ECCN 5A991 is the Export Control Classification Number the Bureau of Industry and Security (BIS) uses for telecommunications hardware that sits below the performance thresholds of the more heavily controlled ECCN 5A001. Because 5A991 items are controlled solely for anti-terrorism (AT) reasons, most shipments to major U.S. trading partners qualify as “No License Required” (NLR). Exports to embargoed and high-risk destinations still need a license, and even NLR shipments carry screening and recordkeeping duties.
What 5A991 Is and Why “AT-Only” Matters
The Commerce Control List (CCL) uses five-character codes to identify items subject to export controls under the Export Administration Regulations (EAR).1eCFR. Part 774 The Commerce Control List 5A991 sits within Category 5 (Telecommunications and Information Security), Product Group A (hardware and components). BIS’s interactive CCL defines it simply as “Telecommunication equipment, not controlled by 5A001.”2Bureau of Industry and Security. Interactive Commerce Control List
The “991” suffix signals the reason for control: anti-terrorism only. Items controlled for national security or other reasons carry different suffixes and face tighter licensing rules. AT-only makes 5A991 one of the least restrictive ECCNs on the CCL. Least restrictive is not unrestricted.
What Hardware Falls Under 5A991
5A991 is not a blanket bucket for all commercial networking gear. Basic home routers and standard Wi-Fi access points typically fall under EAR99. The actual 5A991 entry has defined subcategories, and getting the classification wrong in either direction creates problems.
Radio and Transmission Equipment
5A991.b.7 captures radio equipment using quadrature-amplitude-modulation (QAM) techniques.3FIU Export Control. List of ECCNs Subject to Part 744 Regulations Subcategory 5A991.a covers telecommunications equipment designed to function outside the normal commercial temperature range of 219 K (−54 °C) to 397 K (124 °C). Equipment built for extreme temperatures often signals military or ruggedized use, which is why BIS keeps it on the CCL even at AT-only.
Phased array antennae operating above 10.5 GHz fall under 5A991.f, except for landing systems that meet International Civil Aviation Organization (ICAO) standards. That carveout keeps routine microwave landing systems out of export controls.
Optical Fiber and Packet Switching
Optical fiber transmission equipment lands in 5A991 when it uses lasers with a transmission wavelength above 1,000 nm, analog equipment with bandwidth exceeding 45 MHz, coherent optical transmission or detection, wavelength division multiplexing, or optical amplification. Single-mode optical fiber cables longer than 50 meters fall under 5A991.d.4GovInfo (Federal Register). Revisions and Clarifications to the Export Administration Regulations; Commerce Control List
Packet switching equipment and data routing gear sit under 5A991.c. Packet switches, circuit switches, and routers are classified here when their channel controller data signaling rate exceeds 64,000 bit/s per channel or their network access controller digital transfer rate exceeds 33 Mbit/s. Equipment using optical switching is also captured.
Digital Cross-Connect Equipment
Stored program controlled digital cross-connect equipment falls under 5A991.c.7 when it has a digital transfer rate exceeding 8.5 Mbit/s per port.5GovInfo (Federal Register). Federal Register Vol. 68 No. 237, Revisions to Commerce Control List Equipment below that threshold generally falls outside the ECCN. Higher-performing gear in, lower-performing gear out.
Where the Line With 5A001 Sits
The dividing line comes down to specific technical capabilities. 5A001 captures radio equipment in the 1.5 MHz to 87.5 MHz range only when it both automatically predicts and selects frequencies to optimize transmission and incorporates a linear power amplifier capable of 1 kW or more output below 30 MHz (or 250 W or more between 30 and 87.5 MHz). Spread-spectrum radio equipment falls under 5A001 only if it has user-programmable spreading codes or total transmitted bandwidth 100 or more times the bandwidth of any single information channel and above 50 kHz.6GovInfo. Interim Final Rule: Information Security Controls: Cybersecurity Items Telecommunications hardware that doesn’t hit these thresholds but still has the features described in the 5A991 subcategories ends up in the lower-tier classification.
Software, Technology, and the Encryption Wrinkle
Classifying hardware under 5A991 has downstream effects. Software designed or modified for the development, production, or use of equipment controlled under 5A991.a, 5A991.b.7, and 5A991.f falls under ECCN 5D991. Technology for the same purposes falls under ECCN 5E991.7eCFR. Part 744 Control Policy: End-User and End-Use Based Both carry the same AT-only reason for control.
If your product includes encryption capabilities, the analysis gets more complicated. Encryption features are controlled under Category 5, Part 2 (Information Security), which is separate from the Part 1 telecommunications controls that govern 5A991. An item with encryption functionality may need to be evaluated under both. The encryption classification can carry additional “EI” (encryption items) controls that go beyond AT-only. Mass-market encryption items meeting the criteria in Note 3 to Category 5, Part 2 are reclassified under ECCN 5A992 or 5D992 after self-classification or BIS review, and a self-classification report is required.8eCFR. 15 CFR 740.17 Encryption Commodities, Software, and Technology (ENC)
How to Determine Your Classification
BIS offers three paths. You can self-classify by comparing your product’s technical specifications against the CCL entries, following the order-of-review procedure in Supplement No. 4 to Part 774. You can submit a formal classification request to BIS through the SNAP-R electronic system under 15 CFR 748.3. Or you can ask the original manufacturer, though BIS cautions that classifications change and you should verify any manufacturer-provided ECCN against the current CCL.9Bureau of Industry and Security. Classify Your Item
Self-classification works for straightforward items. If your product sits near the 5A991/5A001 boundary, or the technical parameters are ambiguous, a formal BIS classification request is worth the wait. A BIS determination is binding and protects you if questions arise later.
When You Need a License
Whether you need a license for a 5A991 shipment depends entirely on the destination. The Commerce Country Chart lists every destination alongside columns for each reason for control. If the country has an “X” in AT Column 1, a license is required. If not, you can ship NLR, assuming no other end-use or end-user restrictions apply.1eCFR. Part 774 The Commerce Control List
Major U.S. trading partners in Western Europe, Canada, Japan, Australia, and South Korea generally do not carry AT Column 1 restrictions, which is why the bulk of commercial telecommunications exports proceed without a license. Many countries in Africa, Asia, the Middle East, and Latin America do carry AT Column 1 marks.10eCFR. Supplement No. 1 to Part 738, Commerce Country Chart Check the chart for every new destination.
The most restricted destinations are Country Group E:1 (state sponsors of terrorism) and E:2 (unilateral embargo): Cuba, Iran, North Korea, and Syria. Exports there face the tightest controls regardless of ECCN.11eCFR. Supplement No. 1 to Part 740, Country Groups
What NLR Still Requires
NLR does not mean “no compliance.” Even when your 5A991 item ships without a license, you still have real obligations.
Party Screening
You have to screen every party to the transaction against the Consolidated Screening List, which combines restricted-party lists maintained by the Departments of Commerce, State, and Treasury, including the Denied Persons List, the Entity List, the Unverified List, and the Military End-User List.12Bureau of Industry and Security. Guidance on End-User and End-Use Controls and U.S. Person Controls Shipping to a listed party without authorization draws the same penalties as shipping without a license to a restricted destination.
Parties on the Unverified List carry a specific procedural requirement: no license exceptions may be used, and you must obtain a written statement from the party before shipping items that would otherwise not need a license. This applies to NLR shipments of 5A991 hardware.
Military End-Use and End-User Restrictions
Separately, the EAR prohibits exporting any item subject to the EAR, including 5A991 equipment, when you know it will be used for military purposes in certain countries. This currently applies to Burma, Cambodia, China, Nicaragua, Venezuela, Belarus, and Russia. The definition of “military end user” is broad, covering armed forces, government intelligence and reconnaissance organizations, and any entity supporting military end uses.13eCFR. 15 CFR 744.21 Restrictions on Certain Military End Uses or Military End Users
These end-use controls override NLR status. The “knowledge” standard includes awareness of a high probability, so willful blindness is not a defense.
Supercomputer End-Use Controls
Items classified under 5A991, including certain integrated circuits, face end-use restrictions when destined for the development, production, or operation of a supercomputer in Macau or countries listed in Country Group D:5.7eCFR. Part 744 Control Policy: End-User and End-Use Based This applies even when the item would otherwise qualify for NLR.
Deemed Exports
Export controls don’t apply only to physical shipments. Sharing controlled technology or source code with a foreign national inside the United States counts as a “deemed export” to that person’s home country.14Bureau of Industry and Security. Deemed Exports For 5A991-related technology, the same analysis applies: determine the foreign national’s home country, check the Commerce Country Chart for AT Column 1, and screen the individual against the CSL. Companies typically manage this risk through access controls, technology control plans, and awareness of which employees and contractors can see 5A991-related technical data.
Recordkeeping
Every party to an export transaction involving 5A991 items must retain records for five years from the date of export, the date of any known reexport or transfer, or any other termination of the transaction, whichever is latest. Records include export control documents, correspondence, contracts, invoices, financial records, and any other documents related to the transaction.15eCFR. 15 CFR Part 762 Recordkeeping
This applies to NLR shipments, not just licensed ones. Records may not be destroyed while any government request is pending, even if the five-year period has passed. NLR means no license application, not no documentation.
De Minimis for Foreign-Made Products
Foreign-manufactured products that incorporate U.S.-origin 5A991 components may themselves become subject to the EAR, depending on how much of the final product’s value comes from the controlled U.S. content. For reexports to Country Group E:1 or E:2 destinations (Cuba, Iran, North Korea, Syria), the foreign-made product is subject to the EAR if U.S.-origin controlled content exceeds 10% of the total value. For reexports to all other countries, the threshold is 25%.16eCFR. 15 CFR 734.4 De Minimis U.S. Content
If U.S.-origin content stays below the applicable threshold, the foreign-made product is not subject to the EAR for reexport purposes. This matters for multinational supply chains where U.S. telecommunications components get integrated into products assembled abroad.
Penalties and Voluntary Self-Disclosure
Criminal penalties for willful EAR violations include fines up to $1,000,000 per violation and imprisonment for up to 20 years for individuals, or both.17Office of the Law Revision Counsel. 50 USC 4819 Penalties Corporate fines can reach $1,000,000 or five times the value of the exports, whichever is greater. Administrative penalties, including civil fines and denial of export privileges, are handled separately by BIS’s Office of Export Enforcement.
BIS treats voluntary self-disclosure as a mitigating factor. For minor or technical violations, disclosure usually results in no action or a warning letter. For significant violations, outcomes range from no action to a formal charging letter and settlement. Deliberately choosing not to disclose a known violation is treated as an aggravating factor. A full narrative must be submitted within 180 days of the initial notification, or the mitigating benefit may be reduced or eliminated.18eCFR. 15 CFR 764.5 Voluntary Self-Disclosure Disclosure does not shield anyone from criminal prosecution; serious cases can still be referred to the Department of Justice.