UK Export Control Classification Guide

What the UK Strategic Export Control Lists contain

GOV.UK publishes a consolidated list of strategic military and dual-use items that require export authorisation. It brings together several sources:

Part	What it covers	How entries look
UK Military List	Goods, software and technology specially designed or modified for military use	Categories ML1 to ML22, e.g. an entry under ML10 for military aircraft and related equipment
Dual-use list (Great Britain)	Items with civil uses that could also serve military or weapons purposes, from the assimilated dual-use regulation	Five-character codes, e.g. a category number, a product group letter and a three-digit number
UK national controls	Additional items the UK controls beyond the international regimes	Entries prefixed "PL"
Other lists	Items such as goods that could be used for torture, and radioactive sources	Their own schedules

In Northern Ireland, the EU dual-use regulation (Regulation (EU) 2021/821) applies to dual-use items. Check GOV.UK for how that affects your trade.

How dual-use codes are built

A dual-use code has a structure worth learning, because it tells you where to look:

Category (first digit, 0 to 9): for example 1 for special materials, 3 for electronics, 6 for sensors and lasers, 9 for aerospace and propulsion.
Product group (letter): A for systems, equipment and components; B for test, inspection and production equipment; C for materials; D for software; E for technology.
Number: the specific entry, often with sub-items and technical thresholds.

So a manufacturer of test equipment should read the B entries in the relevant category, and anyone sharing design data should read the E entries, not just the A entries for the finished product.

A step-by-step classification method

Describe the item precisely. Collect specifications, materials, performance figures, and the design history. Classification turns on technical parameters, not on marketing names.
Ask whether it was specially designed or modified for military use. If so, start with the Military List. The lists define "specially designed"; read the definition rather than relying on everyday meaning.
Check the dual-use list. Work through the relevant categories and compare your parameters with each entry's thresholds. An item can fall just outside an entry because of a single figure.
Check the UK national (PL) entries and the other lists that might apply.
Classify software and technology separately. Production and development technology for a controlled item is often controlled even where the finished item is shipped under a licence. Read the general technology and software notes, which set out exclusions such as information already in the public domain.
Use ECJU's tools. The online checker helps identify possible ratings and open licences. For a formal view, ECJU's control list classification advice service accepts requests through its online licensing system. The advice is advisory; responsibility stays with the exporter.
Record your reasoning. Keep a classification record for each item: the rating (or "not listed"), the entries considered, the parameters compared, who decided and when. Review it when the design or the lists change.
Then consider end-use controls. An unlisted item can still need a licence if you know or have been told it is intended for certain military or weapons uses. Screen customers and end users as part of every order.

Common classification mistakes

Classifying the product but not its components or spares, which may have their own entries.
Assuming "civil" means "not controlled". Many dual-use entries cover commercial products.
Relying on a supplier's rating without checking it. Ask for their reasoning, and check it against the list.
Using a US classification as the UK rating. US Export Control Classification Numbers and US Munitions List categories are separate systems. They often align with UK dual-use codes, but the UK rating must be determined under UK lists.
Forgetting list updates. The lists change when the international regimes agree changes, and GOV.UK publishes notices to exporters when they do.

Why buyers ask for your ratings

Prime contractors and overseas customers ask for the rating of every controlled part they buy, so they can plan their own licences. Supplier pre-qualification, such as JOSCAR, includes export control questions. A classification record kept against each part number answers these requests quickly. Keeping that record next to lot and serial records is simpler when both live in one system; for example, Cargovate's platform keeps part records and custody together for goods in transit.

Next steps after classification

If the item is rated, choose a licence route: see OGEL vs SIEL. If the item has US-origin content or was developed with US technical data, also check US rules; see AUKUS and export controls.

Common questions

Who is responsible if the rating is wrong?

The exporter. Advice from ECJU or a consultant helps show diligence, but it does not transfer the legal responsibility.

Do I need to classify items I only sell in the UK?

Export controls apply when items leave the UK or technology is transferred abroad. Many firms classify everything anyway, because UK customers may export the items later and will ask.

Is software on a public website controlled?

The lists contain notes that exclude some public domain information and some mass-market software, with conditions. Read the notes carefully; "downloadable" does not automatically mean "public domain" in the legal sense.

Does a UK rating tell me whether US rules apply?

No. US controls depend on US-origin content and US classifications, which are assessed separately under US rules.

How often should classifications be reviewed?

Whenever the design changes, and whenever the lists are amended. A periodic review, for example annually, catches changes that were missed.