Meaning
Sequential classification principles governed by the World Customs Organization dictate how imported goods are classified within the Harmonized System nomenclature. Customs specialists apply the general rule of interpretation to assign objective tariff codes to raw polymers, masterbatches and fabricated plastic products. The framework consists of six hierarchical rules that must be applied in strict numerical sequence.
Hierarchical Structure
Rule 1 dictates that classification is determined according to the terms of headings and relative section or chapter notes. Applying the general rule of interpretation ensures that specific product descriptions take precedence over general descriptions. Subsequent rules address incomplete goods, multi-component mixtures and items that appear codable under multiple headings.
Strict application prevents arbitrary tariff selection by customs declarants.
Compound Application
Polymer compounds containing fillers, colorants and additives require systematic analysis under intermediate rules. Rules 2 and 3 govern mixtures and composite goods when single headings fail to cover all constituents. Classification depends on identifying which component imparts the essential character to the complete mixture.
Uniform Clearance
Standardized application of these rules creates global consistency across international customs jurisdictions. Importers rely on consistent rule application to forecast duty liabilities across international supply chains. Misinterpreting legal priority rules causes incorrect tariff filings and unexpected customs reassessments.