DutyDeskDutyDeskU.S. tariff desk · HTSUS Rev.21 · updated 2026-10-26
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Data: HTSUS Rev.21 · 2026-10-25.12PrivacyAI-generated suggestion based on HTSUS text, not legal advice. Final classification rests with CBP rulings or licensed advice; the importer of record is responsible for the entry.

U.S. import duty lookup

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.

Don't know the U.S. import tariff code? Classify a product →

The entry date decides which measures apply; earliest 2026-09-15

Entry claims (optional)
MPF and HMF amounts need the entered value and the transport mode.
Examples:Vacuum flasks / ChinaCotton T-shirts / Viet NamEV lithium batteries / KoreaAluminum profiles / MalaysiaPassenger car / JapanSteel plate / CanadaWhisky / CanadaCoffee / BrazilQuartz countertops / China
2933.39.2500
Other
Heterocyclic compounds with nitrogen hetero-atom(s) only: › Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: › Other: › Other: › Pesticides › Herbicides:
Origin
CN · China
Entry date
2026-10-26
Unit
kg
Column 1 general
6.5%
Special
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 2
15.4¢/kg + 48.5%
SPI
—
HTS revision
2026 Rev.21
Print page
1549
Confirmed ad valorem total
19%
Column 1 general rate 6.5% + additional 12.5%
Maximum (conditional + AD/CVD deposits)
19%
floor 6.5% if exemptions apply
AD/CVD cases
0
none active

What to verify next

2Checks derived from this result; each item restates a measure, case or regulatory hit shown below.
  1. 1.RegulatoryTSCA import certification + PFAS 8(a)(7): File a positive TSCA certification (complies with all TSCA rules / orders) or a negative certification (pesticides / food / drugs / cosmeti…↗
  2. 2.RegulatoryChemical Weapons Convention schedules: Schedule 1: import only from States Parties, 45-day advance notice to BIS, annual report.↗

Base rate

Column 1 / Column 2 / SPI6.5%
Column 1 General (MFN)Applies
6.5%
Basis: HTSUS 2026 Rev.21 chapters 1–97Verification: VERIFIED

Section 301 forced labor

1+12.5%
Section 301 forced-labor tariff (12.5%)9903.05.31Applies
+12.5%

China: Column 1 rate + 12.5% additional

  • Pharmaceutical applications: exempt (9903.05.89)
Pharmaceutical use → 0% · 9903.05.89
Basis: HTSUS Ch.99 U.S. note 52; 91 FR 47318Effective: 2026-07-24CSMS / source: CSMS #69326983Verification: VERIFIED

Section 301 China

1N/A
China 301: not on any listN/A
—

8-digit subheading 2933.39.25 is not on Lists 1–4B or the four-year-review lists

Basis: HTSUS Ch.99 note 20 / 31 (2026 Rev.21)Verification: VERIFIED

PGA filing flags

EPA EP5EPA EP7ExpandCollapse
EPA EP5EPA EP7
  • EP5 Pesticides specific data may be required
  • EP7 Toxic Substances Control Act specific data may be required

may-be-required only · ACE valid to 2039-12-31

Fees

MPF 0.3464% · HMF 0.125%ExpandCollapse

no entered value: rates and limits only

MPF 0.3464% (min $34.58 / max $670.86)—
HMF 0.125% (ocean only)not ocean

Period 2026-10-01 – 2027-09-30 · 91 FR 48398 (2026-07-31, Doc. 2026-15530, FY2027)

Other import requirements

3

Supply chain / forced labor (UFLPA · WRO · CAATSA)

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).

Requirements without an ACE flag

TSCA import certification + PFAS 8(a)(7)EPA/CBPConditional
at-entry

File a positive TSCA certification (complies with all TSCA rules / orders) or a negative certification (pesticides / food / drugs / cosmetics / nuclear material) in ACE when importing chemical substances or mixtures. The EP7 flag is advisory only and the certification is the importer's responsibility. Finished articles are generally exempt unless a specific rule applies. PFAS: one-time reporting of PFAS and PFAS-containing articles imported since 2011.

2025–26: The PFAS reporting window is postponed to 2027-01-31 or 60 days after the final rule (2026-04-13); the 2025-11 proposal to exempt imported articles and ≤0.1% content is not final

Basis: 15 U.S.C. 2612; 19 CFR 12.118–.127; 40 CFR 707/705Scope: 29 (Determined by product attributes (the HTS code is only a hint))Exemptions: Articles are exempt unless a specific rule appliesCSMS / source: EPA TSCA import page; FR 2026-04-13Verification: H
FIFRA Notice of ArrivalEPAInfo
before-entry

File EPA Form 3540-1 before arrival / through ACE, with the EPA registration number and establishment number; labels via DIS

Basis: 19 CFR 12.112; 40 CFR 152Scope: EP5/EP6 (ACE flag present — see the PGA panel)CSMS / source: eCFR 19 CFR 12.112Verification: H
Chemical Weapons Convention schedulesBISConditional
before-entry

Schedule 1: import only from States Parties, 45-day advance notice to BIS, annual report. Schedule 2: import from non-States Parties prohibited, annual report above thresholds. Schedule 3: annual report.

Basis: 15 CFR 710–722Scope: 29 (Determined by product attributes (the HTS code is only a hint))CSMS / source: eCFR 15 CFR 712/713Verification: H
General requirements (all goods) (4)
  • Country-of-origin marking (CBP, 19 U.S.C. 1304; 19 CFR 134): Mark the country of origin legibly and permanently in English before release. J-list articles (§134.33) may be marked on the container. Special methods (§134.43: knives, scissors, surgical / scientific instruments, pliers and vacuum bottles must be die-stamped, etched or engraved). Pipe 7304–7307, gas cylinders 7311 and manhole covers 7325 under 1304(c)–(e). Watches and clocks per chapter 91 additional U.S. note 4. Hong Kong goods marked "China" (EO 13936; the origin code stays HK). eCFR 19 CFR 134; CBP HK FAQ
  • Wood packaging material (ISPM 15) (APHIS/CBP, 7 CFR 319.40-3): Wood pallets / crates for all goods must be heat-treated or fumigated and bear the IPPC mark; otherwise immediate re-export and penalties eCFR 7 CFR 319.40-3
  • Importer Security Filing (10+2) (CBP, 19 CFR 149): File the 10 data elements 24 hours before vessel loading (5 elements for FROB / IE / T&E); violations: $5,000 liquidated damages per shipment eCFR 19 CFR 149
  • FTC Made in USA Labeling Rule (FTC, 16 CFR 323): Unqualified "Made in USA" claims only when all or virtually all of the product is made in the U.S.; civil penalties FTC rule; EO 14392

PGA flags: what to prepare

EPA · PS1/PS2/PS3 EP5/EP6 — Pesticides, pesticide devices, treated articles

Before arrival: Product registered (EPA Reg. No.) and produced at an EPA-registered foreign establishment (Est. No.); compliant label; PS3 for the 40 CFR 152.30 exceptions

At entry: Notice of Arrival (EPA 3540-1) filed as the PGA message set with the entry; EPA Reg. No., Est. No.; label images via DIS

Disclaim: EP5: A; C / D allowed but trigger "documents required"; EP6 cannot be disclaimed

If missing: Hold intact / refusal; no release before EPA's "may proceed"

https://www.epa.gov/compliance/importing-and-exporting-pesticides-and-devices · Verification H

EPA · TS1 EP7/EP8 — Chemical substances and mixtures (articles only under a specific rule)

Before arrival: Confirm the substance is on the TSCA Inventory / complies with §5 / §6 orders; identify negative-certification categories (pesticides, food, drugs, cosmetics, nuclear material)

At entry: TSCA positive / negative certification in the PGA message set (or paper / DIS), with the certifier's name, e-mail and phone

Disclaim: EP7: A, B (§13 only, not Title VI); EP8 cannot be disclaimed

If missing: Refused admission; TSCA penalties

https://www.epa.gov/tsca-import-export-requirements/tsca-requirements-importing-chemicals · Verification H

Stacking rules that apply here 3ExpandCollapse
ABRelationRuleBasis
FL301BASEstackAdditive to Column 1; EU/TW net-of-MFN to 10%, JP/KR/CH to 12.5%HTSUS Rev.21 note 52(a), 52(k)
FL301FTAnotePreference claims do not exempt, except USMCA duty-free (9903.05.93/.94) and CAFTA-DR textiles (9903.05.95)note 52(a), (g)–(i)
FL301CH98noteChapter 98 exempt except 9802.00.40/.50/.60 (value of repairs) and 9802.00.80 (value less U.S. content)note 52(a)
Composition of the totalExpandCollapse
Column 1 general rate 6.5%6.5%
Section 301 forced-labor tariff (12.5%) Applies+12.5%
Floor 6.5%: Section 301 forced-labor tariff (12.5%): Pharmaceutical useif they hold

Data sources and disclaimer

HTSUS 2026 Rev.21 · 2026-10-25.12ExpandCollapse

Data sources

Tariff
HTSUS 2026 Rev.21
Data version
2026-10-25.12
AD/CVD
ACE case module + ITA dashboard

Disclaimer

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.