Tariffs API
HTS 0406.90.31.00 Tariff
HTS 0406.90.31.00 classifies "Described in additional U.S. note 21 to this chapter and entered pursuant to its provisions" in the US Harmonized Tariff Schedule. Base duty rates below apply to most trade; country of origin can change applicable rates and add additional duties (e.g. Section 301). Use the calculator or API to compute total duty.
- Type: Base HTS
- How to use: Base rates apply to most countries (General/Special). Column 2 applies to non-MFN countries. Additional duties (Section 301, 232, IEEPA) may apply by origin; use the calculator or resolve API to get the full picture.
Related explainers:
Official HTS Description
Official product classification and description from the Harmonized Tariff Schedule
Product Name
Described in additional U.S. note 21 to this chapter and entered pursuant to its provisions
HTS Schedule Description
Described in additional U.S. note 21 to this chapter and entered pursuant to its provisions
Additional Description
Described in additional U.S. note 21 to this chapter and entered pursuant to its provisions
HS Code
0406.90.31.00
HTS Number
0406.90.31.00
Unit of Quantity
kg
Classification Level
Level 5 (more specific = higher level)
Legal Notes & Requirements
Important footnotes and legal requirements for this HTS classification
See 9903.88.15.
Additional Duties (Section 301, 232, etc.)
Country-specific additional tariffs separate from base rates
Section 301 Uncertain
Trade remedies targeting specific countries
See 9903.88.15
Note: Rate not specified in source. Research Chapter 99 code for exact rate.
Applies to: CN
Effective date unknown
Confidence: High (Authority could not be determined from text; manual classification needed; Tariff measure applies to products of China with specific exclusions listed)
See 9903.88.15
Note: Rate not specified in source. Research Chapter 99 code for exact rate.
Applies to: CN
Effective date unknown
Confidence: High (Authority could not be determined from text; manual classification needed; Applies to articles from China with specific exclusions listed)
See 9903.88.15
Note: Rate not specified in source. Research Chapter 99 code for exact rate.
Applies to: CN
Effective date unknown
Confidence: High (Authority could not be determined from text; manual classification needed; Tariff measure applies to products of China with specific exclusions listed)
See 9903.88.15
Note: Rate not specified in source. Research Chapter 99 code for exact rate.
Applies to: CN
Effective date unknown
Confidence: High (Authority could not be determined from text; manual classification needed; Tariff measure applies to products of China, with exceptions listed in other headings.)
Unknown Additional Duty Uncertain
Additional trade measures
Tip: Select a country of origin above to see which measures apply.
Related HTS Codes
Other codes in the same chapter ( 0406)
Showing up to 12 related codes. Search all HTS codes for more.
Frequently Asked Questions
This is a US Harmonized Tariff Schedule (HTS) code that classifies "Described in additional U.S. note 21 to this chapter and entered pursuant to its provisions". It determines base duty rates for imports; additional duties may apply by country of origin.
Yes. General and Special rates apply by trade agreement and origin. Additional duties (Section 301, 232, IEEPA) are origin-specific. Use the tariff calculator or resolve API with an origin to see full duty.
Use our tariff calculator (with HTS and optional origin) or the API endpoint GET /api/v1/tariffs/resolve with hts and origin. The API returns base tariffs and additional measures separately; sum as needed for your use case.
Duty rates (HTS columns)
Base duty rates and agreement-specific tariffs for this product
Column 1 - General
Normal Trade Relations (NTR/MFN) rates for most countries
25%
Effective: February 27, 2026
Column 1 - Special
No special rate available
Column 2
Higher rates for non-MFN countries
35%
Effective: February 27, 2026