Meaning
International classification rules govern the determination of tariff codes for goods that consist of multiple materials or are imported as sets. The general interpretative rule, known as gir 3b, dictates that mixtures and composite goods must be classified as if they consisted of the material or component that gives them their essential character. This rule applies when goods cannot be classified by reference to prior principles.
It does not apply when a specific tariff heading already describes the composite item.
Essential Character
Determining which component of a wireless device provides its primary function requires analyzing the value, bulk, and role of each part. In a smart device with integrated sensors and a radio module, the primary purpose of the product usually defines the classification. The radio component is treated as a secondary feature.
Composite Evaluation
Customs examiners weigh different factors including the relative value and physical proportion of each material in the assembly. This assessment ensures that composite devices receive a uniform tariff treatment. The evaluation is highly technical and specific to each product.
Customs Application
Importers use this rule to defend their tariff declarations during audits by presenting functional analyses of their products. This justification helps avoid misclassification penalties. The argument must be supported by engineering documentation.