HS Code for NPK Compound Fertilizers
The HS Code for npk compound fertilizers is 310520. The MFN duty rate for importing to the US is Free.
| HS Code (6-digit) | 310520 |
|---|---|
| US Duty Rate (MFN) | Free |
| EU Duty Rate (MFN) | 6.5% |
| Chapter | 31 |
| Heading | 3105 |
| Last Updated | 2026-05 |
Description
Mineral or chemical fertilizers containing nitrogen, phosphorus and potassium
HS Code 310520 covers NPK compound fertilizers with nitrogen, phosphorus, and potassium, and has a US MFN duty rate of Free.
Frequently Asked Questions
What are the major cost factors beyond the product price when importing NPK compound fertilizers under HTS 310520?
Beyond the product price, key costs include antidumping or countervailing duties (AD/CVD), which are frequently applied to NPK fertilizers from countries like Russia, Morocco, and China, and can substantially increase the landed cost. You must also budget for the Merchandise Processing Fee (MPF) and potentially harbor maintenance fees, which are calculated on the entered value of the shipment.
What specific regulatory compliance steps are required for importing NPK compound fertilizer under HTS 310520 into the United States?
Importers must obtain a Fertilizer Import Permit from the USDA's Animal and Plant Health Inspection Service (APHIS) to prevent the introduction of plant pests. Additionally, the product must comply with EPA regulations under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) if it makes pesticidal claims, and must meet any applicable state registration requirements.
What are the specific packaging and labeling requirements for shipping NPK compound fertilizers under HTS 310520 to prevent cargo rejection?
NPK compound fertilizers under HTS 310520 must be shipped in UN-rated, moisture-proof packaging (e.g., UN 1H1 woven polypropylene bags) to prevent caking and hazardous reactions during transit. Labels must clearly display the UN number, proper shipping name 'FERTILIZER, N.O.S.', hazard class 9, and the net weight, as required by the International Maritime Dangerous Goods (IMDG) Code for bulk vessel shipments.
Seasonal Import Patterns for NPK Fertilizers (3105.20)
Imports of NPK compound fertilizers under 3105.20 exhibit strong seasonality, closely tied to the North American and European agricultural calendars. Peak import volumes typically occur in late winter and early spring (Q1), preparing for pre-plant and early-season application. A secondary, smaller surge often happens in late summer (Q3) for fall fertilization of winter crops. U.S. import data shows monthly volumes can vary by over Free between peak and off-peak seasons. Planning logistics and customs clearance during these high-volume windows (February-April) is critical to avoid delays.
Compliance Notes for NPK Compound Fertilizers (3105.20)
Imports of NPK compound fertilizers under 3105.20 are subject to the regulations of the U.S. Environmental Protection Agency (EPA) under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), as they are considered pesticide products when making claims about controlling soil pests or enhancing plant growth. Shipments require proper labeling and may need EPA establishment registration. Additionally, all fertilizers are regulated for safety and efficacy at the state level, requiring compliance with individual state's fertilizer laws, which often mandate registration, labeling with guaranteed analysis (N-P-K), and tonnage reporting. For bulk shipments, be aware of the U.S. Department of Agriculture's (USDA) Animal and Plant Health Inspection Service (APHIS) regulations regarding the potential importation of soil pests or noxious weeds.
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