What does HTS Chapter 31 cover?

Chapter 31 of the US Harmonized Tariff Schedule covers fertilizers. It contains 5 four-digit headings and 29 tariff lines.

What is the duty rate for Chapter 31 goods?

Duty-free under the general rate. The rate that applies depends on the specific tariff line and the country of origin — preferential trade agreements can reduce or eliminate the general rate.

How do I find the right HTS code in Chapter 31?

Classification depends on the material, construction, and intended use of the product. Browse the headings on this page, or describe your product in the search box to get a candidate code with its duty rate.

Chapter 31

HTS codes for fertilizers

Fertilizers.

Headings: 5
Tariff lines: 29
General duty: Duty-free under the general rate

Headings in Chapter 31

3101Animal or vegetable fertilizers, whether or not mixed together or chemically treated; fertilizers produced by the mixing or chemical treatment of animal or vegetable products1
3102Mineral or chemical fertilizers, nitrogenous11
3103Mineral or chemical fertilizers, phosphatic3
3104Mineral or chemical fertilizers, potassic4
3105Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg10

Documents required to import Chapter 31 goods

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 does HTS Chapter 31 cover?: Chapter 31 of the US Harmonized Tariff Schedule covers fertilizers. It contains 5 four-digit headings and 29 tariff lines.
What is the duty rate for Chapter 31 goods?: Duty-free under the general rate. The rate that applies depends on the specific tariff line and the country of origin — preferential trade agreements can reduce or eliminate the general rate.
How do I find the right HTS code in Chapter 31?: Classification depends on the material, construction, and intended use of the product. Browse the headings on this page, or describe your product in the search box to get a candidate code with its duty rate.