Analysis
HTS 3813.00.10 covers consisting wholly of inorganic substances under heading 3813 (preparations and charges for fire extinguishers; charged fire-extinguishing grenades).
Neighbouring lines carry rates from 3.7% to 3.7%, so the exact line matters. The widest gap is with 3813.00.50 (preparations and charges for fire extinguishers; charged…), at 3.7%: a product that belongs there but is entered here, or the reverse, changes the duty by 3.7 percentage points.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 25% of the 179 tariff lines in chapter 38. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
Goods from countries without normal trade relations pay the column 2 rate of 25% instead of nothing, so origin decides between free entry and a 25% duty.
The other line in the same group is 3813.00.50 (preparations and charges for fire extinguishers; charged…, 3.7%).
Census statistics map these goods to NAICS 325998 (All Other Miscellaneous Chemical Product and Preparation Manufacturing), an industry of 1,319 US establishments employing 42,583 people. That is the industry code a US manufacturer of the same product would normally use.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 3813.00.50 | Preparations and charges for fire extinguishers; charged fire-extinguishing grenades: other | 3.7% |