# United States tariff line 2845.10.00.00: Heavy water (Deuterium oxide)

> In the United States tariff, line 2845.10.00.00 covers heavy water (Deuterium oxide). Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2845.10 in heading 28.45 (chapter 28).

Source: https://border.bot/countries/united-states/hs-codes/2845100000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 28](https://border.bot/countries/united-states/hs-codes/28) / [2845.10](https://border.bot/countries/united-states/hs-codes/284510) / [2845.10.00.00](https://border.bot/countries/united-states/hs-codes/2845100000)

## Key facts

- Tariff line: 2845.10.00.00
- Covers: Heavy water (Deuterium oxide)
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2845.10](https://border.bot/hs-codes/284510)

## What this line covers

In the United States tariff, line 2845.10.00.00 covers heavy water (Deuterium oxide).

Its legal text is “Heavy water (Deuterium oxide)”.

## How it is structured

It falls under HS subheading 2845.10 in heading 28.45 (chapter 28). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- Heading 28.45: Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined
- Line 2845.10.00.00: Heavy water (Deuterium oxide)

## 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 2845.10 yet.

- [The Harmonized System text for 2845.10](https://border.bot/hs-codes/284510)

- Previous line: [2844.50.00.00](https://border.bot/countries/united-states/hs-codes/2844500000) Spent (irradiated) fuel elements (cartridges) of nuclear reactors
- Next line: [2845.20.00.00](https://border.bot/countries/united-states/hs-codes/2845200000) Boron enriched in boron-10 and its compounds

## Frequently asked questions

### What does tariff line 2845.10.00.00 cover in the United States tariff?

In the United States tariff, line 2845.10.00.00 covers heavy water (Deuterium oxide).

### What is the general (MFN) duty on 2845.10.00.00 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/2845100000.json