Man-made filaments; strip and the like of man-made textile materials

The 8 headings of chapter 54

• 5401: Sewing thread of man-made filaments, whether or not put up for retail sale (2 codes, General duty 11.4%)
• 5402: Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex (54 codes, General duty Free to 8.8%)
• 5403: Artificial filament yarn (other than sewing thread), not put up for retail sale, including artificial monofilament of less than 67 decitex (15 codes, General duty 7.5% to 10%)
• 5404: Synthetic monofilament of 67 decitex or more and of which no cross-sectional dimension exceeds 1 mm; strip and the like (for example, artificial straw) of synthetic textile materials of an apparent width not exceeding 5 mm (8 codes, General duty Free to 6.9%)
• 5405: Artificial monofilament of 67 decitex or more and of which no cross-sectional dimension exceeds 1 mm; strip and the like (for example, artificial straw) of artificial textile materials of an apparent width not exceeding 5 mm (2 codes, General duty 5.8% to 6.9%)
• 5406: Man-made filament yarn (other than sewing thread), put up for retail sale (4 codes, General duty 7.5%)
• 5407: Woven fabrics of synthetic filament yarn, including woven fabrics obtained from materials of heading 5404 (123 codes, General duty Free to 25%, some per unit)
• 5408: Woven fabrics of artificial filament yarn, including woven fabrics obtained from materials of heading 5405 (57 codes, General duty Free to 25%, some per unit)

Where it sits in the schedule

Chapter 54 is in Section XI of the Harmonized System, textiles and apparel (chapters 50 to 63). Rates are those printed in the 2026 HTS Revision 23; Chapter 99 duties (Section 232, Section 301, IEEPA) are charged on top and are not included.