ECCN and EAR99 Explained: How US Export Control Classification Works

An Export Control Classification Number (ECCN) is the five-character code, such as 3A001 or 5A992, that places an item on the Commerce Control List (CCL) in the US Export Administration Regulations (EAR). Items that are subject to the EAR but not described on the CCL are designated EAR99. The ECCN is not a tariff code and not a screening result: it answers one question, which is what the item is for export control purposes. Read together with the destination on the Commerce Country Chart, it tells you whether a licence is needed. The key takeaway is that EAR99 means "no list-based control", not "no licence ever", and that the exporter, not the forwarder or the manufacturer, carries the classification.

This guide covers classification itself. Checking the people you ship to is a separate step, covered in our guide to restricted party screening, and the tariff code that drives duty and statistics is covered in HS codes explained.

ECCN, HS code and screening: three different questions

The most common mix-up in export paperwork is treating these as interchangeable. They are three separate determinations, made against three separate lists, and getting one right tells you nothing about the others.

A product can have a routine HS code and a tightly controlled ECCN. There is no official crosswalk between the two, so a tool that suggests an ECCN from a Schedule B number gives you a lead to check, not an answer.

How an ECCN is built

15 CFR 738.2 sets out the structure. Every ECCN reads as a digit, a letter, then three more characters.

First character: the category

The CCL has ten categories: 0 nuclear materials, facilities and equipment (and miscellaneous); 1 materials, chemicals, microorganisms and toxins; 2 materials processing; 3 electronics; 4 computers; 5 telecommunications and information security; 6 lasers and sensors; 7 navigation and avionics; 8 marine; 9 aerospace and propulsion.

Second character: the product group

Each category uses the same five groups: A equipment, assemblies and components; B test, inspection and production equipment; C materials; D software; E technology. So 3A covers electronic equipment and components, and 3E covers the technology to develop or produce them.

Last three characters: the type of control

The remaining digits signal the main reason for control, in order of precedence. The ranges in 738.2(d) are:

• 000 to 099: National Security (NS)
• 100 to 199: Missile Technology (MT)
• 200 to 299: Nuclear Nonproliferation (NP)
• 300 to 399: Chemical and Biological (CB)
• 500 to 599: Firearms, spacecraft and related items (including the 9x515 entries)
• 600 to 699: The "600 series", military items that moved from the US Munitions List or track the Wassenaar Munitions List
• 900 to 979: Plurilateral NS, Regional Stability and other reasons
• 980 to 989: Crime Control and Short Supply
• 990 to 999: Anti-terrorism, Regional Stability and UN sanctions

The regulation's own examples show how to read them: 3A001 is a category 3, group A item in the national security range, while 2B991 (with 99 as its middle digits) is controlled for a unilateral US concern, in that case anti-terrorism. The decoding is a reading aid, though. The licence requirement comes from the entry's own "License Requirements" section, which can list several reasons for control at once.

What EAR99 actually means

Under 15 CFR 734.3(c), items subject to the EAR that are not listed on the CCL are designated EAR99. 15 CFR 732.3(b)(3) calls it a "basket" for items not specified under any CCL entry. Many ordinary commercial goods (furniture, clothing, many consumer products and general industrial supplies) typically end up here, though each product still needs checking.

BIS's own guidance says EAR99 items do not need a licence "in most situations". The exceptions are where the trouble sits:

• Embargoed and sanctioned destinations. Part 746 imposes licence requirements on many EAR99 items to destinations such as Cuba, Iran, North Korea, and Russia and Belarus (where supplements to Part 746 list sector-specific and luxury goods).
• Restricted parties. Many Entity List entries impose a licence requirement for all items subject to the EAR, EAR99 included.
• Prohibited end uses. Part 744 controls exports for certain weapons, military and other end uses regardless of classification.

EAR99 is also not the same as "not subject to the EAR". Defence articles on the US Munitions List (governed by the ITAR) and published information excluded under 734.3(b) sit outside the EAR altogether, which is why the Order of Review starts by ruling out the ITAR.

How to classify: three routes

BIS describes three ways to find an ECCN. Whichever you use, 15 CFR 732.3(b)(1) is blunt: the exporter is responsible for correctly classifying the items, and "failure to classify or have classified the item correctly does not relieve the person of the obligation to obtain a license when one is required".

1. Ask the manufacturer

For a product you resell, the manufacturer, producer or developer usually knows its ECCN, and BIS keeps a Classification Information Table of companies that have voluntarily shared classification information. Treat a supplier's ECCN as evidence: keep it on file and check it against the current CCL, because entries change.

2. Self-classify

You may classify on your own without BIS involvement. The method is the Order of Review in Supplement No. 4 to Part 774:

1. Confirm the item is not on the US Munitions List.
2. Identify the likely category from the item's general characteristics, then the product group.
3. Check the "600 series" and 9x515 entries first, because they take precedence over other ECCNs.
4. Check those entries' catch-all ".x" paragraphs, applying the "specially designed" definition in 15 CFR 772.1.
5. Work through every other ECCN in the product group from the beginning, reading each entry's "List of Items Controlled" against your technical specifications.
6. If nothing describes the item, it is EAR99.

This needs real technical data (performance parameters, frequencies, encryption functions), not a sales brochure. Record which entries you considered and why they do not fit: that file is your defence if the classification is questioned. BIS publishes an interactive CCL and an Order of Review decision tool to help.

3. Ask BIS for a classification (CCATS)

Under 15 CFR 748.3 you can submit a classification request through BIS's SNAP-R system. Each request covers up to six items, must attach technical literature, and must propose an ECCN with reasoning (or explain why you cannot). BIS assigns each determination a Commodity Classification Automated Tracking System (CCATS) number. 15 CFR 750.2 sets a 14 calendar day target for answering classification requests, so build that time into any shipment that depends on the answer. A CCATS is worth having for products you export repeatedly or where self-classification is genuinely ambiguous.

From ECCN to licence decision: the Commerce Country Chart

Classification is only step one. 15 CFR 738.4 sets out the licence decision:

1. Open the ECCN and read its "License Requirements" section. It lists each reason for control with a Country Chart column, for example NS Column 1 or AT Column 1.
2. Go to the Commerce Country Chart (Supplement No. 1 to Part 738). Countries run down the side; reason-for-control columns run across the top.
3. For each column the ECCN names, check whether there is an "X" against your destination. An X means a licence is required for that reason, unless a licence exception applies. No X in any relevant column means no licence is required under the CCL and Country Chart.
4. Even with no X, check the activity-based prohibitions in Part 736 (General Prohibitions Four to Ten): restricted parties, prohibited end uses, embargoes.

Section 732.3 uses ECCN 6A007 as an example: it is controlled for national security, missile technology and anti-terrorism reasons, so you would check three columns for the destination. Work through every reason for control rather than stopping at the first X, as 738.4 advises, because the full picture decides which licence exceptions are open. Some ECCNs bypass the chart and state their own licence requirements, so read the whole entry.

Licence exceptions, at a high level

Where the Country Chart says a licence is required, Part 740 may provide a licence exception. An ECCN's "License Exceptions" section flags which ECCN-driven exceptions might apply, but each has its own conditions in Part 740, and 15 CFR 740.2 lists restrictions that override all of them. Common ones include:

• LVS (740.3): limited-value shipments to Country Group B, up to the dollar limit in the ECCN's LVS line.
• GBS (740.4): eligible items to Country Group B.
• TMP (740.9) and RPL (740.10): temporary exports, and servicing and replacement parts.
• ENC (740.17): encryption items, often with classification or reporting conditions.
• STA (740.20): Strategic Trade Authorization to closely allied countries.

Part 740 is not static: as of October 2026 it runs from 740.1 to 740.29, and several of the newer exceptions deal with advanced computing and semiconductors. When no licence is required at all, the export goes out as NLR (No License Required).

How the ECCN reaches the EEI filing in AES

15 CFR 758.1 links classification to the Electronic Export Information. For each line, the filer reports the licence authority (licence number, licence exception symbol or NLR), the ECCN when required, and an item description in CCL terms. In summary, under 758.1(g):

• Under a licence: the licence code, licence number, ECCN and a description identical to the licence.
• Under a licence exception: the ECCN, the exception symbol (for example LVS or GBS) and the matching licence code.
• NLR, EAR99: the NLR licence code (C33). No ECCN field is needed for EAR99.
• NLR, CCL-listed: the ECCN must be entered if the item is controlled for any reason other than, or in addition to, anti-terrorism. For China (including Hong Kong), Russia or Venezuela, the ECCN must be entered whatever the reason for control.

The ECCN also changes when an EEI is required. Under 758.1(b), an EEI must be filed regardless of value for any export that needs a licence, for 600 series and 9x515 items, for exports under STA, and for any CCL-listed item going to China, Russia or Venezuela (with a narrow exemption). So the usual $2,500 per Schedule B line threshold does not protect a controlled item. Our guide to AES and EEI filing covers the rest of the filing.

For forwarders filing as agent, 15 CFR 758.3 is the key rule: hiring an agent does not relieve the exporter of compliance responsibility, and in a routed export where the foreign party takes on licensing responsibility, the US seller must still provide the ECCN or enough technical information to determine it on request. A forwarder entering "EAR99" because nobody supplied a classification is making a statement to the US government without a basis for it.

The EU dual-use equivalent, briefly

The EU controls the same kind of goods under Regulation (EU) 2021/821, the Dual-Use Regulation. Its control list is Annex I, which uses the same skeleton as the CCL: categories 0 to 9 and subcategories A to E, with codes such as 5A002. Both lists implement the multilateral regimes (Wassenaar Arrangement, Missile Technology Control Regime, Nuclear Suppliers Group, Australia Group, Chemical Weapons Convention), so multilateral entries often carry matching numbers.

The differences matter. The EU has no EAR99 label: an item is listed in Annex I or it is not, though catch-all provisions can still require an authorisation for unlisted items. US-only entries (such as the anti-terrorism entries with 99 as middle digits) have no EU counterpart, and parameters can differ. Annex I is replaced periodically by delegated regulation. The version in force as of October 2026 comes from Commission Delegated Regulation (EU) 2025/2003 of 8 September 2025, which entered into force in mid-November 2025. Law firms including Baker McKenzie and Ashurst report that the Commission adopted a further update on 14 September 2026, covering semiconductor manufacturing equipment and advanced computing among other items, which was in its two-month scrutiny period and not yet in force at the time of writing. Check the Official Journal before relying on either version.

Classifications go stale

An ECCN is a reading of the current list, not a permanent attribute of the product. The eCFR version history for the CCL shows amendments on seven separate dates between January and August 2026 alone. A product classified as EAR99 three years ago may now sit under a new or revised entry, and a supplier's spreadsheet may predate the change. Re-check classifications when BIS publishes a rule touching your categories, when a product's specifications change, and at least annually for repeat exports. Records required by the EAR must be kept for five years from the export or the latest later event, under 15 CFR 762.6. For how export controls sit alongside clearance, valuation and duties, see our complete guide to customs clearance and trade compliance.

What to do next

1. List every product you export and record its ECCN or EAR99 designation, with the source (manufacturer, self-classification file or CCATS) and the date you checked it.
2. For anything with an ECCN, run the Country Chart check for each destination and note whether it ships NLR, under a named licence exception or under a licence.
3. Give your forwarder the ECCN, licence authority and CCL description in writing with each shipment, so the EEI is filed on your data rather than a guess.
4. Screen the parties every time, separately from classification, and re-check classifications whenever BIS amends the categories you ship.

If you need a forwarder that handles controlled exports, more than 29,300 logistics companies are searchable by country and service in the CargoLinked directory; ask any candidate how they handle EEI filing and classification data before you book. You can also post your shipment on the public requests board, which lists freight that shippers have posted for forwarders to quote on directly.

This guide is general information, not legal, customs or export compliance advice. Export control rules change frequently; confirm current requirements with the Bureau of Industry and Security, the eCFR text of 15 CFR Parts 730 to 774, the relevant EU or national licensing authority, or a licensed trade compliance professional before shipping.