Classification follows the essential character rule under GRI 3: CBP generally classifies the article by its primary function (e.g., as exercise equipment) rather than its electronic component. However, if the electronic element is integral and dominant, a different heading may apply. A binding ruling from CBP is advisable for complex articles before large-volume importation.

Importers must provide a commercial invoice with detailed product descriptions, country of origin, and HTS classification. For Section 301-affected goods, accurate origin documentation is essential, and any first-sale or assist declarations should be prepared. If goods are assembled in a third country using Chinese components, a substantial transformation analysis may be needed to determine the correct origin.