US Harmonized Tariff Schedule (HTSUS) chapter overview, Section 301 China List 1
US Harmonized Tariff Schedule (HTSUS) chapter overview, Section 301 China List 1-4A additional duty bands, PGA agency flags (FDA, FCC, CPSC, TSCA, Lacey Act), and 19 USC 1304 Country of Origin marking checklist. Pass ?chapter=85_electronics|39_plastics|62_apparel|94_furniture|95_toys&origin=CN. Educational reference only; not legal advice.
Answeringour last check, 2026-10-26
1 of 1checks answered this week
181 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://x402-niche-briefs.fly.dev/v1/hs-tariff-section301-brief
| Category | Everything else |
|---|---|
| Provider host | x402-niche-briefs.fly.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-26 | valid payment request | 402 | $0.01 | 181 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"chapter": "85_electronics",
"origin": "CN"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"chapter": {
"description": "HTSUS chapter group",
"enum": [
"85_electronics",
"39_plastics",
"62_apparel",
"94_furniture",
"95_toys"
],
"type": "string"
},
"origin": {
"description": "ISO country of origin code (e.g. CN, VN, MX)",
"type": "string"
}
},
"required": [
"chapter",
"origin"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"as_of": {
"type": "string"
},
"chapter": {
"type": "string"
},
"chapter_title": {
"type": "string"
},
"country_of_origin": {
"type": "string"
},
"customs_compliance_checklist": {
"items": {
"type": "string"
},
"type": "array"
},
"disclaimer": {
"type": "string"
},
"key_classification_drivers": {
"items": {
"type": "string"
},
"type": "array"
},
"pga_agency_flags": {
"items": {
"type": "string"
},
"type": "array"
},
"section_301_applicable": {
"type": "boolean"
},
"section_301_summary": {
"type": "string"
},
"typical_mfn_base_duty_range": {
"type": "string"
}
},
"required": [
"as_of",
"chapter",
"country_of_origin",
"chapter_title",
"typical_mfn_base_duty_range",
"section_301_applicable",
"section_301_summary",
"key_classification_drivers",
"pga_agency_flags",
"customs_compliance_checklist",
"disclaimer"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}