Section 301 Tariffs on China: Complete HTS Code Lookup

Check if your product is subject to additional duties under Section 301. Search across 10,562 affected HTS codes with exact rates and provision numbers.

Last updated: March 2026. Data sourced from USITC HTS Schedule, Chapter 99 provisions.

What are Section 301 tariffs?

Section 301 of the Trade Act of 1974 allows the U.S. Trade Representative (USTR) to impose additional tariffs on imports from countries engaged in unfair trade practices. Since 2018, the U.S. has imposed Section 301 tariffs on hundreds of billions of dollars worth of Chinese goods across four "Lists."

These duties are in addition to the normal MFN (Most Favored Nation) duty rate. A product with a base rate of "Free" could actually face 25% or more in total duties when imported from China.

The four Section 301 lists

The hidden data source most people don't know about

Most importers think you need a separate database or USTR list to check Section 301 status. You don't. The USITC already cross-references every affected code via Chapter 99 footnotes in the official HTS schedule.

When you look up an HTS code in the USITC data, its footnotes say things like "See 9903.88.15". That provision number IS the Section 301 reference — it defines the additional rate and which country it applies to. The data has been there all along, in the same API that serves the tariff schedule itself. Nobody else publishes this as a searchable lookup.

We parsed every footnote across all 26,118 HTS codes. Result: 10,562 codes have at least one Chapter 99 reference, spanning 712 distinct provisions.

How to check if your product is affected

Using this page

Enter any HTS code above (4 to 10 digits). We'll check if it or any of its parent codes have Chapter 99 footnotes indicating Section 301, Section 232, or reciprocal tariff provisions.

Using the API

The HTS API returns Section 301/232 duties automatically in every /classify response when you provide a country_of_origin:

curl -X POST https://htsapi.dev/v1/classify \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_KEY" \
  -d '{"description": "men cotton t-shirt", "country_of_origin": "China"}'

# Response includes census_duties with rate provision breakdown:
# "census_duties": {
#   "country": "CHINA",
#   "total_effective_rate_pct": 34.0,
#   "breakdown": [
#     {"rp_code": "69", "rp_label": "Additional tariffs (Section 301/232/reciprocal)", "effective_rate_pct": 38.6}
#   ]
# }

Common product categories and their Section 301 status

What about exclusions?

You may have heard that USTR grants "exclusions" from Section 301 tariffs. This is a common source of confusion. Here's what it actually means:

Exclusions are product-specific, not HTS-code-specific. When USTR grants an exclusion, it exempts a specific product from a specific manufacturer — not the entire HTS code. For example, "Company X's model Y widget" might be excluded from Section 301, but all other widgets under that same HTS code remain subject to the tariff.

This means: if your HTS code has a Section 301 footnote, the tariff applies to your product unless you've specifically applied for and received an exclusion from USTR. The code-level lookup on this page is correct — it tells you whether the code is on a list, which is the starting point for any exclusion analysis.

What if my product isn't on any list?

If an HTS code has no Chapter 99 footnotes for Section 301, it's not subject to additional duties under that authority — for now. USTR can modify the lists at any time via Federal Register notices.

Note that even if a product isn't on Section 301, it may still be subject to:

• Section 232 — Additional duties on steel (25%), aluminum (25%), and derivatives
• Reciprocal tariffs — Broad country-specific tariffs under various authorities
• AD/CVD duties — Anti-dumping and countervailing duties on specific products from specific countries

Data source and methodology

This data comes from the official USITC HTS Schedule REST API. Each HTS code's footnotes are parsed for Chapter 99 cross-references (e.g., "See 9903.88.15"). The referenced provisions are fetched from the same API with parsed duty rates, country applicability, and authority classification.

We track 712 Chapter 99 provisions across 9903.01–9903.99 (exhaustive coverage), covering 10,562 HTS codes with at least one additional duty footnote. Data refreshes automatically when USITC publishes a new HTS revision (approximately monthly).