardless of how thorough the checklist looks on paper.
What to do with a failed inspection
A failed inspection is a negotiating point, not necessarily a dead end — depending on the severity, options range from rework before shipment, a partial rejection of the affected units, to walking away from the order entirely. Having inspection terms specified in your purchase order in advance makes this conversation far less contentious than negotiating it after the fact.
What’s next
Use the quality-control checklist for what you can check personally alongside formal inspection, or go back to the independence question if you haven’t settled who’s actually performing your inspection.
Frequently asked questions
When should a pre-shipment inspection happen?
Does inspection check 100% of a shipment?
What's the difference between inspection and the quality-control checklist on this site?
Keep planning
- Working with Suppliers from the Canton FairSourcing agents, factory verification, negotiation, samples, payment safety, and how the fair compares to buying through 1688 or Alibaba instead.
- Inspection Company vs Sourcing AgentThe conflict of interest almost no sourcing guide names directly, and what an inspection actually needs to be independent.
- Quality Control Checklist for China SourcingA structured checklist covering specification, function, and finish — built to catch problems before they're expensive.
- Common Canton Fair Sourcing ScamsHow the deposit, sample-swap, and guaranteed-visa schemes actually work mechanically, not just that they exist.