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ECCN Lookup 9A004

  • NS
  • RS
  • AT

Space launch vehicles and "spacecraft," "spacecraft buses," "spacecraft payloads," "spacecraft" on-board systems or equipment, terrestrial equipment, and air-launch platforms, and "sub-orbital craft," as follows (see List of Items Controlled).

Category:
9 — Aerospace & Propulsion
Product Group:
A — Equipment, Assemblies & Components
Last updated:
2026-05-04

Items Covered

  • a.Space launch vehicles.
  • b."Spacecraft."
  • c."Spacecraft buses."
  • d."Spacecraft payloads" incorporating items specified by 3A001.b.1.a.4 or z (if also described in 3A001.b.1.a.4), 3A002.g, 5A001.a.1, .b.3, 5A002.c, z.3 or z.8, .e, z.5, 6A002.a.1, a.2, .b, .d, 6A003.b, 6A004.c, .e, 6A008.d, .e, .k, .l or 9A010.c.
  • e.On-board systems or equipment, "specially designed" for "spacecraft" and having any of the following functions:
    • 1. 'Command and telemetry data handling;'
    • 2. 'Payload data handling;' or
    • 3. 'Attitude and orbit control;'
  • f.Terrestrial equipment specially designed for "spacecraft," as follows:
    • 1. Telemetry and telecommand equipment "specially designed" for any of the following data processing functions:
      • 1.a. Telemetry data processing of frame synchronization and error corrections, for monitoring of operational status (also known as health and safe status) of the "spacecraft bus;" or
      • 1.b. Command data processing for formatting command data being sent to the "spacecraft" to control the "spacecraft bus;"
    • 2. Simulators "specially designed" for 'verification of operational procedures' of "spacecraft".
  • g."Aircraft" "specially designed" or modified to be air-launch platforms for space launch vehicles or "sub-orbital craft."
  • h."Sub-orbital craft."
  • i.through q. [Reserved]
  • r.In-space habitats, other than the International Space Station (ISS).
  • s."Parts," "components," "accessories," and "attachments" that are "specially designed" for in-space habitats in 9A004.r and that are NOT:
    • 1. Described on the USML;
    • 2. Described in ECCN 7A004 or 7A104;
    • 3. Described in an ECCN containing "space-qualified" as a control criterion (refer to 9A515.x.4); or
  • s.4 Described in 9A001, 9A002, 9A003, 9A515, or 9A991.
  • t.[Reserved]
  • u.The James Webb Space Telescope (JWST) being operated under the supervision of the U.S. National Aeronautics and Space Administration (NASA).
  • v."Parts," "components," "accessories," and "attachments" that are "specially designed" for the James Webb Space Telescope and that are NOT:
    • 1. Described on the USML;
    • 2. Microelectronic circuits;
    • 3. Described in ECCN 7A004 or 7A104; or
    • 4. Described in an ECCN containing "space-qualified" as a control criterion (refer to 9A515.x.4).
  • w.The International Space Station being operated under the supervision of the U.S. National Aeronautics and Space Administration.
  • x."Parts," "components," "accessories," and "attachments" that are "specially designed" for the International Space Station.
  • y.Items that would otherwise be within the scope of ECCN 9A004.s or .x but that have been identified in an interagency-cleared commodity classification (CCATS) pursuant to § 748.3(e) as warranting control in 9A004.y.
    • 1. Discrete electronic components not specified in 9A515.e;
    • 2. Thermistors for spacecraft applications;
    • 3. RF microwave bandpass ceramic filters (e.g., Dielectric Resonator Bandpass Filters);
    • 4. Hall effect sensors for spacecraft applications;
    • 5. Subminiature (SMA and SMP) plugs and connectors, TNC plugs and cable and connector assemblies with SMA plugs and connectors for spacecraft applications;
    • 6. Flight cable assemblies for spacecraft applications;
    • 7. Public address (PA) systems;
    • 8. Audio selector panels;
    • 9. Spacecraft crew, passenger, or participant lavatories and body waste management systems;
    • 10. Spacecraft crew, passenger, or participant hygiene facilities and systems;
    • 11. Spacecraft crew, passenger, or participant crew rest equipment or sleeping quarters;
    • 12. Spacecraft crew, passenger, or participant galleys or food preparation or serving systems;
    • 13. Spacecraft crew, passenger, or participant entertainment systems;
    • 14. Spacecraft crew, passenger, or participant exercise systems;
    • 15. Spacecraft crew, passenger, or participant laundry systems;
    • 16. Spacecraft crew, passenger, or participant safety systems not including launch abort systems/launch escape systems, ejector seats, spacesuits, flight suits, helmets, or parts and components therefor;
    • 17. Spacecraft crew, passenger, or participant storage units, facilities, or systems (for items related to human safety, welfare, and health);
    • 18. Spacecraft crew, passenger, or participant medical facilities or health-related systems for monitoring, evaluating, or assessing, or for providing treatments;
    • 19. Spacecraft crew, passenger, or participant information systems (e.g., personal laptops and phones);
    • 20. Name plates, identification plates, and identification systems;
    • 21. Internal, external, and emergency lighting systems;
    • 22. Humidity and CO2 removal systems;
    • 23. Potable water storage systems;
    • 24. Water regeneration systems;
    • 25. Air filters, filter networks, or air quality systems;
    • 26. Space heaters, temperature sensors, or thermostats for human habitation;
    • 27. Environmental control systems for human habitation;
    • 28. Spacecraft environmental control systems (e.g., air conditioner, air distribution, air filtration and sanitation, CO2 removal, cabin pressure control, dehumidifier, fire suppression system, nitrogen oxygen recharge system, heater systems, thermostats);
    • 29. Plant growth systems;
    • 30. Fire extinguishers;
    • 31. Flame, smoke, or CO2 detectors;
    • 32. Fire suppression systems;
    • 33. Spacecraft crew, passenger, or participant seats and parts and components;
    • 34. Spaceflight crew, passenger, or participant ejection seat mounted survival aids;
    • 35. Spaceflight crew, passenger, or participant life rafts;
    • 36. Spacecraft crew, passenger, or participant locator beacons;
    • 37. Spacecraft crew, passenger, or participant mirrors;
    • 38. Spacecraft crew, passenger, or participant windows;
    • 39. Spacecraft locator beacons;
    • 40. Viewing windows on non-crewed spacecraft;
    • 41. Hydraulic, pneumatic, oil, fuel, gas, propellant, fluid, and thermal control fluid reservoirs, filters, filter assemblies, tubing, lines, hoses, check valves, and quick disconnects, and associated fittings, couplings, clamps, brackets, adapters, valves, gaskets, and shims;
    • 42. Gauges and indicators;
    • 43. Filtered and unfiltered panel knobs, indicators, annunciator panels, switches, buttons and dials;
    • 44. Energy dissipating pads for cargo or crew;
    • 45. Bracket adapters for bus and payload structures;
    • 46. Latches and hinges;
    • 47. Boom assemblies;
    • 48. Multiplexor and Demultiplexors (MUX & DEMUX);
    • 49. Switches, switch bank assemblies, beam select switches, transfer switch assemblies, switch matrices, thermal switches;
    • 50. Magnetic torque bars;
    • 51. Filters, filter networks;
    • 52. Network switches;
    • 53. Antenna feed horns;
    • 54. Diplexers, modulators, demodulators;
    • 55. Backshells, pins, and contacts;
    • 56. Measurement devices;
    • 57. Non Propulsive landing systems (e.g., skids, inflatable);
    • 58. Electrical connectors;
    • 59. Electric fans;
    • 60. Microphones;
    • 61. Speakers;
    • 62. Circuit breakers; and
    • 63. Printed circuit boards.

Control Reasons Explained

This ECCN is controlled for the following reasons. Each reason maps to a column on the Commerce Country Chart, which determines whether a license is required for a given destination.

NSNational Security
Items that could contribute to the military potential of countries of concern. Check the Commerce Country Chart column for NS to determine license requirements.
RSRegional Stability
Items that could destabilize regions through conventional-arms build-up. Review RS columns on the Commerce Country Chart.
ATAnti-Terrorism
Basic anti-terrorism controls that apply to most items on the CCL. A license is required for exports to countries designated as state sponsors of terrorism.

Common Questions About 9A004

What does ECCN 9A004 cover?
ECCN 9A004 is an entry on the Commerce Control List (Aerospace). The List of Items Controlled below describes the products, software, or technology captured by this classification. Compare your item against those parameters when self-classifying.
How do license requirements work for this ECCN?
License need depends on the control reasons shown for this code (for example NS, RS, MT, AT), the destination country, and how your transaction maps against the Commerce Country Chart, de minimis, and other EAR provisions. This page is a research aid only. Confirm against the current rule text and your specific facts before exporting.
Where is the official text for this ECCN?
The legal text appears in Supplement No. 1 to part 774 of the Export Administration Regulations (15 CFR Part 774). Use the official BIS link on this page to open the current supplement entry for this ECCN.
What if my product matches more than one ECCN?
When several ECCNs appear to fit, the controlling entry is usually the one that is most specific to your item's form, function, or technical limits. Cross-references in the List of Items Controlled and related ECCNs listed on this page are common starting points for narrowing the choice.
How often should I re-check this classification?
The Commerce Control List changes when BIS publishes new or amended rules. Revisit the official entry when regulations update, when the product's technical parameters change, or when the destination, end-user, or end-use of a transaction changes.
What do the control reason codes mean?
Each control reason (NS, RS, MT, AT, etc.) maps to a column on the Commerce Country Chart in Supplement No. 1 to part 738 of the EAR. When a control reason applies to your ECCN and the destination country has an X in that column, a license is generally required unless an exception applies. See the Control Reasons Explained section on this page for details on each code.

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