ECCN 4A004

NSRSAT

Computers as follows and specially designed related equipment, electronic assemblies and components therefor.

Category: 4 - ComputersProduct Group: A - EquipmentLast Updated: 2026-04-10

What This ECCN Covers

ECCN 4A004 addresses computers specially designed or modified for military applications that operate in extreme environmental conditions — such as severe temperature ranges, high radiation fields, or strong electromagnetic interference. These ruggedized systems are controlled because they can be directly employed in weapons platforms and defense systems.

Who needs to check this?

Defense contractors, ruggedized electronics manufacturers, and companies producing computing equipment rated for MIL-STD environmental specifications.

Compliance tip

The key distinguishing factor is whether the system is "specially designed" for military use. Commercial off-the-shelf systems housed in protective enclosures may not meet this threshold.

Reviewed by Jack Tan · Last reviewed: May 8, 2026

Items Covered

  • a.'Systolic array computers';
  • b.'Neural computers';
  • c.'Optical computers'.
  • 1. Commodities that are described in 4A004 and that also meet or exceed the performance parameters in 4A090.a; or
  • z.2 Commodities that are described in 4A004 and that also meet or exceed the performance parameters in 4A090.b.

1 item reserved by BIS (not shown)

Control Reasons

NSNational Security

Items controlled for national security reasons under multilateral export control regimes.

Column 1: YesColumn 2: No
RSRegional Stability

Items controlled for regional stability reasons.

Column 1: YesColumn 2: No
ATAnti-Terrorism

Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.

Column 1: YesColumn 2: No

Disclaimer

This information is for reference only. For official classifications, consult BIS or a qualified export control professional.

Official Reference

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