HTS 31021000 — Urea, whether or not in aqueous solution
Imports classified under 31021000 — part of heading 3102, Mineral or chemical fertilizers, nitrogenous, in Chapter 31 (Fertilizers). For this line, duty-free general treatment applies. No special-program overrides are listed for this line.
Tariff rates for 31021000
| Rate type | Rate | Notes |
|---|---|---|
| General (Column 1) | Free | Applies to countries without a preferential agreement (specific or compound basis). |
| Special | — | Reduced or free rates for designated program countries (see code legend on the USITC site). |
| Column 2 | Free | Statutory rate applied to the few economies without normal-trade-relations status. |
Reporting units
Entry summaries for 31021000 must be declared in: No. (No. = number of units). A single quantitative measure accompanies the ad valorem component on the entry summary.
Statistical breakouts under 31021000
| Line | Description | General rate |
|---|---|---|
| 3102.10.00.10 | Solid urea | Free |
| 3102.10.00.30 | Diesel exhaust fluid (DEF) of a kind meeting ISO 22241 | Free |
| 3102.10.00.50 | Other | Free |
Statistical suffixes refine classification within the same duty treatment; pick the breakout whose wording matches your goods most precisely.
Frequently asked questions
Is there a Section 301 tariff on 31021000?
Section 301 actions apply by exact HTS line. This page shows the permanent schedule rate (Free) for 31021000; check the current 301 annexes or our dedicated Section 301 tariffs guide to see whether trade-remedy duties stack on top for your origin country.
What unit is used to declare 31021000?
US Customs declares 31021000 using the reporting unit(s) “No.” (No. = number of units). When several units apply, each is reported on entry documents and may drive different ad-valorem-equivalent treatment.
Does 31021000 qualify for a free or reduced rate?
No preferential-program overrides are listed for this line in the schedule extract above; some programs may still apply, so verify against the USITC special-rate legend before claiming preference.
Related pages & tools
Data as of October 9, 2026 · Source: USITC Harmonized Tariff Schedule (line 3102.10.00). Rates are informational and not a binding customs ruling.