CHAPTER 54 · LEGAL NOTES
Chapter 54
The 137 legal notes below govern classification under Chapter 54. They are part of the official Harmonized Tariff Schedule and are cited verbatim in CBP rulings.
As of June 9, 2026
Chapter notes
Note 1
Chapter Note 1: Throughout the tariff schedule, the term "man-made fibers" means staple fibers and filaments of organic polymers produced by manufacturing processes, either: (a) By polymerization of organic monomers to produce polymers such as polyamides, polyesters, polyolefins or polyurethanes, or by chemical modification of polymers produced by this process (for example, poly(vinyl alcohol) prepared by the hydrolysis of poly(vinyl acetate)); or (b) By dissolution or chemical treatment of natural organic polymers (for example, cellulose) to produce polymers such as cuprammonium rayon (cupro) or viscose rayon, or by chemical modification of natural organic polymers (for example, cellulose, casein and other proteins, or alginic acid), to produce polymers such as cellulose acetate or alginates. The terms "synthetic" and "artificial", used in relation to fibers, mean: synthetic: fibers as defined at (a); artificial: fibers as defined at (b).
Note 2
Chapter Note 2: Headings 5402 and 5403 do not apply to synthetic or artificial filament tow of chapter 55.
Statistical notes
Note 1
Statistical Note 1: For the purposes of the woven fabrics of chapter 54: (a) Unless the context otherwise requires, provisions relating to one or more weaves embrace only those fabrics which (excluding selvage) are wholly of the specified weave or weaves, including combinations exclusively thereof. (b) The term "flat fabrics" means fabrics not containing yarns twisted more than 472 turns per meter. (c) The term "poplin or broadcloth" means plain weave fabrics, not of square construction, whether or not napped, but does not include the following types: (i) Fabrics weighing not more than 170 grams per square meter, containing 33 or less warp ends and filling picks per square centimeter; and (ii) Fabrics weighing more than 170 grams per square meter, of average yarn number 26 or lower number.
Note 11
Statistical Note 11: 3%1/ kg 1
Note 19
Statistical Note 19: 4¢/kg + 18% m² 1/ kg Of yarns of different colors, the thread count of which per cm (treating multiple (folded) or cabled yarns as single threads) is over 69 but not over 142 in the warp and over 31 but not over 71 in the filling: Wholly of polyester, of single yarns meas- uring not less than 75 decitex but not more than 80 decitex, having 24 filaments per yarn and with a twist of 900 or more turns per meter
Note 2
Statistical Note 2: The term "discharge printed" fabrics refers to fabrics which have been: (a) Dyed, not tinted, a single uniform color other than white; (b) Further processed using a method whereby chlorine or other color-destroying chemicals are applied to discrete portions of the dyed fabric to bleach out or discharge the dye and printed in those discrete portions thereby yielding a different colored pattern on the previously dyed ground; and (c) Subjected to two or more of the following finishing operations: bleaching, shrinking, filling, napping, decating, permanent stiffening, weighting, permanent embossing or moireing. Unit Rates of Duty of Quantity Article Description Stat. Suffix Heading/ Subheading 1 2 General Special Sewing thread of man-made filaments, whether or not put up for retail sale: 5401
Note 8
Statistical Note 8: 5%1/ kg kg 1 Unit Rates of Duty of Quantity Article Description Stat. Suffix Heading/ Subheading 1 2 General Special Woven fabrics of synthetic filament yarn, including woven fabrics obtained from materials of heading 5404: 5407 Other woven fabrics, containing 85 percent or more by weight of filaments of nylon or other polyamides:
footnote
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Classify under Chapter 54 with confidence
TariffLens applies the legal notes above automatically when classifying — citing the relevant note in every GRI reasoning chain.