Category XI
Military Electronics
Paragraphs marked SME are Significant Military Equipment.
| Paragraph | Text |
|---|---|
| (a) | Electronic equipment and systems not included in Category XII of the U.S. Munitions List, as follows: |
| (1) | Underwater hardware, equipment, or systems, as follows: SME |
| (i) | Active or passive acoustic array sensing systems or acoustic array equipment capable of real-time processing that survey or detect, and also track, localize (i.e., determine range and bearing), classify, or identify, surface vessels, submarines, other undersea vehicles, torpedoes, or mines, having any of the following: |
| (ii) | Underwater single acoustic sensor system that distinguishes non-biologic tonals and locates the origin of the sound; |
| (iv) | Acoustic modems, networks, and communications equipment with real-time adaptive compensation or employing Low Probability of Intercept (LPI); |
| (v) | Low Frequency/Very Low Frequency (LF/VLF) electronic modems, routers, interfaces, and communications equipment, specially designed for submarine communications; or |
| (vi) | Autonomous systems and equipment that enable cooperative sensing and engagement by fixed (bottom mounted/seabed) or mobile Autonomous Underwater Vehicles (AUVs); |
| (2) | Underwater acoustic countermeasures or counter-countermeasures systems or equipment; SME |
| (3) | Radar systems and equipment, as follows: SME |
| (i) | Airborne radar that maintains positional state of an object or objects of interest, other than weather phenomena, in a received radar signal through time; |
| (ii) | Synthetic Aperture Radar (SAR) incorporating image resolution less than (better than) 0.3 m, or incorporating Coherent Change Detection (CCD) with geo-registration accuracy less than (better than) 0.3 m, not including concealed object detection equipment operating in the frequency range from 30 GHz to 3,000 GHz and having a spatial resolution of 0.1 milliradians up to and including 1 milliradians at a standoff distance of 100 m; |
| (iv) | Radar that geodetically-locates (i.e., geodetic latitude, geodetic longitude, and geodetic height) with a target location error 50 (TLE50) less than or equal to 10 m at ranges greater than 1 km; |
| (v) | Any Ocean Surveillance Radar with an average-power-aperture product of greater than 50 Wm 2; |
| (vi) | Any ocean surveillance radar that transmits a waveform with an instantaneous bandwidth greater than 100 MHz and has an antenna rotation rate greater than 60 revolutions per minute (RPM); |
| (ix) | [Reserved] |
| (x) | Air surveillance radar with a beam solid angle less than or equal to 16 degrees 2 that performs free space tracking of 1 square meter RCS target at a range greater or equal to 25 nmi with revisit rate greater or equal to 1/3 Hz; |
| (xi) | Instrumentation radar for anechoic test facility or outdoor range that maintains positional state of an object of interest in a received radar signal through time or provides measurement of RCS of a static target less than or equal to minus 10dBsm, or RCS of a dynamic target; |
| (xv) | Over the horizon high frequency sky-wave (ionosphere) radar; |
| (xx) | Radar employing electronic support (ES) mode(s) (i.e., the ability to use a radar system for ES purposes in one or more of the following: as a high-gain receiver, as a wide-bandwidth receiver, as a multi-beam receiver, or as part of a multi-point system); |
| (4) | Electronic Combat (i.e., Electronic Warfare) systems and equipment, as follows: SME |
| (i) | ES systems and equipment that search for, intercept and identify, or locate sources of intentional or unintentional electromagnetic energy specially designed to provide immediate threat detection, recognition, targeting, planning, or conduct of future operations; |
| (ii) | Systems and equipment that detect and automatically discriminate acoustic energy emanating from weapons fire (e.g., gunfire, artillery, rocket propelled grenades, or other projectiles), determining location or direction of weapons fire in less than two seconds from receipt of event signal, and able to operate on-the-move (e.g., operating on personnel, land vehicles, sea vessels, or aircraft while in motion); or |
| (5) | Command, control, and communications (C3); command, control, communications, and computers (C4); command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR); and identification systems or equipment, that: SME |
| (i) | Are specially designed to integrate, incorporate, network, or employ defense articles that are controlled in paragraphs or subparagraphs of the categories of § 121.1 of this part that do not use the term specially designed; |
| (ii) | Incorporate U.S. government identification friend or foe (IFF) Modes 4 or 5; |
| (iv) | Specially designed, rated, certified, or otherwise specified or described to be in compliance with U.S. government NSTISSAM TEMPEST 1-92 standards or CNSSAM TEMPEST 01-02, to implement techniques to suppress compromising emanations of information bearing signals; or |
| (v) | Transmit voice or data signals specially designed to elude electromagnetic detection; |
| (6) | [Reserved] |
| (7) | Developmental electronic equipment or systems funded by the Department of Defense via contract or other funding authorization; |
| (8) | Unattended ground sensor (UGS) systems or equipment having all of the following: |
| (i) | Automatic target detection; |
| (ii) | Automatic target tracking, classification, recognition, or identification; |
| (iv) | Self-localization for geo-locating targets; |
| (9) | Electronic sensor systems or equipment for non-acoustic antisubmarine warfare (ASW) or mine warfare (e.g., magnetic anomaly detectors (MAD), electric-field, electromagnetic induction); |
| (10) | Electronic sensor systems or equipment for detection of concealed weapons, having a standoff detection range of greater than 45 m for personnel or detection of vehicle-carried weapons, not including concealed object detection equipment operating in the frequency range from 30 GHz to 3,000 GHz and having a spatial resolution of 0.1 milliradians up to and including 1 milliradians at a standoff distance of 100 m; |
| (11) | Test sets specially designed for testing defense articles controlled in paragraphs (a)(3), (a)(4), (a)(5), or (b); or |
| (12) | Direction finding equipment for determining bearings to specific electromagnetic sources or terrain characteristics specially designed for defense articles in paragraph (a)(1) of USML Category IV or paragraphs (a)(5), (a)(6), or (a)(13) of USML Category VIII (MT if specially designed for rockets, SLVs, missiles, drones, or UAVs capable of delivering a payload of at least 500 kg to a range of at least 300 km. See note 2 to paragraph (a)(3)(xxix) of this category). |
| (b) | Electronic systems, equipment or software, not elsewhere enumerated in this subchapter, specially designed for intelligence purposes that collect, survey, monitor, or exploit, or analyze and produce information from, the electromagnetic spectrum (regardless of transmission medium), or for counteracting such activities. SME |
| (c) | Parts, components, accessories, attachments, and associated equipment, as follows: |
| (1) | Application Specific Integrated Circuits (ASICs) and Programmable Logic Devices (PLD) programmed for defense articles in this subchapter; |
| (2) | Printed Circuit Boards (PCBs) and populated circuit card assemblies for which the layout is specially designed for defense articles in this subchapter; |
| (3) | Multichip modules for which the pattern or layout is specially designed for defense articles in this subchapter; |
| (4) | Transmit/receive modules, transmit/receive monolithic microwave integrated circuits (MMICs), transmit modules, and transmit MMICs having all of the following: |
| (i) | A peak saturated power output (in watts), Psat, greater than 505.62 divided by the maximum operating frequency (in GHz) squared [Psat > 505.62 W * GHz2/fGHz2] for any channel; |
| (ii) | A fractional bandwidth of 5% or greater for any channel; |
| (iv) | At least one electronically variable phase shifter per channel. |
| (5) | High-energy storage capacitors that: |
| (i) | Have a rated voltage of greater than five hundred volts (500 V); |
| (ii) | Have a repetition rate greater than or equal to six (6) discharges per minute; |
| (iv) | Have any of the following: |
| (6) | Radio frequency circulators of any dimension equal to or less than one quarter ( 1/4) wavelength of the highest operating frequency and isolation greater than 30 dB; |
| (7) | Polarimeter that detects and measures polarization of radio frequency signals within a single pulse; |
| (8) | Digital radio frequency memory (DRFM) with RF instantaneous input bandwidth greater than 400 MHz, and 4 bit or higher resolution whose output signal is a translation of the input signal (e.g., changes in magnitude, time, frequency) and specially designed parts and components therefor; |
| (9) | Vacuum electronic devices, as follows: |
| (i) | Multiple electron beam or sheet electron beam devices rated for operation at frequencies of 16 GHz or above, and with a saturated power output greater than 10,000 W (70 dBm) or a maximum average power output greater than 3,000 W (65 dBm); or |
| (ii) | Cross-field amplifiers with a gain of 15 dB to 17 dB or a duty factor greater than 5%; |
| (10) | Antennas, excluding Traffic Collision Avoidance Systems (TCAS) or Airborne Collision Avoidance System (ACAS) antennas conforming to FAA TCAS or ACAS Technical Standard Orders (e.g., TSO C-119 or TSO-C219), as follows; and specially designed parts and components therefor: |
| (i) | Antennas, other than Controlled Reception Pattern Antennas (CRPAs), that employ four or more elements, electronically steer angular beams, independently steer angular nulls, create angular nulls with a null depth greater than 20 dB, and achieve a beam switching speed faster than 1 millisecond; |
| (ii) | Antennas, other than CRPAs, that form adaptive null attenuation greater than 35 dB with convergence time less than 1 millisecond; |
| (iv) | Antennas, other than CRPAs, that determine signal angle of arrival with an accuracy better than (less than) two degrees (e.g., interferometer antenna); |
| (v) | CRPAs specially designed for functions other than Position, Navigation, and Timing (PNT), that employ four or more elements, electronically steer angular beams, independently steer angular nulls, create angular nulls with a null depth greater than 20 dB, and achieve a beam switching speed faster than 1 millisecond; |
| (vi) | CRPAs specially designed for functions other than PNT, that form adaptive null attenuation greater than 35 dB with convergence time less than 1 millisecond; or |
| (11) | Radomes or electromagnetic antenna windows that: |
| (i) | Incorporate radio frequency selective surfaces; |
| (ii) | Operate in multiple non-adjacent frequency bands for radar applications; |
| (iv) | Have a melting point greater than 1,300 °C and maintain a dielectric constant less than 6 at temperatures greater than 500 °C; |
| (v) | Are manufactured from ceramic materials with a dielectric constant less than 6 at any frequency from 100 MHz to 100 GHz (MT if usable in rockets, SLVs, or missiles capable of achieving a range greater than or equal to 300 km; or if usable in drones or UAVs capable of delivering a payload of at least 500 kg to a range of at least 300 km. See note 2 to paragraph (a)(3)(xxix) of this category); |
| (vi) | Maintain structural integrity at stagnation pressures greater than 6,000 pounds per square foot; or |
| (12) | Underwater sensors (acoustic vector sensors, hydrophones, or transducers) or projectors, specially designed for systems controlled by paragraphs (a)(1) and (a)(2) of this category, having any of the following: |
| (i) | A transmitting frequency below 10 kHz for sonar systems; |
| (ii) | Sound pressure level exceeding 224 dB (reference 1 mPa at 1 m) for equipment with an operating frequency in the band from 10 kHz to 24 kHz inclusive; |
| (iv) | Forming beams of less than 1° on any axis and having an operating frequency of less than 100 kHz; |
| (v) | Designed to operate with an unambiguous display range exceeding 5,120 m; or |
| (vi) | Designed to withstand pressure during normal operation at depths exceeding 1,000 m and having transducers with any of the following: |
| (13) | Parts or components containing piezoelectric materials which are specially designed for underwater hardware, equipment, or systems controlled by paragraph (c)(12) of this category; |
| (14) | Tuners specially designed for systems and equipment in paragraphs (a)(4) and (b) of this category; |
| (15) | Electronic assemblies and components, capable of operation at temperatures in excess of 125 °C and specially designed for UAVs or drones controlled by USML Category VIII, rockets, space launch vehicles (SLV), or missiles controlled by USML Category IV capable of achieving a range greater than or equal to 300 km (MT) (see Note 2 to paragraph (a)(3)(xxix) of this category); |
| (16) | Hybrid (combined analogue/digital) computers specially designed for modeling, simulation, or design integration of systems enumerated in paragraphs (a)(1), (d)(1), (d)(2), (h)(1), (h)(2), (h)(4), (h)(8), and (h)(9) of USML Category IV or paragraphs (a)(5), (a)(6), or (a)(13) of USML Category VIII (MT if for rockets, SLVs, missiles, drones, or UAVs capable of delivering a payload of at least 500 kg to a range of at least 300 km or their subsystems. See note 2 to paragraph (a)(3)(xxix) of this category); |
| (17) | Chaff and flare rounds specially designed for the systems and equipment described in paragraph (a)(4)(iii) of this category, and parts and components therefor containing materials controlled in USML Category V; |
| (18) | Parts, components, or accessories specially designed for an information assurance/information security system or radio controlled in this subchapter that modify its published properties (e.g., frequency range, algorithms, waveforms, CODECs, or modulation/demodulation schemes); or |
| (19) | Any part, component, accessory, attachment, equipment, or system that (MT for those articles designated as such): SME |
| (i) | Is classified; |
| (ii) | Contains classified software directly related to defense articles in this subchapter or 600 series items subject to the EAR; or |
| (d) | Technical data (see § 120.33 of this subchapter) and defense services (see § 120.32 of this subchapter) directly related to the defense articles described in paragraphs (a) through (c) of this category and classified technical data directly related to items controlled in CCL ECCNs 3A611, 3B611, 3C611, and 3D611 and defense services using the classified technical data. (See § 125.4 of this subchapter for exemptions.) (MT for technical data and defense services related to articles designated as such.) |
| (e) | -(w) [Reserved] |
| (x) | Commodities, software, and technology subject to the EAR used in or with defense articles. |
Source: eCFR, version
2026-08-01, retrieved
2026-08-20T04:08:36+00:00.