Analysis
HTS 2814.10.00 covers ammonia, anhydrous or in aqueous solution: anhydrous ammonia under heading 2814 (ammonia, anhydrous or in aqueous solution).
There is no general-rate duty on this line, which puts it with roughly 29% of the 274 tariff lines in chapter 28 that are also free. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
The other line in the same group is 2814.20.00 (ammonia in aqueous solution, duty-free).
Census statistics map these goods to NAICS 325311 (Nitrogenous Fertilizer Manufacturing), an industry of 194 US establishments employing 7,033 people, the industry a domestic producer of these goods reports under.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2814.20.00 | Ammonia in aqueous solution | Free |