What does HTS Chapter 55 cover?

Chapter 55 of the U.S. Harmonized Tariff Schedule (HTSUS) covers Man-made staple fibers. It sits within Section XI: Textiles and Textile Articles. Tandom's catalog lists all 399 10-digit statistical lines and 15 4-digit headings in this chapter.

What is the typical U.S. duty rate for Chapter 55 imports?

General (Column 1) duty rates for ad-valorem lines range from 4.3% to 25% (median 12%); roughly 8% of lines enter duty-free. Use the calculator linked from each code page to compute the full landed rate, including Section 301/232 overlays, IEEPA tariffs, and AD/CVD deposits where applicable.

Are Section 301 or Section 232 tariffs applied to Chapter 55 products?

Section 301 (China) and Section 232 (steel, aluminum, copper) tariffs are layered on top of the base HTSUS rate via Chapter 99 provisions. Whether they apply to a specific 10-digit line in Chapter 55 depends on the product's country of origin, material content, and the active proclamation. Open any code in this chapter to see the live overlay stack and effective rate.

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 55 products?

AD/CVD orders are issued at the case level by the Department of Commerce against specific products from specific countries. Tandom's AD/CVD catalog cross-references every active order to the HTS codes it covers — open any code in Chapter 55 to see flagged orders, deposit rates, and the underlying scope determinations.

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Section XI: Textiles and Textile Articles

Chapter 55: Man-made staple fibers

Chapter 55 of the U.S. Harmonized Tariff Schedule covers Man-made staple fibers and sits within Section XI: Textiles and Textile Articles.

About Chapter 55

Chapter 55 contains 399 10-digit statistical lines grouped under 15 4-digit headings. Brokers, importers, and customs counsel use these codes to declare man-made staple fibers on entry summaries (CBP Form 7501) and to look up the applicable Column 1, Special, and Column 2 duty rates.

General (Column 1) duty rates for ad-valorem lines in Chapter 55 range from 4.3% to 25%, with a median of 12%. About 8% of the chapter's lines (32 of 399) enter duty-free under the general rate. Special-program rates (USMCA, KORUS, GSP, AGOA, and others) and Chapter 99 overlays modify these base rates for qualifying shipments.

Every code page links into the Tandom Tariff Calculator with the HTS code prefilled, so you can compute the full landed duty for a specific shipment by entering value, country of origin, and (where relevant) material content or date of entry. Tandom's data refreshes daily from USITC HTSUS, CBP CSMS, the Federal Register, and the Department of Commerce — the same authoritative sources the trade community files against.

Code	Description	General	Column 2	Special	Units
5501.11.00.00	·Of aramids	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5501.19.00.00	·Other	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5501.20.00.00	Of polyesters	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5501.30.00	Acrylic or modacrylic	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	—
5501.30.00.10	·Containing 92 percent or more by weight of acrylonitrile units with filaments numbering fewer than 70,000 (+/-2000) with filament diameter 1.59 decitex (plus or minus 0.027) or less, or in a separable tow construction capable of being separated into tows of 70,000 (+/-2000) or fewer with filament diameter 1.59 decitex (plus or minus 0.027) or less.	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5501.30.00.90	·Other	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5501.40.00.00	Of polypropylene	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5501.90.01.00	Other	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg

Code	Description	General	Column 2	Special	Units
5502.10.00.00	Of cellulose acetate	7.5%	45%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5502.90.00.00	Other	7.5%	45%

Code	Description	General	Column 2	Special	Units
5503.11.00.00	·Of aramids	4.3%	25%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5503.19	·Other:	—	—

Code	Description	General	Column 2	Special	Units
5504.10.00.00	Of viscose rayon	4.3%	25%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5504.90.00.00	Other	4.3%	25%

Code	Description	General	Column 2	Special	Units
5505.10.00	Of synthetic fibers	Free	10%	—	—
5505.10.00.20	·Of nylon or other polyamides	Free	10%

Chapter 55: Man-made staple fibers

`5501`Synthetic filament tow:

`5502`Artificial filament tow:

`5503`Synthetic staple fibers, not carded, combed or otherwise processed for spinning:

`5504`Artificial staple fibers, not carded, combed or otherwise processed for spinning:

`5505`Waste (including noils, yarn waste and garnetted stock) of man-made fibers:

`5506`Synthetic staple fibers, carded, combed or otherwise processed for spinning:

`5507`Artificial staple fibers, carded, combed or otherwise processed for spinning

`5508`Sewing thread of man-made staple fibers, whether or not put up for retail sale:

`5509`Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale:

`5510`Yarn (other than sewing thread) of artificial staple fibers, not put up for retail sale:

`5511`Yarn (other than sewing thread) of man-made staple fibers, put up for retail sale:

`5512`Woven fabrics of synthetic staple fibers, containing 85 percent or more by weight of synthetic staple fibers:

`5513`Woven fabrics of synthetic staple fibers, containing less than 85 percent by weight of such fibers, mixed mainly or solely with cotton, of a weight not exceeding 170 g/m²:

`5514`Woven fabrics of synthetic staple fibers, containing less than 85 percent by weight of such fibers, mixed mainly or solely with cotton, of a weight exceeding 170 g/m²:

`5515`Other woven fabrics of synthetic staple fibers:

`5516`Woven fabrics of artificial staple fibers:

Frequently asked questions

What does HTS Chapter 55 cover?

What is the typical U.S. duty rate for Chapter 55 imports?

Are Section 301 or Section 232 tariffs applied to Chapter 55 products?

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 55 products?

Code	Description	General	Column 2	Special	Units
5506.10.00.00	Of nylon or other polyamides	5%	51.5%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5506.20.00.00	Of polyesters	5.7%	51.5%

Code	Description	General	Column 2	Special	Units
5508.10.00.00	Of synthetic staple fibers (200)	11.4%	55%	Free (AU,BH,CL,CO,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
5508.20.00.00	Of artificial staple fibers (200)	11%

Code	Description	General	Column 2	Special	Units
5509.11.00.00	·Single yarn (604)	9.4%	54%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5509.12.00.00	·Multiple (folded) or cabled yarn (604)	10.6%

Code	Description	General	Column 2	Special	Units
5510.11.00.00	·Single yarn (603)	9%	54%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	kg
5510.12.00.00	·Multiple (folded) or cabled yarn (603)	10.6%

Code	Description	General	Column 2	Special	Units
5511.10.00	Of synthetic staple fibers, containing 85 percent or more by weight of such fibers	7.5%	55%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	—
5511.10.00.30	·Acrylic or modacrylic (200)

Code	Description	General	Column 2	Special	Units
5512.11.00	·Unbleached or bleached	12%	81%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	—
5512.11.00.10	··Poplin or broadcloth (614)	12%

Code	Description	General	Column 2	Special	Units
5513.11.00	·Of polyester staple fibers, plain weave	14.9%	81%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	—
5513.11.00.20	··Poplin or broadcloth (614)

Code	Description	General	Column 2	Special	Units
5514.11.00	·Of polyester staple fibers, plain weave	14.9%	81%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	—
5514.11.00.20	··Poplin or broadcloth (614)

Code	Description	General	Column 2	Special	Units
5515.11.00	·Mixed mainly or solely with viscose rayon staple fibers	14.9%	81%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	—
5515.11.00.05	··Of yarns of different colors, except blue denim or jacquard weave (218)

Code	Description	General	Column 2	Special	Units
5516.11.00	·Unbleached or bleached	14.9%	81%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	—
5516.11.00.10	··Plain weave (611)	14.9%

5501Synthetic filament tow:

5502Artificial filament tow:

5503Synthetic staple fibers, not carded, combed or otherwise processed for spinning:

5504Artificial staple fibers, not carded, combed or otherwise processed for spinning:

5505Waste (including noils, yarn waste and garnetted stock) of man-made fibers:

5506Synthetic staple fibers, carded, combed or otherwise processed for spinning:

5507Artificial staple fibers, carded, combed or otherwise processed for spinning

5508Sewing thread of man-made staple fibers, whether or not put up for retail sale:

5509Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale:

5510Yarn (other than sewing thread) of artificial staple fibers, not put up for retail sale:

5511Yarn (other than sewing thread) of man-made staple fibers, put up for retail sale:

5512Woven fabrics of synthetic staple fibers, containing 85 percent or more by weight of synthetic staple fibers:

5513Woven fabrics of synthetic staple fibers, containing less than 85 percent by weight of such fibers, mixed mainly or solely with cotton, of a weight not exceeding 170 g/m²:

5514Woven fabrics of synthetic staple fibers, containing less than 85 percent by weight of such fibers, mixed mainly or solely with cotton, of a weight exceeding 170 g/m²:

5515Other woven fabrics of synthetic staple fibers:

5516Woven fabrics of artificial staple fibers:

Frequently asked questions

What does HTS Chapter 55 cover?

What is the typical U.S. duty rate for Chapter 55 imports?

Are Section 301 or Section 232 tariffs applied to Chapter 55 products?

Are there antidumping or countervailing duty (AD/CVD) orders covering Chapter 55 products?

`5501`Synthetic filament tow:

`5502`Artificial filament tow:

`5503`Synthetic staple fibers, not carded, combed or otherwise processed for spinning:

`5504`Artificial staple fibers, not carded, combed or otherwise processed for spinning:

`5505`Waste (including noils, yarn waste and garnetted stock) of man-made fibers:

`5506`Synthetic staple fibers, carded, combed or otherwise processed for spinning:

`5507`Artificial staple fibers, carded, combed or otherwise processed for spinning

`5508`Sewing thread of man-made staple fibers, whether or not put up for retail sale:

`5509`Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale:

`5510`Yarn (other than sewing thread) of artificial staple fibers, not put up for retail sale:

`5511`Yarn (other than sewing thread) of man-made staple fibers, put up for retail sale:

`5512`Woven fabrics of synthetic staple fibers, containing 85 percent or more by weight of synthetic staple fibers:

`5513`Woven fabrics of synthetic staple fibers, containing less than 85 percent by weight of such fibers, mixed mainly or solely with cotton, of a weight not exceeding 170 g/m²:

`5514`Woven fabrics of synthetic staple fibers, containing less than 85 percent by weight of such fibers, mixed mainly or solely with cotton, of a weight exceeding 170 g/m²:

`5515`Other woven fabrics of synthetic staple fibers:

`5516`Woven fabrics of artificial staple fibers: