90

Official Chapter Guide

Optical, photographic, measuring, and medical instruments and accessories, excluding general-use items and specific appliances.

Tariff Landscape

Items are often duty-free, especially specialized medical devices, but ensure precise classification to avoid errors.
Be aware of potential implications if components are sourced from regions impacted by Section 301 tariffs.
ADD/CVD risks generally low for these articles, but stay updated on specific additive cases on optical components.

Common error: Misclassifying general-use items as specialized instruments falling under Chapter 90.
Complexity lies in distinguishing between optical elements vs purely optical instruments.
Parts and accessories should be diligently matched to their equipment to avoid misclassification under incorrect headings.

Excludes items of vulcanized rubber, leather, textile suitable for machines, non-optical glass mirrors, and mirrors of metal.
Refractory goods, laboratory ceramic wares, and general-use metal or plastic parts are excluded.
Specific electronic items such as sound recording apparatus, optical fiber connectors, and electrical lamps are excluded.
Orthopedic appliances include those preventing/correcting deformities or supporting post-illness operation injuries.
Defines optical instruments as those with essential optical elements, excluding those for viewing scales.
Measurement and control devices for fluids and gases must be automatic and adjust based on stabilization criteria.

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