A US Customs examination is one of the biggest schedule risks for first-time AGV importers. Even when documentation is complete and accurate, an AGV shipment may still be selected for inspection due to factors such as:

• Lithium batteries

• New importer status

• High-value industrial equipment

• Country-of-origin verification

• Random inspection targeting

• Intellectual property enforcement programs

Important: The largest risk is often not additional customs duty—it is the delay, storage fees, demurrage, detention charges, and project disruption that can follow a customs examination.

What Happens During an Intensive Customs Examination?

Vessel Arrival
↓
Container Flagged
↓
Customs Hold
↓
Container Moved to CES
↓
Physical Examination
↓
Cargo Release

CES stands for Container Examination Station. The container is typically transferred from the marine terminal to an approved inspection facility where customs officers physically inspect the cargo.

How Long Can an AGV Customs Exam Take?

Many AGV buyers focus on ocean transit times, but a customs hold can sometimes create a larger delay than the voyage itself.

What Storage Fees Can Accumulate?

When a customs hold occurs, several cost categories may begin accumulating simultaneously.

CES fees may include:

• Container transfer

• Lift-on / lift-off charges

• Unpacking and repacking

• Administrative processing fees

• Examination labor charges

Can Customs Request RCS Source Code?

Generally, no.

For AGV imports, customs officers rarely request source code reviews. Instead, they typically focus on:

• Product descriptions

• Technical specifications

• User manuals

• Product brochures

• FCC documentation (if applicable)

• Battery certifications

Customs authorities are primarily concerned with tariff classification, country of origin, regulatory compliance, and intellectual property enforcement—not AGV navigation algorithms or source code.

What If Customs Questions Intellectual Property?

Occasionally, customs authorities may investigate:

• Trademark infringement

• Counterfeit products

• Unauthorized use of protected technology

To prepare, maintain:

• Supplier authorization letters

• Brand ownership documentation

• Product certifications

• Manufacturer declarations

Legitimate AGV manufacturers rarely encounter source-code-related customs issues.

What If Customs Inspects the Lithium Batteries?

Lithium battery documentation reviews are significantly more common than software-related inspections.

Customs may request:

• Battery chemistry information

• UN38.3 certification reports

• SDS / MSDS documentation

• Safety testing records

• Battery capacity specifications

How to Reduce Lithium Battery Inspection Delays

Before shipment leaves China, obtain a complete battery documentation package containing:

• UN38.3 Test Report

• SDS / MSDS Documentation

• Cell Specifications

• Battery Pack Specifications

• Manufacturer Information

Also verify:

• Correct lithium battery labels

• Proper packaging markings

• Country-of-origin markings

• Hazard labels (if applicable)

Many customs delays occur because documentation and physical product labels do not match.

What Happens If Customs Finds Incorrect Marking?

Common examples include:

• Missing country-of-origin labels

• Incorrect manufacturer identification

• Packaging inconsistencies

• Improper product markings

Will the Chinese Supplier Pay Examination Costs?

Only if your contract explicitly requires it.

Many AGV purchase agreements state that:

Buyer assumes responsibility for all import compliance, customs clearance, storage charges, examination costs, demurrage, detention, and broker fees.

Without additional contract language, the importer usually bears these costs.

Recommended Contract Clause

Supplier warrants that all product markings, labels, certifications, and export documentation comply with applicable import regulations. Supplier shall reimburse Buyer for direct costs arising from supplier-caused documentation or marking errors.

This clause can provide leverage if customs issues originate from factory documentation errors.

Documents Every AGV Importer Should Prepare

Risk Reduction Strategy

Experienced AGV Importers Typically:

• ✔ Submit documentation before vessel arrival

• ✔ Review battery paperwork before shipment leaves China

• ✔ Verify country-of-origin markings during factory inspection

• ✔ Photograph labels and packaging before shipment

• ✔ Work with an experienced customs broker

• ✔ Budget for possible customs examinations

• ✔ Negotiate free-time terms with shipping lines

• ✔ Prepare warehouse unloading resources before cargo release

Final Recommendation

For first-time AGV imports into the United States, the safest strategy is proactive preparation rather than reactive problem solving.

Verify lithium battery documentation before shipment, confirm all country-of-origin markings, provide complete technical documentation to your customs broker, and review supplier responsibilities in the purchase contract.

The most expensive AGV customs issue is rarely additional duty—it is the combination of customs delays, demurrage, detention, CES fees, trucking rescheduling, and project disruption that follows.