Key facts
- HS code
- 8544.70
- Covers
- Optical fibre cables
- Edition
- HS2022
- Duty in the United States
- See its 1 line
Summary
HS code 8544.70 covers optical fibre cables. It sits in heading 85.44 (insulated (including enamelled or anodised) wire, cable (including co-axial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fibre cables, made up of individually sheathed fibres, whether or not assembled with electric conductors or fitted with connectors) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles). Other goods of heading 85.44 are classified under 8544.11 (winding wire, of copper), 8544.19 (winding wire, other), 8544.20 (co-axial cable and other co-axial electric conductors), 8544.30 (ignition wiring sets and other wiring sets of a kind used in vehicles, aircraft or ships) or 3 others. National tariff lines under 8544.70 are live on border.bot for the United States (1 line, also used by 1 other country).
What this code covers
HS code 8544.70 covers optical fibre cables.
The legal text of the subheading is “Optical fibre cables”, in HS2022.
What it doesn’t cover
Other goods of heading 85.44 are classified under 8544.11 (winding wire, of copper), 8544.19 (winding wire, other), 8544.20 (co-axial cable and other co-axial electric conductors), 8544.30 (ignition wiring sets and other wiring sets of a kind used in vehicles, aircraft or ships) or 3 others.
- 8544.11Winding wire: Of copper
- 8544.19Winding wire: Other
- 8544.20Co-axial cable and other co-axial electric conductors
- 8544.30Ignition wiring sets and other wiring sets of a kind used in vehicles, aircraft or ships
- 8544.42Other electric conductors, for a voltage not exceeding 1 000 V: Fitted with connectors
- 8544.49Other electric conductors, for a voltage not exceeding 1 000 V: Other
- 8544.60Other electric conductors, for a voltage exceeding 1,000 V
How it is structured
8544.70 is a six-digit subheading. Its first two digits, 85, are the chapter; the first four, 8544, are heading 85.44; the last two, 70, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Subheading 8544.70
- Optical fibre cables
In other countries
National tariff lines under 8544.70 are live on border.bot for the United States (1 line, also used by 1 other country).
- United States1 line, used by 1 other country
Frequently asked questions
What does HS code 8544.70 cover?
HS code 8544.70 covers optical fibre cables.
Which heading and chapter is HS code 8544.70 in?
HS code 8544.70 is in heading 85.44 (insulated (including enamelled or anodised) wire, cable (including co-axial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fibre cables, made up of individually sheathed fibres, whether or not assembled with electric conductors or fitted with connectors) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles).
Where are goods of heading 85.44 classified when 8544.70 doesn’t fit?
Other goods of heading 85.44 are classified under 8544.11 (winding wire, of copper), 8544.19 (winding wire, other), 8544.20 (co-axial cable and other co-axial electric conductors), 8544.30 (ignition wiring sets and other wiring sets of a kind used in vehicles, aircraft or ships) or 3 others.
Which countries’ tariffs list national lines under HS code 8544.70?
National tariff lines under 8544.70 are live on border.bot for the United States (1 line, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.