Quality Control (QC)
The process of inspecting products during and after manufacturing to ensure they meet specifications. QC includes incoming material inspection, in-process checks, and final random sampling before shipment.
Quality Control (QC) is the systematic process of verifying that manufactured products meet your specifications and quality standards. In the context of importing from overseas factories, QC typically involves three stages: incoming material inspection (verifying raw materials meet specs), in-process inspection (checking quality during production), and final inspection (random sampling of finished goods before shipment).
For most DTC importers, the most critical QC touchpoint is the pre-shipment inspection (PSI), conducted when production is 80-100% complete. This involves a third-party inspector visiting the factory, randomly sampling products according to AQL (Acceptable Quality Level) standards, and checking them against your specifications and a detailed checklist. Common checks include dimensions, weight, color matching, functionality testing, labeling accuracy, packaging quality, and drop/stress tests.
The cost of QC inspections is one of the best investments you can make as an importer. A standard third-party inspection costs $200-$400 per day (companies like QIMA, SGS, Bureau Veritas, and AsiaInspection offer this service). Compare this to the cost of receiving a container of defective products: lost sales, customer returns, negative reviews, and potential safety liability. Many experienced importers budget 1-2% of order value for QC costs.
Why it matters
Never skip pre-shipment inspection, even with trusted suppliers. Quality can drift between orders. Budget $200-$400 per inspection through services like QIMA or SGS -- it is the cheapest insurance in importing.
Practical Tip
Never skip pre-shipment inspection, even with trusted suppliers. Quality can drift between orders. Budget $200-$400 per inspection through services like QIMA or SGS -- it is the cheapest insurance in importing.
You'll hear this when…
When setting requirements
“"Our spec sheet references the Quality Control (QC) threshold — all units must meet or exceed this before shipment."”
When reviewing an inspection report
“"The third-party inspector flagged two units that failed the Quality Control (QC) check."”
When negotiating with a supplier
“"What is your factory's standard Quality Control (QC) rejection rate, and how do you handle non-conforming units?"”
Related Terms
Acceptable Quality Level
AQLA statistical sampling system that defines the maximum acceptable defect rate in a production batch. AQL tables specify how many units to inspect and how many defects are allowed based on batch size.
First Article Inspection
FAIA thorough inspection of the very first production units off the line before mass production begins. FAI verifies that the factory can produce your product correctly and catches problems before they multiply across thousands of units.
Pre-Shipment Inspection
PSIA quality inspection conducted when production is 80-100% complete, using AQL sampling to determine whether the batch meets quality standards before it ships. The last line of defense before goods leave the factory.
ISO 9001
The international standard for Quality Management Systems (QMS). An ISO 9001 certified factory has documented processes for consistent quality, but certification alone does not guarantee product quality.
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