ECCN 9E991

AT

Technology, for the development, production or use of equipment controlled by 9A991 or 9B991.

Category: 9 - AerospaceProduct Group: E - TechnologyLast Updated: 2026-04-10

What This ECCN Covers

ECCN 9E991 covers "technology" for the development, production, or use of the equipment controlled by 9A991 or 9B991 — the Anti-Terrorism companion technology entry for commercial aircraft, gas-turbine engines, and related tooling. As an "E" entry it governs intangible technology, including "deemed exports."

Who needs to check this?

Aerospace engineering teams transferring know-how for commercial aircraft, engines, and manufacturing tooling in 9A991/9B991.

Compliance tip

Tie the technology to the 9A991 or 9B991 commodity it supports. AT-only control limits licensing to a destination list, but intangible transfers and foreign-national access ("deemed exports") still require analysis; verify the Country Chart.

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

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