Harmonized Tariff Schedule of the United States · HTS code · HS 8544.70
8544.70.00: Insulated: optical fiber cables
Optical fibre cables
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 8544 Insulated (including enameled or anodized) wire, cable (including coaxial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fiber cables, made up of individually sheathed fibers, whether or not assembled with electric conductors or fitted with connectors:
- 8544.70.00 Optical fiber cables
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 1
- Additional dutySection 338 — Canada — discrimination against US alcoholic beverages, dairy, motor vehicles (Proclamations 11046–11048, as modified) 50%
- Applies to goods from
- Canada
- In force
- from 22 August 2026
- Legal act
- HTSUS 9903.03.14
Same subheading in other tariffs
8544.70 Insulated: optical fibre cables
UK Free Third-country duty 3 tariff lines 
EU Free Third-country duty 1 tariff line 
Türkiye Free Third-country duty 1 tariff line 
Canada Free Third-country duty 1 tariff line 
Mexico 35% Third-country duty 1 tariff line 
Brazil Free – 20% Third-country duty 4 tariff lines · average 15% 
Argentina Free – 12.6% Third-country duty 16 tariff lines · average 11.8% 
Peru Free Third-country duty 1 tariff line 
New Zealand Free Third-country duty 2 tariff lines 
Japan Free Third-country duty 2 tariff lines 
Taiwan Free Third-country duty 1 tariff line 
GCC Free Third-country duty 1 tariff line 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia Free Third-country duty 1 tariff line 
Nigeria 5% Third-country duty 1 tariff line Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N362917 U.S. CBP
The tariff classification of a pre-install cable set from the Netherlands
- N357655 U.S. CBP
The tariff classification, country of origin, and eligibility of the United States-Korea Free Trade Agreement (UKFTA) of fiber optic cables
- N356840 U.S. CBP
The tariff classification and eligibility of the United States-Korea Free Trade Agreement (UKFTA) of fiber optic cables
- N344044 U.S. CBP
The tariff classification of an optical fiber cable from Japan
- H337046 U.S. CBP
Application for Further Review of Protest 5501-23-106826; Country of Origin and Tariff Classification of Fiber Optic Cables; Section 301 Measures
- N342021 U.S. CBP
The tariff classification of a hybrid underwater cable from Greece
- N330604 U.S. CBP
The tariff classification of a submarine cable from the United Kingdom
- N324842 U.S. CBP
The tariff classification of optical cables from India
Legal notes
HTS code 8544.70.00 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 8544.70 (insulated: optical fibre cables).
The general duty is free, and quantities are declared in Fiber m.
For the same subheading, the UK duty is free, the EU duty is free, the Türkiye duty is free, the Canada duty is free, the Mexico duty is 35%, the Brazil duty is 0%–20%, the Argentina duty is 0%–12.6%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is free, the GCC duty is free, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is free and the Nigeria duty is 5%.
The United States imported goods of subheading 8544.70 worth US$2bn in 2024; the largest supplier was Mexico, and the United Kingdom ranked 7th with US$40m.
Questions and answers
What is the USA import duty for HTS code 8544.70.00?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is Fiber m. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 8544.70 as a whole, the largest supplier in 2024 was Mexico (US$1bn), followed by China.
Typical products
Everyday names, not part of the legal text.