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Customs · Product
HS code classification
Classifies products to EU CN/HS codes step by step under the General Interpretative Rules, and returns the code with the reasoning behind it.
- CN codes indexed
- 24,000+
- WCO opinions
- 1,235
- Explanatory notes
- 815
Open the classifier ↗ Account required · book a call to request one
The problem
A single wrong code costs money.
Classification decides duties, delays and penalties. Experts work through thousands of codes, six General Interpretative Rules, section and chapter notes, explanatory notes and binding opinions — and the rules keep changing.
How it works
The rules, applied in order.
- 01
Describe the product
Free text or a technical specification. The material, function and form that matter for classification are pulled out.
- 02
Search the nomenclature
Hybrid vector and graph search across the full CN tree, its notes, exclusions and WCO opinions.
- 03
Apply the GIRs step by step
Section and chapter notes first, then heading and subheading text, exclusions and opinions — in the order the rules require.
- 04
Return the code with its reasoning
The CN/HS code, plus which rules, notes and opinions led to it, ready for audit.
Under the hood
An agent on TAG, with tools that know the tariff.
A classify app calls TAG-engine, which runs the classification workflow. The engine works through a dedicated tariff-tools service — search, lookup, hierarchy, notes, opinions, exclusions and classify — over a graph of the whole nomenclature with vector search on every node. The tools start and stop on demand through the engine’s project lifecycle, and everything runs on Azure.
Status
Live, by invitation.
The classifier is live for the EU Combined Nomenclature at app.tournesol.ai. You need an account to sign in.
No account yet? Book a call: tell us what you classify and we’ll create one for your team.