Heading 2811
HTS code 2811 — Other inorganic acids and other inorganic oxygen compounds of nonmetals
- Chapter
- 28 — Inorganic chemicals
- Tariff lines
- 13
- General duty
- General duty rates from 2.3% to 4.2%, with 5 duty-free lines
Tariff lines under heading 2811
Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.
| HTS code | Description | General rate | Unit |
|---|---|---|---|
| 2811.11.0000 | Hydrogen fluoride (Hydrofluoric acid) (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic acids) | Free | kg |
| 2811.12.0000 | Hydrogen cyanide (hydrocyanic acid) (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic acids) | 4.2% | kg |
| 2811.19.1000 | Arsenic acid (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic acids > Other) | 2.3% | kg |
| 2811.19.3000 | Hydrobromic acid (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic acids > Other) | Free | kg |
| 2811.19.6110 | Sulfamic acid (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic acids > Other > Other) | 4.2% | kg |
| 2811.19.6190 | Other (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic acids > Other > Other) | 4.2% | kg |
| 2811.21.0000 | Carbon dioxide (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic oxygen compounds of nonmetals) | 3.7% | t |
| 2811.22.1000 | Synthetic silica gel (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic oxygen compounds of nonmetals > Silicon dioxide) | 3.7% | kg |
| 2811.22.5000 | Other (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic oxygen compounds of nonmetals > Silicon dioxide) | Free | kg |
| 2811.29.1000 | Arsenic trioxide (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic oxygen compounds of nonmetals > Other) | Free | kg |
| 2811.29.2000 | Selenium dioxide (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic oxygen compounds of nonmetals > Other) | Free | kg |
| 2811.29.3000 | Sulfur dioxide (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic oxygen compounds of nonmetals > Other) | 4.2% | kg |
| 2811.29.5000 | Other (Other inorganic acids and other inorganic oxygen compounds of nonmetals > Other inorganic oxygen compounds of nonmetals > Other) | 3.7% | kg |
Documents required to import under 2811
Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.
- Commercial InvoiceRequired
- Packing ListRequired
- Bill of Lading / Airway BillRequired
- CBP Entry Summary (7501)Required
Prepared and filed by your customs broker
- CBP Entry / Release (3461)Required
Prepared and filed by your customs broker
- Customs Bond (CBP 301)Conditional
Required for formal entries — generally shipments valued over $2,500
Single-entry or continuous bond, obtained through your broker or a surety
- Importer Security Filing (ISF "10+2")Conditional
Required for ocean freight only
Filed electronically at least 24 hours before loading at the foreign port
- Importer ID Input Record (CBP 5106)Conditional
Required to establish or update your importer-of-record number with CBP
One-time setup for a new importer; not filed per shipment
- Entry Manifest (CBP 7533)Conditional
Alternative to the 3461 for informal, low-value, or contiguous-country entries
- Safety Data Sheet (SDS/MSDS)Required
- EPA TSCA CertificationConditional
Required for chemical substances regulated under TSCA
- EPA Notice of Arrival (Form 3540-1)Conditional
Required for pesticides and devices (typically Ch. 38)
Common questions
- What is HTS code 2811?
- HTS heading 2811 covers other inorganic acids and other inorganic oxygen compounds of nonmetals. It sits in Chapter 28 (inorganic chemicals) of the US Harmonized Tariff Schedule and contains 13 tariff lines.
- What is the duty rate for HTS 2811?
- General duty rates from 2.3% to 4.2%, with 5 duty-free lines. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
- How many digits does a full HTS code have?
- US import entries require the full 10-digit HTS code. Heading 2811 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.
Related headings in Chapter 28
- 2801Fluorine, chlorine, bromine and iodine
- 2802Sulfur, sublimed or precipitated; colloidal sulfur
- 2803Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
- 2804Hydrogen, rare gases and other nonmetals
- 2805Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury
- 2806Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid
- 2807Sulfuric acid; oleum
- 2808Nitric acid; sulfonitric acids