Made-in-China products are regularly shipped to Amazon FBA warehouses worldwide. Before goods leave the factory, a third-party pre-shipment inspection can check whether the inspected lot matches the approved product specification, FBA shipment plan, packaging requirements, and supporting documents.

FBA-Specific Inspection Requirements

FNSKU Barcode Verification

Amazon may use an Amazon barcode, such as an FNSKU, or an eligible manufacturer barcode, depending on the SKU, account settings, and product eligibility. When an Amazon barcode is required, the FNSKU is the unit-level identifier that we compare with the approved product and shipment data.^[2][3]

Before barcode verification begins, our team confirms the approved barcode type, SKU list, and reference file. Where a product has multiple visible codes, we identify the code that Amazon should scan and note any other code that must be covered, removed, or rendered unscannable under the approved preparation plan.

For every FNSKU, UPC, EAN, carton barcode, or QR code included in the agreed barcode-verification scope, UTS requires a 100% scan success rate and a 100% match with the approved record. A code that fails to decode, duplicates another code, is missing, or does not match the approved record is recorded as a defect.

Barcode and QR-code verification is handled separately from general AQL quality sampling. When barcode verification is included, our team scans all relevant units or cartons in the agreed lot; a lower sampling rate is not used as the acceptance basis for barcode readability.

1. We confirm the approved barcode type and approved data file for each SKU.
2. We scan every relevant code in the agreed lot.
3. We compare every decoded value with the approved shipment, SKU, or traceability record.
4. We record non-decoding, duplicate, missing, damaged, and mismatched codes as defects.
5. We rescan corrected codes before the applicable lot or carton is closed.

Weak contrast, incomplete thermal transfer, wrinkles, contamination, damaged quiet zones, incorrect code placement, or label damage can prevent reliable scanning. GS1 General Specifications provide the core framework for barcode data, placement, and print-quality controls.^[4]

For mixed-SKU FBA shipments, our team also checks segregation and label-control practices. During a supplier assessment or factory audit, we may review approved artwork, print-file version control, printer-maintenance records, label storage, segregation of obsolete labels, and corrective-action records.

Further reading: UTS Amazon FBA Compliance Inspection, UTS Sample Evaluation and Barcode Check.

Box Labels and Shipping Labels

Each carton in the approved FBA shipment workflow must use the correct, unique FBA box ID label. For small-parcel delivery, Amazon also requires a carrier label on each box. Amazon states that FBA box labels must not be photocopied, reused, or modified for additional cartons.^[5][6]

Amazon supports 3 1/3×4-inch box labels. Where thermal printing is selected in the box and pallet label workflow, Amazon also supports a 4×6-inch format.^[6]

UTS offers professional container loading supervision with box label verification. Our team checks carton identification and loading traceability before the shipment leaves the factory or designated loading site.

Label Check Point	Inspection Requirement
Label uniqueness	Each carton must carry the label generated for that individual carton in the approved shipment plan.
Label placement	The label should be placed on a flat carton surface and should not cross a seam, opening, edge, or fold line.
Barcode visibility	The barcode must remain visible and must not be covered by tape, straps, stretch film, or other labels.
Label condition	The label must not be folded, curled, stained, torn, or otherwise damaged.
Shipment data	The shipment ID, carton number, destination, and other printed information must match the approved shipment record.

Our team checks label placement as well as label content.

• The label should remain flat and fully attached to the carton surface.
• The printed barcode should remain clean and unobstructed.
• The FBA box ID label and carrier label should not cover one another.
• The carton number and shipment ID should match the approved shipment plan.

Representative carton-label evidence should be included in the report. Where carton-level verification and scan logging are specifically agreed, the report should also identify exceptions such as failed scans, duplicate values, missing labels, or data mismatches.

For every carton barcode or QR code included in the agreed inspection scope, UTS requires a 100% successful scan rate and a 100% match with the approved shipment data.

Further reading: UTS Defect Classification, UTS ANSI Sampling Tables.

Made in China Marking

Unless an exception applies, U.S. country-of-origin rules require an imported article of foreign origin, or its container, to be marked legibly with the English name of the country of origin. The marking must be conspicuous, legible, indelible, and permanent enough to reach the ultimate purchaser in the United States.^[7]

For goods whose correct origin is China, a clear English origin statement such as “Made in China” can be used. Our team verifies the visible marking against the product, immediate packaging, and approved artwork where applicable. UTS does not make customs-origin determinations; where production spans more than one country, the responsible party should obtain qualified customs advice before production and shipment.

• Permanent mold engraving can be suitable for many hard goods.
• Durable adhesive labels can be suitable when they remain visible through normal handling.
• Direct printing on the product or packaging can be suitable when the ultimate purchaser can see it clearly.
• Loose or easily removable stickers are recorded as an origin-marking risk.
• Markings obscured by retail packaging are recorded for corrective action.

For textile and wool products, U.S. labeling rules generally require fiber content, country of origin, and the identity of the manufacturer or another responsible business. Covered garments and certain piece goods also require care instructions.^[8]

During apparel and home-textile inspections, our team checks whether supplied label artwork and physical labels are consistent with the approved specification. We record the wording, placement, legibility, attachment, and visibility of the required information in the units inspected.

Further reading: UTS California Proposition 65 Testing, UTS Food Contact Material Testing (10 Migratable Substances).

Category-Specific Inspection

Electronics FBA Inspection

Electronics need focused inspection because functional defects, battery issues, and inconsistent technical documents can lead to returns, safety complaints, and marketplace document requests. CPSC recall notices for lithium-ion power banks show that overheating can create fire and burn hazards.^[9]

UTS provides electronics production inspection covering workmanship, product function, packaging, labeling, and the consistency of supplied technical documents with the inspected product model.

Electronics Check	UTS Inspection Focus
Product function	Power-on, charging, display, button, port, and basic operation checks against the approved specification.
Battery information	Battery model, rated capacity, supplied UN 38.3 test-summary information, and applicable transport marks.
Adapter check	Output voltage, polarity, plug configuration, rating label, and document consistency.
Compliance evidence	Consistency check between the product model, packaging, supplied laboratory report, declaration, and applicable destination-market requirement.
User information	Manuals, warnings, and product instructions required by the approved specification and destination market.

For radio-frequency products, the applicable U.S. FCC equipment-authorization procedure depends on the device and rule part. Our team can check whether supplied documents and product identifiers are consistent with the inspected product. UTS does not act as the certifying body.^[10]

For lithium battery products, our team checks the supplied UN 38.3 test summary, product and package identifiers, and visible transport marks where applicable. Under U.S. hazardous-materials requirements, lithium cells and batteries offered for transportation must have passed the applicable UN 38.3 design tests, and the required test summary must be made available through the supply chain.^[11]

Where a laboratory report is supplied, we compare the report model, revision, battery specification, and applicant information with the sampled product and packaging. A mismatch is recorded as a documentation inconsistency, not as a certification decision.

Further reading: UTS RoHS and REACH Testing Services, UTS Toy and Children's Product Testing (EN 71 Parts 1-3).

Apparel and Home Goods FBA Inspection

Apparel and home-goods inspection commonly focuses on dimensional tolerance, color consistency, workmanship, labeling, and packaging integrity. Our team compares the inspected units with the approved sample, size chart, artwork, and packaging specification.

UTS full inspection service uses calibrated measuring tools and an agreed inspection plan. When AQL sampling is used for general quality attributes, the lot size, inspection level, sample size, defect classification, and acceptance criteria should be agreed before inspection. ISO 2859-1:2026 provides an acceptance-sampling framework for inspection by attributes.^[12]

1. We measure critical dimensions such as chest width, sleeve length, waist, inseam, and total length.
2. We compare the results with the approved size chart and agreed tolerance.
3. We record findings by SKU, color, size, and measurement point.
4. We photograph visible defects, size labels, care labels, and packaging labels.
5. We compare retail packaging with the approved listing material and shipment plan supplied for inspection.

Color assessment should be based on an approved reference sample and agreed lighting conditions. Where the client specification calls for instrument measurement, our team records the method, measurement geometry, reference standard, and agreed acceptance threshold. A universal ΔE limit should not be assumed because materials, colors, end uses, and customer requirements differ.

For home goods, carton strength and packaging design should match the expected logistics environment. ASTM D642-25 covers compression testing of shipping containers, components, and unit loads and can be used as a reference when a compression test is included in the agreed inspection or laboratory-test scope.^[13]

For apparel packed in polybags, our team checks seal integrity, warning labels where applicable, barcode visibility, and compliance with the approved packing specification. Amazon states that a poly-bagged unit must have an exterior scannable barcode or label and that other visible scannable barcodes must be removed, covered, or rendered unscannable as applicable.^[14]

Where a barcode or QR code is visible through or applied to a polybag, every code included in the agreed inspection scope must scan successfully and match the approved record. The required scan success rate is 100%.

Further reading: UTS Furniture Inspection Checklist (23 Check Points), UTS China Factory Audit and Environmental Compliance.

Oversize and Hazardous Materials

Amazon FBA can apply separate rules to oversize and dangerous-goods products. Before shipment, our team reviews the current shipment plan, product dimensions, carton dimensions, gross weight, and supplied documentation. The responsible seller should confirm the current marketplace rule set in Seller Central because routing and product requirements can change.

Amazon requirements can change by marketplace, product type, shipment plan, and seller account configuration. The seller should therefore provide the current Seller Central instructions and approved shipment files before the inspection is booked.

For standard FBA boxes containing multiple items, Amazon announced effective June 20, 2025 a maximum length of 36 inches, maximum width of 25 inches, maximum height of 25 inches, and a maximum weight of 50 lb. The stated rules also have shipment-specific exceptions, so the final shipping plan should be checked before release.^[15]

Dangerous-goods review may involve lithium batteries, flammable liquids, aerosols, corrosive chemicals, or other regulated materials. Amazon may require dangerous-goods information, an SDS, or an exemption sheet during the classification process.^[16]

UTS final random inspection workflow can include carton measurement, weight verification, SDS review, package-marking review, and comparison of supplied dangerous-goods documents with the inspected product and packaging.

Risk Type	Document or Physical Check	Inspection Record Needed
Oversize shipment	Carton length, width, height, and actual gross weight	Measured data compared with the approved shipment plan and applicable Amazon routing rule.
Lithium battery product	UN 38.3 test summary, battery specification, package marking, and available SDS	Document and packaging information recorded for consistency review.
Flammable or chemical product	SDS, hazard classification, and package marking	Visible package information compared with the supplied dangerous-goods document set.
High-risk packaging	Inner protection, outer carton, closure condition, and applicable transport-packaging information	Packaging condition documented against the agreed specification.

For lithium battery products, our team does not classify dangerous goods for transport or issue transport approvals. We review the supplied documents, product information, and visible packaging condition within the agreed third-party inspection scope, then record inconsistencies for the responsible party to address.

Early document and packaging review can identify visible inconsistencies before the shipment is handed over for transport. It does not replace the responsible party’s obligation to obtain any required classification, approval, and marketplace acceptance.

Further reading: UTS Product Inspection in India, UTS Container Loading Supervision.

Pitfalls and Customs Clearance

Overweight and Dimension Mismatches

Carton measurements should match the shipment plan and applicable Amazon routing requirements. For standard FBA boxes containing multiple items, our team uses Amazon’s stated 36×25×25-inch and 50-lb reference limits, while also checking whether the shipment has a stated exception or a different requirement in the current shipment workflow.^[15]

UTS final random inspection service can include weight and dimension verification during pre-shipment inspection. We record actual gross weight and external carton dimensions against the approved shipment plan.

Carton Control Item	Inspection Method	Common Risk
Gross weight	Calibrated platform scale	Overweight carton, manual handling, or receiving delay
Length, width, and height	Steel tape or calibrated measuring tool	Declared-dimension mismatch or oversize reclassification
Carton strength	Visual deformation check and, where agreed, compression testing	Transit damage or warehouse-handling damage
Shipment data consistency	Cross-check against the approved shipment plan	Shipment discrepancy, manual processing, or receiving exception

For shipments involving container loading, we can also review the loading layout, carton count, visible carton condition, and seal record within the agreed loading-supervision scope. The report should state the measurement method, unit of measure, date, and the carton or batch reference linked to each result.

Further reading: UTS Supplier Capability Assessment (6 Dimensions), UTS Vietnam Product Inspection.

Blurry Labels Leading to Rejection

Amazon fulfillment operations rely on machine-readable item and carton identification. A label that does not decode reliably can create an inbound exception, rework, delay, or additional handling.

UTS checks whether required barcodes and QR codes scan successfully, remain clear and undamaged, and return data that matches the approved product or shipment record. Barcode grading or verifier-based print-quality assessment is included only when it is specifically agreed in the inspection scope.

1. Every barcode or QR code included in the agreed readability scope must be scanned, and the decoded result must match the approved record.
2. We compare every decoded result with the approved shipment, SKU, or traceability record.
3. We check visible print conditions, including contrast, edge definition, quiet zones, contamination, and label damage.
4. We record every scanning failure, duplicate value, missing code, and data mismatch as a defect.

Where the buyer specifically requests verifier-based barcode quality assessment, the method, equipment, symbol type, and acceptance criteria should be agreed before inspection. This supplementary assessment does not replace the UTS requirement that every code included in the agreed readability scope must scan successfully and match the approved record.

For sea freight, label material and adhesion should be selected for the expected handling and environmental conditions. Our team records visible lifting corners, contamination, surface damage, and poor adhesion at the time of inspection. This inspection observation does not replace a long-term environmental durability test unless such testing is included in the agreed laboratory scope.

Every material label finding can be photographed and filed with the inspection report.

Further reading: UTS Factory Evaluation Service, UTS Quality Management System Audit (ISO 9001 Clauses 4-10).

Inspection Report Archiving

The inspection report documents the sample, observable findings, measurements, photos, and final result under the agreed inspection criteria. It can support supplier corrective-action follow-up and provide traceability for the seller’s internal shipment review.

UTS recommends that every report include the following items:

• Inspection date and location
• Inspection scope and approved reference documents
• Sampling plan, AQL level where applicable, and sample size
• Pass and fail quantities
• Detailed defect descriptions with photos
• FNSKU, barcode, and QR-code scan-result summary where included in scope
• Box-label inspection records
• Dimensional and weight measurement data
• Final inspection result under the agreed criteria
• Corrective-action observations and reinspection status where applicable

When an AQL sampling plan is used, our team records the lot size, inspection level, sample size, acceptance number, rejection number, and defect classification used for the inspection. ISO 2859-1:2026 is the current ISO reference for AQL-indexed acceptance sampling by attributes.^[12]

The report and agreed supporting evidence should be stored using the buyer’s required access controls and naming conventions. The responsible seller should retain the inspection report together with purchase orders, packing lists, shipment-plan records, product test reports, and other order records needed for traceability.

UTS failed inspection report review guide supports consistent report storage and retrieval.

We recommend a uniform file naming convention: “ProjectName_ShipmentID_Date_EN.pdf”.

An inspection report is not a customs declaration, laboratory certificate, product certification, or Amazon acceptance decision. It is a third-party record of the inspection work completed under the agreed scope and criteria.

Further reading: UTS Social and Ethical Compliance Audit, UTS QC Inspection in China Guide.

For Amazon sellers, a pre-shipment FBA inspection is a practical control point before goods leave the factory. It can identify observable mismatches in product condition, labels, packaging, documents, and shipment data while corrective action is still possible.

From FNSKU scanning to carton-label verification, and from country-of-origin marking to category-specific document checks, each inspection point should be tied to an approved specification and a recorded result.

UTS supports sellers with third-party product inspections, factory audits, supplier assessments, loading supervision, and laboratory-testing support. Our reports help document findings for supplier follow-up and shipment-release decisions, while final regulatory, customs, certification, and marketplace obligations remain with the responsible parties.