6A007 Category 6A
Gravity meters (gravimeters) and gravity gradiometers, as follows (see List of Items Controlled).
Category 6: Sensors and Lasers
Reasons for control
- NS: National security
- MT: Missile technology
- AT: Anti-terrorism
Country chart
| Control | Column |
|---|---|
| AT applies to entire entry | AT 1 |
| MT applies to 6A007.b and .c when the accuracies in 6A007.b.1 and b.2 are met or exceeded | MT 1 |
| NS applies to entire entry | NS 2 |
List-based license exceptions
Items
- a. Gravity meters designed or modified for ground use and having a static “accuracy” of less (better) than 10 µGal;
- b. Gravity meters designed for mobile platforms and having all of the following:
- b.1. A static “accuracy” of less (better) than 0.7 mGal; and
- b.2. An in-service (operational) “accuracy” of less (better) than 0.7 mGal having a 'time-to-steady-state registration' of less than 2 minutes under any combination of attendant corrective compensations and motional influences;
- c. Gravity gradiometers.
Related controls
(1) See USML Category XII(d) for certain gravity meters (gravimeters) and gravity gradiometers subject to the ITAR. (2) See also ECCNs 6A107, 6A997, and 7A611.
Notes
Note: 6A007.a does not control ground gravity meters of the quartz element (Worden) type.
Technical Note: For the purposes of 6A007.b.2, 'time-to-steady-state registration' (also referred to as the gravimeter's response time) is the time over which the disturbing effects of platform induced accelerations (high frequency noise) are reduced.
Source: eCFR, version
2026-08-01, retrieved
2026-08-20T04:04:59+00:00.