2B001 Category 2B

Machine tools and any combination thereof, for removing (or cutting) metals, ceramics or “composites”, which, according to the manufacturer's technical specifications, can be equipped with electronic devices for “numerical control”; as follows (see List of Items Controlled).

Category 2: Materials Processing

Reasons for control

• NS: National security
• NP: Nuclear nonproliferation
• AT: Anti-terrorism

Country chart

List-based license exceptions

Items

1. a. Machine tools for turning having two or more axes which can be coordinated simultaneously for “contouring control” having any of the following:
2. a.1. “Unidirectional positioning repeatability” equal to or less (better) than 0.9 µm along one or more linear axis with a travel length less than 1.0 m; or
3. a.2. “Unidirectional positioning repeatability” equal to or less (better) than 1.1 µm along one or more linear axis with a travel length equal to or greater than 1.0 m;
4. b. Machine tools for milling having any of the following:
5. b.1. Three linear axes plus one rotary axis which can be coordinated simultaneously for “contouring control” having any of the following:
6. b.1.a. “Unidirectional positioning repeatability” equal to or less (better) than 0.9 µm along one or more linear axis with a travel length less than 1.0 m; or
7. b.1.b. “Unidirectional positioning repeatability” equal to or less (better) than 1.1 µm along one or more linear axis with a travel length equal to or greater than 1.0 m;
8. b.2. Five or more axes which can be coordinated simultaneously for “contouring control” having any of the following:
9. b.2.a. “Unidirectional positioning repeatability” equal to or less (better) than 0.9 µm along one or more linear axis with a travel length less than 1.0 m;
10. b.2.b. “Unidirectional positioning repeatability” equal to or less (better) than 1.4 µm along one or more linear axis with a travel length equal to or greater than 1 m and less than 4 m; or
11. b.2.c. “Unidirectional positioning repeatability” equal to or less (better) than 6.0 µm along one or more linear axis with a travel length equal to or greater than 4 m;
12. b.3. A “unidirectional positioning repeatability” for jig boring machines, equal to or less (better) than 1.1 µm along one or more linear axis; or
13. b.4. Fly cutting machines having all of the following:
14. b.4.a. Spindle “run-out” and “camming” less (better) than 0.0004 mm TIR; and
15. b.4.b. Angular deviation of slide movement (yaw, pitch and roll) less (better) than 2 seconds of arc, TIR, over 300 mm of travel;
16. c. Machine tools for grinding having any of the following:
17. c.1. Having all of the following:
18. c.1.a. “Unidirectional positioning repeatability” equal to or less (better) than 1.1 µm along one or more linear axis; and
19. c.1.b. Three or four axes which can be coordinated simultaneously for “contouring control”; or
20. c.2. Five or more axes which can be coordinated simultaneously for “contouring control” having any of the following:
21. c.2.a. “Unidirectional positioning repeatability” equal to or less (better) than 1.1 µm along one or more linear axis with a travel length less than 1m;
22. c.2.b. “Unidirectional positioning repeatability” equal to or less (better) than 1.4 µm along one or more linear axis with a travel length equal to or greater than 1 m and less than 4 m; or
23. c.2.c. “Unidirectional positioning repeatability” equal to or less (better) than 6.0 µm along one or more linear axis with a travel length equal to or greater than 4 m.
24. d. Electrical discharge machines (EDM) of the non-wire type which have two or more rotary axes which can be coordinated simultaneously for “contouring control”;
25. e. Machine tools for removing metals, ceramics or “composites”, having all of the following:
26. e.1. Removing material by means of any of the following:
27. e.1.a. Water or other liquid jets, including those employing abrasive additives;
28. e.1.b. Electron beam; or
29. e.1.c. “Laser” beam; and
30. e.2. At least two rotary axes having all of the following:
31. e.2.a. Can be coordinated simultaneously for “contouring control”; and
32. e.2.b. A positioning “accuracy” of less (better) than 0.003°;
33. f. Deep-hole-drilling machines and turning machines modified for deep-hole-drilling, having a maximum depth-of-bore capability exceeding 5m.

Related controls

(1) See ECCN 2B002 for optical finishing machines. (2) See ECCNs 2D001 and 2D002 for software for items controlled under this entry. (3) See ECCNs 2E001 (“development”), 2E002 (“production”), and 2E201 (“use”) for technology for items controlled under this entry. (4) Also see ECCNs 2B201 and 2B991.

Notes

Note 1: 2B001 does not control special purpose machine tools limited to the manufacture of gears. For such machines, see 2B003.

Note 2: 2B001 does not control special purpose machine tools limited to the manufacture of any of the following: a. Crank shafts or cam shafts; b. Tools or cutters; c. Extruder worms; d. Engraved or faceted jewelry parts; or e. Dental prostheses.

Note 3: A machine tool having at least two of the three turning, milling or grinding capabilities (e.g., a turning machine with milling capability), must be evaluated against each applicable entry 2B001.a, .b or .c.

Note 4: A machine tool having an additive manufacturing capability in addition to a turning, milling or grinding capability must be evaluated against each applicable entry 2B001.a, .b or .c.

Note 1: 2B001.a does not control turning machines “specially designed” for producing contact lenses, having all of the following: a. Machine controller limited to using ophthalmic based “software” for part programming data input; and b. No vacuum chucking.

Note 2: 2B001.a does not apply to bar machines (Swissturn), limited to machining only bar feed thru, if maximum bar diameter is equal to or less than 42 mm and there is no capability of mounting chucks. Machines may have drilling or milling capabilities for machining parts with diameters less than 42 mm.

Notes: 2B001.c does not control grinding machines as follows: a. Cylindrical external, internal, and external-internal grinding machines, having all of the following: a.1. Limited to cylindrical grinding; and a.2. Limited to a maximum workpiece capacity of 150 mm outside diameter or length. b. Machines designed specifically as jig grinders that do not have a z-axis or a w-axis, with a “unidirectional positioning repeatability” less (better) than 1.1 µm. c. Surface grinders.

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