Classification under 6006.44 requires that artificial fibers constitute the predominant fiber by weight. If synthetic fibers (e.g., polyester or nylon) exceed artificial fibers in weight, the fabric would instead fall under the synthetic-fiber heading 6006.34. For blended fabrics, a fiber content analysis by weight is essential, and the result should be documented with a laboratory test report or mill certificate to support the classification.

Importers should verify Section 301 tariff applicability for the specific HTS line, ensure the commercial invoice accurately states fiber content and knit construction, and confirm that any printed designs do not infringe on US intellectual property rights. Working with a licensed customs broker familiar with textile classification is advisable given the layered duty and trade-remedy exposure on Chinese-origin textile goods.