Analysis
Heading 2834 of the Harmonized Tariff Schedule covers nitrites; nitrates. It divides into 3 six-digit subheadings and 7 eight-digit tariff lines, with 7 ten-digit statistical suffixes below them.
2 of its 7 lines with a percentage rate are duty-free at the general rate (29%) and 5 are dutiable, from duty-free up to 5.5%. The median line pays 3.5%.
The spread of 5.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 5.5%, applies to 2834.10.10 (nitrites: of sodium) and 2834.29.05 (other: of bismuth).
The largest subheadings are 2834.29 (other, 4 lines), 2834.10 (nitrites, 2 lines) and 2834.21 (unnamed, 1 line).
By Census's concordance, most of its statistical lines are made by Other Basic Inorganic Chemical Manufacturing (325180). Those are the NAICS industries a US producer of these goods would report under.
Its median rate of 3.5% sits at the 56th percentile of the headings in chapter 28.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 2834.10.10 | Nitrites: of sodium | 5.5% |
| 2834.10.50 | Nitrites: other | 3.1% |
| 2834.21.00 | Nitrates: of potassium | Free |
| 2834.29.05 | Other: of bismuth | 5.5% |
| 2834.29.10 | Other: of calcium | Free |
| 2834.29.20 | Other: of strontium | 4.2% |
| 2834.29.51 | Other: other | 3.5% |