5509.42.00
Multiple (folded) or cabled yarn
Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale: Other yarn, containing 85 percent or more by weight of synthetic staple fibers
Data provenance: Rates from HTS Revision 19 (Sep 16, 2026); trade measures verified against CBP CSMS and Federal Register notices through Sep 3, 2026.
Duty rates
Column 1 (General / MFN)
7%
Column 2 (Non-NTR)
61.5%
Column 1 (Special / FTA)
Free
Eligible
The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.
Trade measures (Chapter 99)
9903.88.03
LIST_1
The duty provided in the applicable subheading + 25%
ActiveExcept as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Applies to origin: CN
Effective from August 23, 2018
Rate-change history
What the rate was before, and when it changed. The government schedule replaces each revision in place; we keep the timeline.
-
NEW_PROGRAM Executive Order Feb 1, 2026 — Reciprocal Tariff (FR 2026-03824)
Section 122 reciprocal surcharge in effect — additional 10% on most imports through July 24, 2026
See the change → -
Base rate HTS 2023
Column 1 general rate set to 7%.
Related CBP rulings
The tariff classification of polyester and cotton staple yarn from Indonesia
The sample was sent for laboratory analysis and will be retained for reference purposes. The subject article, which
The tariff classification of acrylic yarns from Turkey
The sample was sent for laboratory analysis and will be retained for reference purposes. The sample submitted is a green yarn described as a dyed 100 percent acrylic staple fiber yarn.
The tariff classification of a polyester stable fiber yarn from Vietnam or Indonesia
The sample will be retained for reference purposes. The sample, described as “28/1 (Ne),” is a single ply yarn stated to be composed of 80 percent polyester and 20 percent cotton staple fibers. The yarn will be used in a commercial setting
The tariff classification of aramid embroidery threads from Germany
The samples will be retained for reference purposes. Style “Fire Fighter FR, No. 40,” is a fire resistant embroidery thread stated to be composed of 100 percent aramid staple fibers.
Ruling Request; Tariff Classification of Core Spun Single Yarn; United States-Mexico-Canada Agreement
The subject yarn, identified as 2P638-240, is a 2-ply black and beige yarn. You describe the yarn as a core spun single yarn with a fiberglass core, covered by a sheath of para aramid and meta aramid, and then twisted with one end of polyac
The tariff classification of cotton yarns and polyester yarn from China.
The samples were sent to the Customs and Border Protection laboratory for fiber content analysis. You submitted samples of yarns 16/S, 20/S, and 24/S.
The tariff classification of a knit yarn from Portugal
You submitted a ball of knitting yarn. It appears to have been cut from a wide fabric to an apparent width of 7-8 mm with curled edges; when flattened, it is 22-23 mm wide. It is stated to be made from fibers reclaimed from chopped scraps o
Classification and country of origin determination for sewing thread; 19 CFR 102.21(c)(4)
The subject merchandise consists of sewing thread. The manufacturing operations for the sewing thread are as follows, according to your letter: Nomex fiber, originating in DuPont's Spain or USA production facility is stretch-broken and spun
Classification and country of origin determination for aramid yarns; 19 CFR 102.21(c)(2); tariff shift
The subject merchandise consists of staple fiber aramid yarns. The manufacturing operations for the yarns are as follows: U.S.-manufactured continuous filaments are shipped to yarn processors in either Italy or France where the filaments ar
The tariff classification of a needlecraft kit from China
The submitted sample is identified as a Quickpoint Kitten in a Basket (Item 02302). It consists of a 6¼” x 6¼” piece of plastic mesh, a 7” x 7” plastic frame, one plastic sewing needle, 26 yards of 100% acrylic yarn, and paper instructions.
The tariff classification and status under the North American Free Trade Agreement (NAFTA), of yarns from Canada; country of origin; 19 C.F.R. §102.21(c)(2); Article 509
You have submitted four yarn samples. Style MFT 344 is a 4-ply yarn made of two plies of polyfilament (27%) and two plies of the following: 18.25% rayon, 40.15% polyester staple fibers, and 14.6% acrylic staple fibers. DMF444 is three plies
NAFTA; inventory management methods; fungible material; 19 CFR 181 App. Schedule X
According to your letter, Main manufactures men’s and women’s undergarments in Canada. These garments are made with yarn from the United States and India. The yarn from the United States is wholly produced in the United States, and the yarn
Other codes in heading 5509
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 5509.42.00 from each major US trading partner.
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