An Export Control Classification Number (ECCN) is the five-character code that tells you how the U.S. Export Administration Regulations (EAR) control an item, and so whether you need a licence to ship it to a given country, end user or end use. ECCN classification is the process of finding that code. Every later export decision rests on it: if the ECCN is wrong, each step that follows is wrong too.
What is an ECCN?
ECCNs are listed on the Commerce Control List (CCL), Supplement No. 1 to Part 774 of the EAR. The CCL is maintained by the Bureau of Industry and Security (BIS). Each ECCN, for example 3A001, 5A992 or 9A610, describes a group of items by technical parameters and states the reasons they are controlled.
The ECCN code itself has a set structure: a category digit, a product group letter and a three-digit number, often followed by a paragraph such as .c or .b.5. ECCN number structure explained decodes each part.
ECCN, EAR99 or ITAR?
Before you look for an ECCN, decide which regulation applies:
- An item described on the U.S. Munitions List is a defense article under the ITAR and has no ECCN.
- An item subject to the EAR and described by a CCL entry has an ECCN.
- An item subject to the EAR but not described by any entry is EAR99.
Jurisdiction therefore comes first (see ITAR vs. EAR: which regulation controls your item). EAR99 is a conclusion you reach only after the list has been checked. What is EAR99? explains the term, and how to confirm an item is EAR99 sets out the check.
How the Commerce Control List is organised
The CCL has ten categories: 0 nuclear and miscellaneous, 1 materials and chemicals, 2 materials processing, 3 electronics, 4 computers, 5 telecommunications and information security, 6 sensors and lasers, 7 navigation and avionics, 8 marine, and 9 aerospace and propulsion. Each category is divided into five product groups: A equipment and components, B test and production equipment, C materials, D software and E technology.
Every entry sits in exactly one category and group. The ten CCL categories and the CCL product groups A–E each have their own guide.
How ECCN classification works, step by step
- Describe the item accurately: its function, its technical parameters, and whether it is hardware, software or technology.
- Settle jurisdiction by confirming the item is not on the USML.
- Follow the Order of Review in Supplement No. 4 to Part 774, which puts 600 series and 9x515 entries before the rest of the CCL.
- Choose the category and product group.
- Read the candidate entries and match the paragraph whose parameters the item meets, applying definitions such as "specially designed" and any notes.
- If no multilateral entry applies, check the 9xx entries.
- Write down the conclusion (the ECCN and paragraph, or EAR99) and how you got there.
How to find the ECCN for your product goes through each step with examples. For step 5, see how to read an ECCN entry.
From ECCN to licence requirement
Each ECCN lists its reasons for control: national security (NS), missile technology (MT), nuclear nonproliferation (NP), chemical and biological weapons (CB), regional stability (RS), crime control (CC), anti-terrorism (AT) and others. You read these against the destination on the Commerce Country Chart (Supplement No. 1 to Part 738). An "X" in the matching column means a licence is required unless a licence exception in Part 740 applies.
Separate prohibitions in Parts 744 and 746 cover end uses, end users and embargoes. They apply whatever the ECCN. See how to use the Commerce Country Chart and the reasons for control explained.
Who classifies, and on what authority?
Most items are self-classified by the exporter or the manufacturer. A routine commercial item with published specifications can often be classified in minutes to hours. Borderline or novel items can take longer, and when the answer is unclear, BIS will classify an item on request and issue a Commodity Classification Automated Tracking System (CCATS) number. See self-classification vs. a BIS classification request.
Either way, the exporter remains responsible for the classification it exports under, even when it relies on a manufacturer's classification or a consultant's advice.
What happens if the ECCN is wrong?
A wrong ECCN can mean an unlicensed export, with civil penalties, denial of export privileges and, for wilful violations, criminal liability. It can also go the other way: a needless licence application that delays a legitimate sale. The most common ECCN classification mistakes are reading the heading and skipping the paragraphs, assuming EAR99, and relying on an old classification after the product or the regulation has changed.
Classifying software and technology
Software and technology have ECCNs too. Software is classified in product group D, and technology (technical data and know-how) in product group E of the relevant category. Encryption software is 5D002 or, if mass market, 5D992 (see encryption ECCNs 5A002, 5D002 and 5A992). Know-how for developing controlled integrated circuits is 3E001.
A useful rule is to classify exactly what crosses the border, in the form it crosses. A software download, a set of drawings emailed to a supplier and a training session for a foreign engineer are all exports that may need their own classification.
A worked example
Take a cylindrical roller bearing for submerged LNG pumps, specified for operation down to −60 °C. It is not a defense article, so the EAR applies. Bearings sit in Category 2, product group A. The multilateral entry 2A001 does not describe it. 2A991 covers bearings not controlled by 2A001, and its paragraph b.2 covers tapered roller bearings of a stated precision class for operating temperatures below 219 K (−54 °C).
The bearing's −60 °C is 213 K, which is below 219 K. Assuming it meets the precision class, the classification is 2A991.b.2, controlled for anti-terrorism reasons. The record shows the entry, the paragraph, the temperature converted to kelvin and the comparison.
Short glossary
| Term | Meaning |
|---|---|
| CCL | The Commerce Control List, Supplement No. 1 to Part 774. |
| Reasons for control | The codes (NS, MT, AT and others) that link an ECCN to the Country Chart. |
| Order of Review | The sequence in Supplement No. 4 to Part 774 for reviewing the CCL. |
| CCATS | A formal BIS classification. |
| EAR99 | Subject to the EAR but not listed on the CCL. |
ECCN classification in ECCN.help
The ECCN.help Classification Workflow takes these steps in order. It runs the ITAR vs. EAR scope check, then asks for the category and product group, offers candidate entries from your description, and asks only the questions the entry turns on, using figures read straight from your description. The workflow is rule-based, with no AI. The same item gets the same answer against the same version of the regulation, it can never return an ECCN that does not exist, and every result shows the rule that decided it. Every account includes five classifications.
ECCN.help provides research and assistance, not legal advice. Verify every result against the regulation.