2B121 Category 2B

Positioning tables (equipment capable of precise rotary position in any axis), other than those controlled in 2B120, having all the following characteristics (See List of Items Controlled).

Category 2: Materials Processing

Reasons for control

MT: Missile technology
AT: Anti-terrorism

Country chart

Control	Column
AT applies to entire entry	AT 1
MT applies to entire entry	MT 1

List-based license exceptions

Exception	As stated in the entry
GBS	N/A
LVS	N/A

Items

Items: a. Two or more axes; and
b. A positioning “accuracy” equal to or better than 5 arc-second.

Related controls

(1) Equipment that has the characteristics specified in 2B121, which also meets the characteristics of 2B120 will be treated as equipment specified in 2B120. (2) See also 2B008, 2B120, 7B101, and 7B994.

Notes

Note: 2B121 does not control rotary tables designed or modified for machine tools or for medical equipment. For controls on machine tool rotary tables see 2B008.

Source: eCFR, version 2026-08-01, retrieved 2026-08-20T04:04:59+00:00.