Tariff Calculator
Provisions by Authority
GET
/v1/tariffs/provisions/{authority}$0.01 per callFilter tariff provisions by authority type.
Parameters
| Name | In | Type | Description |
|---|---|---|---|
| authorityrequired | path | string | one of "SECTION_301", "SECTION_232", "SECTION_122", "IEEPA", "SAFEGUARD" |
Response fields
| Field | Type | Description |
|---|---|---|
| success | boolean | e.g. true |
| data | object | |
| data.authority | string | e.g. SECTION_301 |
| data.totalProvisions | number | e.g. 83 |
| data.provisions | array | |
| data.provisions[].id | string | e.g. cmmxzu6uw00j901b65gbn35d5 |
| data.provisions[].provisionCode | string | e.g. 9903.91.16 |
| data.provisions[].authority | string | e.g. SECTION_301 |
| data.provisions[].description | string | e.g. Notwithstanding heading 9903.91.14, effective with respect to… |
| data.provisions[].additionalDutyRate | string | e.g. The duty provided in the applicable subheading |
| data.provisions[].rateType | string | e.g. COMPLEX |
| data.provisions[].applicableCountries | array | |
| data.provisions[].applicableHtsPrefixes | array | |
| data.provisions[].exemptHtsPrefixes | array | |
| data.provisions[].effectiveDate | string | e.g. 2026-03-19T21:40:00.440Z |
| data.provisions[].expirationDate | null | |
| data.provisions[].proclamationRef | null | |
| data.provisions[].sourceUrl | string | e.g. https://www.usitc.gov/sites/default/files/tata/hts |
| data.provisions[].notes | string | e.g. Auto-imported from USITC Chapter 99 archive |
| data.provisions[].lastVerified | string | e.g. 2026-10-28T15:18:26.166Z |
| data.provisions[].createdAt | string | e.g. 2026-03-19T21:40:00.440Z |
| data.provisions[].updatedAt | string | e.g. 2026-10-28T15:18:26.166Z |
| meta | object | |
| meta.dataSource | object | |
| meta.dataSource.name | string | e.g. ComplianceGrid |
| meta.dataSource.provenance | string | e.g. computed |
Fields are read from a real response captured 2026-11-04, shortened. Optional fields may be absent in other responses.
Errors
- 400 invalid request
- 401 missing or bad key
- 403 not in your plan
- 429 rate limited, see Retry-After
- 402 payment required
- 5xx retry with backoff
Error bodies and codes are described in Error codes and troubleshooting.