Customs Inspection

Customs inspection (known in Latin America as aforo aduanero) is the act by which the customs authority checks and verifies an import or export declaration to confirm that what was declared matches what is actually being moved. Customs reviews four areas: the tariff classification of the goods, their customs value, their origin and the quantity or weight. That comparison determines how much in duties and taxes is paid and whether the shipment is released.

In Argentine practice, inspection does not always mean opening the cargo: the system assigns a selectivity channel (green, orange or red) that defines how intensive the verification will be. That is why "clearing through the green channel" means, in practice, that the shipment passed inspection with no additional review. Inspection is one link in customs clearance and fits within the foreign trade processes that the logistics operation coordinates, something Vantegrate addresses through the International Logistics industry.

Understanding inspection matters because an error in the declaration (a wrongly assigned tariff code, an underdeclared value or a missing certificate) is caught precisely here, and it can hold up the cargo, trigger fines or lead to value adjustments.

How the type of inspection is decided

When a customs broker files the declaration in the Malvina (SIM) system of Argentina's customs service, a risk management engine evaluates the shipment and assigns it a channel. That channel sets the depth of the control and, therefore, the type of inspection applied. The logic is the same across much of Mercosur, although each country names its channels and systems in its own way.

The three types of inspection, depending on the assigned channel, are:

• Documentary inspection (orange channel): customs does not open the cargo, but an inspector reviews the documentation in detail: commercial invoice, packing list, bill of lading, certificate of origin and the consistency between the declared tariff code and the description of the goods.
• Physical inspection (red channel): in addition to the documentary review, there is a physical examination of the goods. The inspector (or a scanner) confirms the actual type, quantity, condition and characteristics to compare them with what was declared. It is the most intrusive control and the one that adds the most delay to clearance.
• Automatic inspection (green channel): the shipment is released without intervention from an inspector. The system validates and authorizes the release of the cargo directly. It is the fastest scenario and the one every importer with its paperwork in order aims for.

Why it matters for the operation

The inspection channel translates into time and cost. A green channel releases the cargo almost immediately; a red channel can add days of delay in the primary customs zone, with the risk of storage charges and, for containers that use up their free time at the port, demurrage fees. For a supply chain that moves volume, the difference between operating mostly in green and operating in red has a direct impact on supply lead time and on inventory predictability.

The second reason is compliance. Inspection is the point where customs detects inconsistencies: an incorrect classification that paid less in duties than it should have, a value the system considers below the reference values (valores criterio), or goods that do not match their description. These findings lead to adjustments, fines or, in serious cases, a formal charge for a customs violation.

A concrete example

An Argentine auto parts importer brings in a container from Brazil under the Mercosur regime. It declares a tariff code that carries a preferential duty rate thanks to the bloc's certificate of origin. The SIM assigns it the orange channel: customs performs a documentary inspection and notes that the invoice description does not support the declared tariff code. The customs broker has to amend the declaration, reclassify the goods and, possibly, pay the difference in duties before the cargo is released. If the documentation had been aligned from the start, the shipment would most likely have cleared through the green channel, without that friction.

Types of inspection at a glance

Common mistakes

The first is treating the channel as pure chance: selectivity responds to risk profiles, the operator's track record, the type of goods and historical consistency, so a meticulous importer tends to clear through green more often. The second is neglecting documentary consistency: the invoice, packing list and certificate of origin have to tell the same story, because documentary inspection is built on that consistency. The third is underestimating classification: forcing a tariff code to pay less is one of the most frequent causes of value adjustments and fines when the inspection turns physical.