# United States tariff line 9027.90.68.00: Other > In the United States tariff, line 9027.90.68.00 covers microtomes; parts and accessories, parts and accessories, of optical instruments and apparatus. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 9027.90 in heading 90.27 (chapter 90). Source: https://border.bot/countries/united-states/hs-codes/9027906800 Last updated: 9 October 2026 [Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 90](https://border.bot/countries/united-states/hs-codes/90) / [9027.90](https://border.bot/countries/united-states/hs-codes/902790) / [9027.90.68.00](https://border.bot/countries/united-states/hs-codes/9027906800) ## Key facts - Tariff line: 9027.90.68.00 - Covers: Microtomes; parts and accessories, parts and accessories, of optical instruments and apparatus - Duty (MFN): Free - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [9027.90](https://border.bot/hs-codes/902790) ## What this line covers In the United States tariff, line 9027.90.68.00 covers microtomes; parts and accessories, parts and accessories, of optical instruments and apparatus. Its legal text is “Other”, read under “Microtomes; parts and accessories”, “Parts and accessories”, “Other” and “Of optical instruments and apparatus”. ## How it is structured It falls under HS subheading 9027.90 in heading 90.27 (chapter 90). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff. - Chapter 90: Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof - Heading 90.27: Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof - Subheading 9027.90: Microtomes; parts and accessories - Within the subheading: Parts and accessories - Within the subheading: Other - Within the subheading: Of optical instruments and apparatus - Line 9027.90.68.00: Other ## Duty Goods under this line enter free of general (MFN) duty. ## In other countries No other national tariff on border.bot has live lines under 9027.90 yet. - [The Harmonized System text for 9027.90](https://border.bot/hs-codes/902790) ## Other lines under 9027.90 - [9027.90.20.00](https://border.bot/countries/united-states/hs-codes/9027902000) Microtomes - [9027.90.45.00](https://border.bot/countries/united-states/hs-codes/9027904500) Printed circuit assemblies for the goods of subheading 9027.81 or 9027.89 - [9027.90.54.00](https://border.bot/countries/united-states/hs-codes/9027905400) Of electrophoresis instruments not incorporating an optical or other measuring device - [9027.90.56.25](https://border.bot/countries/united-states/hs-codes/9027905625) Of articles of subheading 9027.20.50 - [9027.90.56.30](https://border.bot/countries/united-states/hs-codes/9027905630) Of articles of subheading 9027.30.40 - [9027.90.56.40](https://border.bot/countries/united-states/hs-codes/9027905640) Of articles of subheading 9027.50.10 - [9027.90.56.50](https://border.bot/countries/united-states/hs-codes/9027905650) Of articles of subheading 9027.50.40 - [9027.90.56.95](https://border.bot/countries/united-states/hs-codes/9027905695) Other - [9027.90.59.10](https://border.bot/countries/united-states/hs-codes/9027905910) Of articles of subheading 9027.10.20 - [9027.90.59.95](https://border.bot/countries/united-states/hs-codes/9027905995) Other - [9027.90.64.00](https://border.bot/countries/united-states/hs-codes/9027906400) Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 - [9027.90.84.00](https://border.bot/countries/united-states/hs-codes/9027908400) Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 - [9027.90.88.00](https://border.bot/countries/united-states/hs-codes/9027908800) Other - Previous line: [9027.90.64.00](https://border.bot/countries/united-states/hs-codes/9027906400) Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 - Next line: [9027.90.84.00](https://border.bot/countries/united-states/hs-codes/9027908400) Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 ## Frequently asked questions ### What does tariff line 9027.90.68.00 cover in the United States tariff? In the United States tariff, line 9027.90.68.00 covers microtomes; parts and accessories, parts and accessories, of optical instruments and apparatus. ### What is the general (MFN) duty on 9027.90.68.00 in the United States? Goods under this line enter free of general (MFN) duty. ## Sources and updates The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. This page was last updated on 9 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. Official source files: - https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false Machine-readable: https://border.bot/countries/united-states/hs-codes/9027906800.json