Norway
Duty free*
- Their lines1 Norwegian line
29.31.5400 Trichlorfon (ISO)
Norwegian tariff data checked Sept. 13, 2026.
Code 2931 54 · Heading 2931
Trichlorfon “ISO”
This code covers Trichlorfon identified as “ISO”. It belongs to the group of isolated, chemically defined organic-inorganic compounds, excluding organic sulfur compounds and mercury compounds.
For example
- Trichlorfon “ISO”
See the official tariff text
Official tariff text
Trichlorfon "ISO"
Show the steps
Pick the 8-digit code
Import duty on the codes below: 0.0%*
Only one code below
2931 54 00
Trichlorfon "ISO"
Duty free*This subheading has one 8-digit code, so that is the code to use.
Compare the sibling codes
See all 17 codes at this levelClassification decides the rate here: from 0.0% to 6.5%.
- 2931 10 Tetramethyl lead and tetraethyl lead 6.5%*
- 2931 20 Tributyltin compounds 6.5%*
- 2931 41 Dimethyl methylphosphonate 6.5%*
- 2931 42 Dimethyl propylphosphonate 6.5%*
- 2931 43 Diethyl ethylphosphonate 6.5%*
- 2931 44 Methylphosphonic acid 6.5%*
- 2931 45 Salt of methylphosphonic acid and (aminoiminomethyl)urea (1: 1) 6.5%*
- 2931 46 2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide 6.5%*
- 2931 47 (5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate 6.5%*
- 2931 48 3,9-Dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide 6.5%*
- 2931 49 Separate chemically defined non-halogenated organo-phosphorous derivatives, n.e.s. 0.0–6.5%*
- 2931 51 Methylphosphonic dichloride 6.5%*
- 2931 52 Propylphosphonic dichloride 6.5%*
- 2931 53 O-(3-chloropropyl) O-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate 6.5%*
-
2931 54 Trichlorfon "ISO" you are here 0.0%*
- 2931 59 Separate chemically defined halogenated organo-phosphorous derivatives, n.e.s. 6.5%*
- 2931 90 Separate chemically defined organo-inorganic compounds (excl. organo-sulphur, mercury, tetramethyl lead, tetraethyl lead and tributyltin compounds, and organo-phosphorous derivatives) No rate on file
Selling to Norway, Great Britain and the United States
What they charge on arrival.
Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.
Great Britain
No single rate is published.
- Their lines1 British line
- EU originDuty free*
2931 54 00 00 Trichlorfon (ISO)
Northern Ireland follows other rules.
UK tariff data checked Sept. 13, 2026.
United States
10.0%†
Estimated from published US measures
- Their lines1 US line
- Entry dateSept. 17, 2026
2931.54.00.00 Other organo-inorganic compounds, Halogenated organo-phosphorous derivatives, Trichlorfon
The US importer of record files the entry.
US tariff data checked Sept. 16, 2026.
See the 1 Norwegian line
Selling to Norway
Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.
-
29.31.5400
Trichlorfon (ISO)
- Ordinary duty
- Duty free*
Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.
See the 1 British line
Selling to Great Britain
What UK customs charges when goods like these arrive in Great Britain.
-
2931 54 00 00
Trichlorfon (ISO)
- Ordinary duty
- Depends on the product details
- Goods of EU origin
- Duty free* You need documentation of EU preferential origin to use this rate.
These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.
Contains public sector information licensed under the Open Government Licence v3.0.
Source: UK Department for Business and Trade (data.api.trade.gov.uk).
See the 1 US line
Selling to the United States
What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.
-
2931.54.00.00
Other organo-inorganic compounds, Halogenated organo-phosphorous derivatives, Trichlorfon (ISO)
- General rate
- 3.7%
- From the EU
- 10.0%† Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99
Anti-dumping and countervailing duties, US import taxes and customs fees are not included.
The descriptions above are the US tariff texts, which the United States publishes in English only.
Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.
This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.
Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.
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