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ECCN Decoder: Commerce Control List Categories, Groups and Reasons for Control

An ECCN is the Export Control Classification Number that places an item on the Commerce Control List. This decoder explains each part of the number and the reason for control codes you will see on the ECCN entry and the Commerce Country Chart.

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Part of the ECCN	Code	Meaning	Example or note
Category	0	Nuclear Materials, Facilities and Equipment, and Miscellaneous	0A501 firearms and related items
Category	1	Materials, Chemicals, Microorganisms and Toxins	1C010 fibrous and filamentary materials
Category	2	Materials Processing	2B001 machine tools
Category	3	Electronics	3A001 electronic components
Category	4	Computers	4A003 digital computers
Category	5	Telecommunications (Part 1) and Information Security (Part 2)	5A002 information security items
Category	6	Sensors and Lasers	6A003 cameras
Category	7	Navigation and Avionics	7A003 inertial systems
Category	8	Marine	8A001 submersible vehicles
Category	9	Aerospace and Propulsion	9A610 military aircraft and related items
Product group	A	Systems, equipment and components	Hardware and parts
Product group	B	Test, inspection and production equipment	Machines and tooling used to make items
Product group	C	Materials	Alloys, chemicals, compounds
Product group	D	Software	Software specially designed for controlled items
Product group	E	Technology	Technical data for development, production or use
Reason for control	NS	National Security	Common for Wassenaar related dual-use items
Reason for control	MT	Missile Technology	Missile Technology Control Regime items
Reason for control	NP	Nuclear Nonproliferation	Nuclear Suppliers Group items
Reason for control	CB	Chemical and Biological Weapons	Australia Group items
Reason for control	RS	Regional Stability	Used for many military related and 600 series items
Reason for control	FC	Firearms Convention	Firearms related items
Reason for control	CC	Crime Control	Crime control and detection equipment
Reason for control	AT	Anti-Terrorism	Applies to the broadest set of destinations
Reason for control	EI	Encryption Items	Encryption controls in Category 5 Part 2
Reason for control	SL	Surreptitious Listening	Eavesdropping equipment
Reason for control	UN	United Nations Embargo	Items subject to UN arms embargo restrictions
Reason for control	SS	Short Supply	Items controlled to conserve supply
Classification	EAR99	Subject to the EAR but not listed on the CCL	Most low-tech commercial goods, still needs screening
Classification	600 series	Military items moved from the USML to the CCL	9A610, 3A611, 8A609 and similar
Classification	9x515	Spacecraft and related items moved from the USML	9A515 spacecraft and related equipment
Format	3A001	Category 3, group A, item number 001	Read left to right: category, group, number

The two digits after the group letter indicate the control regime in broad terms: numbers beginning with 0 are generally Wassenaar controlled, 1 for MT, 2 for NP, 3 for CB, 6 for the 600 series munitions and 9 for unilateral controls. Entries differ in detail. The actual license requirement comes from the Commerce Country Chart and the ECCN entry, not from this table.

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Optional: a short review of how to store ECCN and USML data on items and block shipments to unscreened destinations.

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How to read an ECCN

Take the example 3A001. The first digit is the CCL category, here Electronics. The letter is the product group, here A for equipment, assemblies and components. The last three digits identify the specific entry. Look up the entry in Supplement No. 1 to Part 774 of the EAR and read the License Requirements section, which lists the reasons for control. Then use the Country Chart in Supplement No. 1 to Part 738 to see whether a license is needed for the destination.

Reasons for control drive the answer

A reason for control such as NS or RS only creates a license requirement for destinations marked on the Country Chart for that reason. AT applies to a small group of destinations. An ECCN with only AT control will often ship without a license to most countries, though sanctions and end-use rules still apply. That is why classification alone is not the license decision. You also need destination, end user and end use.

Find the ECCN entry and its reasons for control
Check the destination on the Country Chart
Screen the party and the end use
Look for a license exception only after confirming a license is needed

600 series, 9x515 and EAR99

Export reform moved many military items from the USML to the CCL as 600 series and 9x515 entries. These carry stricter policies than usual dual-use items, including control for most destinations and limits on license exceptions. EAR99 is the catch-all for items subject to the EAR but not listed. It is not a free pass, since embargoes, denied party lists and end-use restrictions apply to EAR99 shipments.

Common mistakes

Teams copy the ECCN from a supplier or datasheet without checking it, use the wrong item such as the machine instead of its software, or classify a finished system by its commercial purpose when a component drives the control. Do not mix up ECCN with the Schedule B or HTS number, which are tariff codes. Keep the classification rationale on file and review it when the product changes.

Frequently Asked Questions

What is the difference between an ECCN and an HTS code?

An ECCN is the export control classification from the Commerce Control List and determines licensing. An HTS or Schedule B number is a tariff code used for customs duties and trade statistics. Both may be needed on an export, but they answer different questions.

What does EAR99 mean?

EAR99 covers items that are subject to the EAR but not specifically listed on the Commerce Control List. They generally do not need a license for most destinations, but embargoed countries, restricted parties and prohibited end uses still require authorization.

What is a 600 series ECCN?

A 600 series ECCN, such as 9A610 or 3A611, covers military items moved from the USML to the CCL during export control reform. They are treated more strictly than ordinary dual-use items and have limited license exception availability.

Can I rely on the manufacturer's ECCN?

It is a useful input, but you are responsible for your own export decisions. A manufacturer ECCN may refer to a different configuration or version. Confirm that it matches your product and keep a copy of the statement with your records.

If your item master lacks ECCN data or you want automatic holds when a controlled item is ordered for a foreign ship-to, we can build that on your own ERP data. The decoder works without it.

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