Which quota applies to 4-core single-mode fiber optic cables

4-core single-mode fiber optic cables are generally classified under HS Code 8544.70, which governs optical fiber cables, and may be subject to specific import quotas depending on the country.

HS Code and Quota Information

Harmonized System (HS) Code: 4-core single-mode fiber optic cables typically fall under HS 8544.70, which covers "Insulated (including enamelled or anodized) wire, cable (including coaxial cable) and other insulated electric conductors, optical fiber cables" used for telecommunications and data transmission . Quota Application:

• Import quotas for fiber optic cables vary by country and are often set to regulate the volume of high-tech telecommunications equipment.
• Some countries may require licensing or pre-approval for importing optical fiber cables, especially for single-mode types used in backbone networks or FTTH/GPON deployments .
• Quotas may also depend on cable core count, with 4-core cables considered medium-scale and often included in general optical fiber cable quotas rather than high-capacity multi-core categories .

Technical Context

A 4-core single-mode fiber optic cable consists of four individual optical fibers, each capable of transmitting data independently over long distances (>100 km) with minimal attenuation. These cables are commonly used for:

• FTTH (Fiber to the Home) connections
• GPON (Gigabit Passive Optical Networks)
• Medium-scale backbone or campus networks The single-mode design ensures high-quality long-distance transmission, while the 4-core configuration provides redundancy and scalability without the complexity of higher-core-count cables .

Practical Considerations

• When importing, check the national customs tariff schedule to confirm the exact HS code and any applicable quotas.
• Ensure compliance with international standards such as ITU-T G.652.D for single-mode fiber performance .
• Some countries may require certifications or testing reports to meet quality and safety standards before import . In summary, 4-core single-mode fiber optic cables are generally classified under HS 8544.70, and any quota or import restriction will depend on the specific regulations of the importing country, often linked to telecommunications infrastructure control and safety standards .