# United States tariff lines under HS 3813.00

> The United States tariff splits HS 3813.00 (preparations and charges for fire-extinguishers; charged fire- extinguishing grenades) into 2 national lines: 3813.00.10.00 (consisting wholly of inorganic substances) and 3813.00.50.00 (other). The general (MFN) duty differs by line: free on 3813.00.10.00 and 3.7% on 3813.00.50.00.

Source: https://border.bot/countries/united-states/hs-codes/381300
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 38](https://border.bot/countries/united-states/hs-codes/38) / [3813.00](https://border.bot/countries/united-states/hs-codes/381300)

## Key facts

- HS subheading: [3813.00](https://border.bot/hs-codes/381300)
- National lines: 2
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 38: Miscellaneous chemical products

## United States lines under 3813.00

The United States tariff splits HS 3813.00 (preparations and charges for fire-extinguishers; charged fire- extinguishing grenades) into 2 national lines: 3813.00.10.00 (consisting wholly of inorganic substances) and 3813.00.50.00 (other).

The general (MFN) duty differs by line: free on 3813.00.10.00 and 3.7% on 3813.00.50.00.

- [3813.00.10.00](https://border.bot/countries/united-states/hs-codes/3813001000) Consisting wholly of inorganic substances. Duty (MFN): free
- [3813.00.50.00](https://border.bot/countries/united-states/hs-codes/3813005000) Other. Duty (MFN): 3.7%

## In other countries

No other national tariff on border.bot has live lines under 3813.00 yet.

- [The Harmonized System text for 3813.00](https://border.bot/hs-codes/381300)

- Previous subheading: [3812.39](https://border.bot/countries/united-states/hs-codes/381239) Other
- Next subheading: [3814.00](https://border.bot/countries/united-states/hs-codes/381400) Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 3813.00?

The United States tariff splits HS 3813.00 (preparations and charges for fire-extinguishers; charged fire- extinguishing grenades) into 2 national lines: 3813.00.10.00 (consisting wholly of inorganic substances) and 3813.00.50.00 (other).

### What is the duty on HS 3813.00 in the United States?

The general (MFN) duty differs by line: free on 3813.00.10.00 and 3.7% on 3813.00.50.00.

## 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/381300.json