# United States tariff line 3914.00.20.00: Cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP)

> In the United States tariff, line 3914.00.20.00 covers cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP). Goods under this line enter free of general (MFN) duty. It falls under HS subheading 3914.00 in heading 39.14 (chapter 39).

Source: https://border.bot/countries/united-states/hs-codes/3914002000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 39](https://border.bot/countries/united-states/hs-codes/39) / [3914.00](https://border.bot/countries/united-states/hs-codes/391400) / [3914.00.20.00](https://border.bot/countries/united-states/hs-codes/3914002000)

## Key facts

- Tariff line: 3914.00.20.00
- Covers: Cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP)
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [3914.00](https://border.bot/hs-codes/391400)

## What this line covers

In the United States tariff, line 3914.00.20.00 covers cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP).

Its legal text is “Cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP)”.

## How it is structured

It falls under HS subheading 3914.00 in heading 39.14 (chapter 39). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 39: Plastics and articles thereof
- Heading 39.14: Ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms
- Line 3914.00.20.00: Cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP)

## 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 3914.00 yet.

- [The Harmonized System text for 3914.00](https://border.bot/hs-codes/391400)

## Other lines under 3914.00

- [3914.00.60.00](https://border.bot/countries/united-states/hs-codes/3914006000) Other

- Previous line: [3913.90.50.00](https://border.bot/countries/united-states/hs-codes/3913905000) Other
- Next line: [3914.00.60.00](https://border.bot/countries/united-states/hs-codes/3914006000) Other

## Frequently asked questions

### What does tariff line 3914.00.20.00 cover in the United States tariff?

In the United States tariff, line 3914.00.20.00 covers cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP).

### What is the general (MFN) duty on 3914.00.20.00 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/3914002000.json