# HS code 3819.00: Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals

> HS code 3819.00 covers hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals. It sits in heading 38.19 (hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals) in chapter 38 (miscellaneous chemical products). It is the only subheading of heading 38.19, so every good of the heading is classified here. National tariff lines under 3819.00 are live on border.bot for the United States (2 lines, also used by 1 other country).

Source: https://border.bot/hs-codes/381900
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 38](https://border.bot/hs-codes/38) / [38.19](https://border.bot/hs-codes/3819) / [3819.00](https://border.bot/hs-codes/381900)

## Key facts

- HS code: 3819.00
- Covers: Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals
- Heading: [38.19: Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals](https://border.bot/hs-codes/3819)
- Chapter: [38: Miscellaneous chemical products](https://border.bot/hs-codes/38)
- Edition: HS2022
- Duty in the United States: [See its 2 lines](https://border.bot/countries/united-states/hs-codes/381900)

## What this code covers

HS code 3819.00 covers hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals.

The legal text of the subheading is “Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals”, in HS2022.

## What it doesn’t cover

It is the only subheading of heading 38.19, so every good of the heading is classified here.

## How it is structured

3819.00 is a six-digit subheading. Its first two digits, 38, are the chapter; the first four, 3819, are heading 38.19; the last two, 00, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 38: Miscellaneous chemical products
- Heading 38.19: Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals
- Subheading 3819.00: Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals

## In other countries

National tariff lines under 3819.00 are live on border.bot for the United States (2 lines, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/381900): 2 lines, used by 1 other country

- Previous subheading: [3818.00](https://border.bot/hs-codes/381800) Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
- Next subheading: [3820.00](https://border.bot/hs-codes/382000) Anti-freezing preparations and prepared de-icing fluids

## Frequently asked questions

### What does HS code 3819.00 cover?

HS code 3819.00 covers hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals.

### Which heading and chapter is HS code 3819.00 in?

HS code 3819.00 is in heading 38.19 (hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals) in chapter 38 (miscellaneous chemical products).

### Where are goods of heading 38.19 classified when 3819.00 doesn’t fit?

3819.00 is the only subheading of heading 38.19, so every good of the heading is classified there.

### Which countries’ tariffs list national lines under HS code 3819.00?

National tariff lines under 3819.00 are live on border.bot for the United States (2 lines, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 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.

Machine-readable: https://border.bot/hs-codes/381900.json