CN code 620339 covers men's and boys' jackets and blazers of other textile materials not assigned to subheadings 620331 (wool), 620332 (cotton), and 620333 (synthetic fibers). This heading classifies jackets made of linen, silk, artificial fibers (viscose, lyocell, modal), and multi-fiber blends where none of the specified fibers dominate by weight. Linen jackets form a significant segment of summer clothing. Jackets made from viscose or lyocell are gaining popularity due to wearing comfort and breathability. Classification requires examining the dominant fiber of the outer fabric and confirming that the product has jacket rather than coat characteristics.

Jackets under code 620339 are subject to standard labeling requirements of Regulation (EU) No 1007/2011. Fiber names must be stated in generic form - linen, viscose, lyocell, silk - not as trade names. Fiber percentages are stated with a tolerance of up to 3 percent by weight. REACH requirements apply to dyes appropriate for each fiber type. Cellulosic fabrics (linen, viscose, lyocell) are susceptible to formaldehyde resin finishing, triggering formaldehyde limits for skin-contact clothing. Metal components are subject to nickel limits. The GPSR requires traceability and safety documentation. Silk jacket imports require confirmation of fiber authenticity.

Jackets under code 620339 are imported from various countries depending on material. Linen jackets originate from China, Italy, and European countries; viscose jackets from China and India; silk jackets from China and Vietnam. Origin rules require double transformation from the spinning stage. Customs documentation must precisely describe the garment material to enable correct classification. For multi-fiber blends, customs authorities may take samples for laboratory analysis to determine the dominant fiber. Binding Tariff Information provides legal certainty regarding classification. Tariff preferences depend on the country of origin and applicable trade agreements.

Blazers and jackets under CN 6203 39 are subject to market surveillance for product safety. The EU General Product Safety Regulation 2023/988 requires that clothing poses no mechanical risks (buttons, zippers) or chemical hazards. Market surveillance authorities sample products for laboratory testing. Importers are responsible for product compliance throughout the distribution chain and must maintain technical documentation.