ECCN 6A991

AT

Marine or terrestrial acoustic equipment, n.e.s., capable of detecting or locating underwater objects or features or positioning surface vessels or underwater vehicles; and specially designed parts and components, n.e.s.

Category: 6 - Sensors & LasersProduct Group: A - EquipmentLast Updated: 2026-04-10

What This ECCN Covers

ECCN 6A991 controls marine or terrestrial acoustic equipment, not elsewhere specified, capable of detecting or locating underwater objects or features, as defined in the entry — the Anti-Terrorism companion for commercial sonar and acoustic gear. As an AT-only entry, it reaches a limited set of destinations.

Who needs to check this?

Suppliers of commercial echo sounders, fish finders, sub-bottom profilers, and survey sonar that fall below the higher Category 6 thresholds.

Compliance tip

Rule out the higher-control acoustic entries first. AT-only control means a license is needed only to a limited destination list; verify the Country Chart and screen all parties against the Entity and SDN lists.

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