ECCN 5E991

AT

Technology for the Development, Production or Use of Equipment Controlled by 5A991 or 5B991, or Software Controlled by 5D991, and Other Technologies as Follows .

Category: 5 - TelecommunicationsProduct Group: E - TechnologyLast Updated: 2026-04-10

What This ECCN Covers

ECCN 5E991 controls "technology" for the development, production, or use of the telecommunications equipment controlled by 5A991 or 5B991 — the Anti-Terrorism companion technology entry for commercial telecom. As an "E" entry it governs intangible technology, including "deemed exports" to foreign nationals.

Who needs to check this?

Telecom engineering teams transferring know-how for commercial equipment across borders or to foreign nationals.

Compliance tip

Map the technology to the 5A991/5B991 commodity it supports. AT-only control limits licensing to a destination list, but intangible transfers and foreign-national access ("deemed exports") still require analysis.

Reviewed by Jack Tan · Last reviewed: Jun 5, 2026

Items Covered

  • 1. "Technology" for the processing and application of coatings to optical fiber specially designed to make it suitable for underwater use;
  • 2. "Technology" for the "development" of equipment employing ‘Synchronous Digital Hierarchy’ (‘SDH’) or ‘Synchronous Optical Network’ (‘SONET’) techniques.

Control Reasons

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