# HTS 9902.11.91: Plug-type closures of polyethylene, suitable for use in capping specimen tubes and measuring 15 mm in length; each closure having an upper portion designed to extend beyond the specimen tube to permit holding of the closure, such upper portion having a diameter of 15.5 mm and thickness of 3.3 mm and having a notched groove; with the bottom portion of such closure designed for insertion into a specimen tube having a diameter measuring approximately 11.7 mm; the foregoing closures certified by the importer as for use in an automated insertion system (provided for in subheading 3923.50.00)

> Plain-language tariff reference from the USITC Harmonized Tariff Schedule on [PlainTariff](https://plaintariff.com/).

## Duty rates

- **General (MFN) rate:** Free
- **Special / FTA rate:** No change
- **Column 2 rate:** No change
- **Corpus rank:** #5352 of 5979 among duty-free tariff lines

## Classification path

- **Section XXII:** [Special Classification Provisions](https://plaintariff.com/section/xxii-special-classification-provisions)
- **HTS code:** 9902.11.91

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/99021191-plug-type-closures-of-polyethylene-suitable-for-use-in-capp*