Tandom · Duty calculator
Add country and invoice value for the full duty stack — base + 301 + 232 + AD/CVD + fees.
HTS 3101.00.00.00 is the U.S. Harmonized Tariff Schedule classification for Animal or vegetable fertilizers, whether or not mixed together or chemically treated; fertilizers produced by the mixing or chemical treatment of animal or vegetable products. It's a 10-digit statistical line in Chapter 31: Fertilizers, Section VI: Products of the Chemical or Allied Industries, used by U.S. Customs and Border Protection to determine the duty rate at entry. No Chapter 99 tariff modifications (Section 301, Section 232, IEEPA) or AD/CVD orders currently flag this code in Tandom's catalog.
New to HTS codes? Read our guide on how HTS classification works →
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification of Amino Acid Fertilizer from China
The tariff classification of “Fossilized Seabird Guano” from Mexico
The tariff classification of “Feather Meal” from Argentina
The tariff classification of “HYTb” from Mexico
The tariff classification of “Bio Grow,” “Bio Bloom,” “Bio Heaven,” “Fish Mix,” and “Root Juice” from the Netherlands
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 3101.00.00.00 is the U.S. Harmonized Tariff Schedule classification for Animal or vegetable fertilizers, whether or not mixed together or chemically treated; fertilizers produced by the mixing or chemical treatment of animal or vegetable products. It belongs to Chapter 31 of the HTSUS.
The general (Column 1) duty rate for HTS 3101.00.00.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
No active Chapter 99 tariff overlays (Section 301, Section 232, IEEPA reciprocal, etc.) currently flag HTS 3101.00.00.00 in Tandom's catalog. Use the calculator's date + origin inputs to confirm against any retroactive overlay you may be filing.
No active AD/CVD orders currently flag HTS 3101.00.00.00 in Tandom's catalog. Tandom monitors Federal Register notices daily; a flag will appear here within 24h of any new order's publication.
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