Enter a 10-digit HTS line, the country of origin and the entry date to see the base rate, 301 / 232 / 201 / 338 additional duties, AD/CVD deposits, PGA flags and other requirements, with a confirmed total and a maximum.
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Goods entered under a 232 heading (AUTOS) are exempt from the forced-labor 301 duty (note 52(f))
8-digit subheading 8537.10.91 is on L3
Gas ignition safety controls, measuring 3.8 to 5.3 cm in height, 6.4 to 10.1 cm in width and 13.2 to 13.9 cm in depth; weighing 160 g to 380 g each; and valued not over $26 each; of a kind used in patio heaters, agricultural heaters or clothes dryers — only the products described; expires 2026-11-09 11:59 p.m. EDT
General (all other countries) | Automobile parts (Note 33(g) list: engines, transmissions, powertrain parts, electrical components, etc.)
General (all other countries) | Unmanned aircraft, drone docking stations and parts thereof
may-be-required only · ACE valid to 2039-12-31
no entered value: rates and limits only
Period 2026-10-01 – 2027-09-30 · 91 FR 48398 (2026-07-31, Doc. 2026-15530, FY2027)
Chinese origin: the UFLPA presumption is triggered through the supply chain (Xinjiang inputs / Entity List), not by country of origin; the origins with the most CBP denials are MY / VN / TH.
Not in a UFLPA priority sector, and no WRO or Finding applies to this origin. The UFLPA presumption still applies through the supply chain (Xinjiang content or listed entities).
Devices with RF functions need an FCC ID (Certification) or SDoC before import / marketing (for foreign manufacturers the U.S. importer is the responsible party). Covered List equipment cannot be authorized. Form 740 was eliminated on 2017-11-02.
2025–26: "Bad labs" rule FCC 25-27 (effective 2025-09-08, 10% ownership threshold, 15 Chinese labs de-recognized); FCC 25-71 (effective 2025-12-26): a covered modular transmitter makes the host device covered too; 2025-12-22 DA 25-1086 added all foreign-produced UAS and critical components to the Covered List (DA 26-22: Blue UAS / >65% U.S. content exempt until 2027-01-01; no exemption for DJI / Autel); 2026-03-23 DA 26-278 added foreign-produced consumer routers (some models conditionally approved, DA 26-585); 2026-06-26 DA 26-635 (effective 2026-07-16): previously authorized Huawei / ZTE / Kaspersky equipment may no longer be imported or sold; 2026-07-28 DA 26-786 added foreign-produced grid-tied inverters and advanced robots (DA 26-870 on 2026-08-20 narrowed inverters to UL 1741 grid-tied inverters with or capable of a communications module; §45X / 48 CFR 25.101 compliant products exempt; software-update waiver DA 26-789 until 2029-01-01); FCC 26-50 (91 FR 57798, effective 2026-10-13): equipment containing "logic components" from Covered List companies cannot be authorized, and e-commerce platforms must display the FCC ID (compliance 2027-03-01 / 06-01)
No new FCC equipment authorization for any foreign-produced UAS or UAS critical component (new models/FCC IDs) since 2025-12-22 (47 CFR 2.903); new devices incorporating covered modular transmitters also barred. Importation of a new-model foreign drone requiring certification is therefore impossible under 2.1204(a)(1). DJI/Autel equipment covered by name via NDAA sec. 1709 regardless of production location. Components that do not themselves require FCC authorization (e.g., bare motors, batteries) are "covered" but the practical FCC consequence attaches at authorization of the UAS/host device (TBD_ FCC has not issued component-level import guidance). | By product category (restricted when produced abroad; check the exemption conditions)
Exemptions: Until 2027-01-01: (a) DCMA Blue UAS Cleared List items; (b) items qualifying as Buy American "domestic end products" (48 CFR 25.101(a): manufactured in U.S. with >65% domestic component cost through 2028, 75% from 2029). Indefinite: DoW/DHS Conditional Approvals (apply via conditional-approvals@fcc.gov; onshoring plan, ownership, BOM). Federal-government purchases unaffected. DJI/Autel excluded from all exemptions [S]. 2.1204(a)(3)-(a)(11) import conditions do not create an authorization.
Before arrival: Foreign facility registration (FEI / registration number); designate the FSVP importer (name + DUNS); submit and confirm Prior Notice in advance (road 2 hours / air and rail 4 hours / ocean 8 hours)
At entry: FDA / FOO message set: product code, manufacturer, shipper, grower, country of production, FSVP importer DUNS, AofC codes; PN confirmation number
Disclaim: FD1 / FD3: only code A (B rejected since 2020-04-18); FD2 / FD4 cannot be disclaimed
If missing: Missing PN → refusal under 801(m) / hold at port; missing 801(a) data → entry rejected / FDA hold
2025–26: PN final rule effective 2025-10-27 (resubmit within 10 days after refusal; mail tracking number from 2026-10-01); FSMA 204 traceability compliance postponed to 2028-07-20; Supplemental Guide v2.5.13 (2025-09)
https://www.fda.gov/industry/import-basics/harmonized-tariff-schedule-and-fd-flags · Verification H
Before arrival: Drug establishment registration and listing (NDC), NDA / ANDA; importer FEI / DUNS
At entry: FDA / DRU message set: product code, manufacturer, FDA importer, intended-use code (required), DA / DLS / REG AofC
Disclaim: FD1: only code A; FD2 cannot be disclaimed
If missing: Entry rejected / FDA hold
https://www.fda.gov/media/186046/download · Verification H
Before arrival: Establishment registration and device listing; 510(k) / PMA number; initial importer registration
At entry: DEV / DFE / LST AofC required; PM# (510(k) / PMA); intended-use code
Disclaim: FD1: only code A; FD2 cannot be disclaimed
If missing: Entry rejected / hold
https://www.fda.gov/media/186046/download · Verification H
Before arrival: BLN / STN license, establishment registration, HCT/P registration
At entry: BIO message set: BLN/STN, REG, IND, HCT/HRN AofC
Disclaim: FD1: only code A; FD2 cannot be disclaimed
If missing: Entry rejected / hold
https://www.fda.gov/media/186046/download · Verification H
Before arrival: MoCRA facility registration / product listing (FEI)
At entry: Product code, manufacturer, FDA importer, country of production
Disclaim: FD1: only code A; FD2 cannot be disclaimed
If missing: Entry rejected / hold
https://www.fda.gov/media/186046/download · Verification H
Before arrival: Product report / accession number; FDA 2877 declaration code
At entry: RA1–RA7 / RB / RC / RD AofC; product name
Disclaim: FD1: only code A; FD2 cannot be disclaimed
If missing: Entry rejected / hold
https://www.fda.gov/media/186046/download · Verification H
Before arrival: Manufacturer registration / listing; marketing authorization (PMTA / SE) status
At entry: Product name, intended-use code; PMT / SE / EXE AofC
Disclaim: FD1: only code A; FD2 cannot be disclaimed
If missing: Entry rejected / hold
https://www.fda.gov/media/186046/download · Verification H
Before arrival: NADA / ANADA, drug listing (NDC), establishment registration
At entry: VME message set: NDC, REG, VAN/VNA AofC
Disclaim: FD1: only code A; FD2 cannot be disclaimed
If missing: Entry rejected / hold
https://www.fda.gov/media/186046/download · Verification H
| A | B | Relation | Rule | Basis |
|---|---|---|---|---|
| FL301 | BASE | stack | Additive to Column 1; EU/TW net-of-MFN to 10%, JP/KR/CH to 12.5% | HTSUS Rev.21 note 52(a), 52(k) |
| FL301 | CN301 | stack | Stacks with China 301 | note 52(a) |
| FL301 | S232 | exempt_b | Goods entered under the listed 232 headings are exempt from FL-301 (9903.05.90); UAS 232 and polysilicon 232 are not in note 52(f) → FL-301 still applies (TBD_) | note 52(f)(1)–(8); Sec232_Carveout table |
| FL301 | FTA | note | Preference claims do not exempt, except USMCA duty-free (9903.05.93/.94) and CAFTA-DR textiles (9903.05.95) | note 52(a), (g)–(i) |
| FL301 | CH98 | note | Chapter 98 exempt except 9802.00.40/.50/.60 (value of repairs) and 9802.00.80 (value less U.S. content) | note 52(a) |
| CN301 | BASE | stack | Additive to Column 1 | note 20(a)/(c)/(e)/(g)/(r); note 31(a) |
| CN301 | S232 | stack | Stacks: neither 301 nor 232 exempts the other for China | note 20 / 31; the 232 proclamations |
| CN301 | FTA | note | Preference claims do not exempt | note 20 / note 31(a) |
| CN301 | CH98 | note | Chapter 98 exempt except 9802.00.40/.50/.60/.80 | note 20 paragraphs / note 31(a) |
| CN301 | CN301 | note | Four-year-review products removed from note 20 lists (no double 25%); chassis and STS cranes stack with maritime 301 from 2026-11-10 | Rev.21 note 20 / 31 comparison; note 31(k)/(l) |
| S232 | BASE | stack | Additive on full customs value; cap headings mean Column 1 + 232 = 15%/10% in total | note 16 / 33 / 37 / 40 / 43 heading text |
| S232 | S232 | note | Precedence: semis > autos/MHDV > metals; auto/MHDV parts not subject to wood 232; wood and metals can stack; civil aircraft (GB/JP/TW) exempt from metals derivatives; pharma/UAS/polysilicon have no cross-232 exclusion | 232 overview table, "stacking" column; notes 16(m), 33, 38, 39 |
| S232 | FTA | note | Preferences do not exempt; USMCA content-based headings for derivative steel and vehicles | note 16(g); note 33(d); note 38 |
| S232 | CH98 | tbd | Chapter 98 treatment varies by proclamation; not verified line by line (TBD_) | — · TBD_ |
Compiled from the HTSUS, the Federal Register, CBP CSMS messages and ACE reports as a classification and compliance reference, not legal advice; file according to current CBP/ACE guidance.