# United States tariff lines under HS 3501.10

> The United States tariff splits HS 3501.10 (casein) into 2 national lines: 3501.10.10.00 (milk protein concentrate) and 3501.10.50.00 (other). The general (MFN) duty differs by line: 0.37¢/kg on 3501.10.10.00 and free on 3501.10.50.00.

Source: https://border.bot/countries/united-states/hs-codes/350110
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 35](https://border.bot/countries/united-states/hs-codes/35) / [3501.10](https://border.bot/countries/united-states/hs-codes/350110)

## Key facts

- HS subheading: [3501.10](https://border.bot/hs-codes/350110)
- National lines: 2
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 35: Albuminoidal substances; modified starches; glues; enzymes

## United States lines under 3501.10

The United States tariff splits HS 3501.10 (casein) into 2 national lines: 3501.10.10.00 (milk protein concentrate) and 3501.10.50.00 (other).

The general (MFN) duty differs by line: 0.37¢/kg on 3501.10.10.00 and free on 3501.10.50.00.

- [3501.10.10.00](https://border.bot/countries/united-states/hs-codes/3501101000) Casein, Milk protein concentrate. Duty (MFN): 0.37¢/kg
- [3501.10.50.00](https://border.bot/countries/united-states/hs-codes/3501105000) Casein, Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 3501.10 yet.

- [The Harmonized System text for 3501.10](https://border.bot/hs-codes/350110)

- Previous subheading: [3407.00](https://border.bot/countries/united-states/hs-codes/340700) Modeling pastes, including those put up for children's amusement; preparations known as "dental wax" or as "dental impression compounds", put up in sets, in packings for retail sale or in plates, horseshoe shapes, sticks or similar forms; other preparations for use in dentistry, with a basis of plaster (of calcined gypsum or calcium sulfate)
- Next subheading: [3501.90](https://border.bot/countries/united-states/hs-codes/350190) Other

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 3501.10?

The United States tariff splits HS 3501.10 (casein) into 2 national lines: 3501.10.10.00 (milk protein concentrate) and 3501.10.50.00 (other).

### What is the duty on HS 3501.10 in the United States?

The general (MFN) duty differs by line: 0.37¢/kg on 3501.10.10.00 and free on 3501.10.50.00.

## 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/350110.json