Classification Details
| Category | 2 — Materials Processing |
| Product Group | B — Test, Inspection & Production Equipment |
| Description | Numerically controlled optical finishing machine tools equipped for selective material removal to produce non-spherical optical surfaces having all of the following characteristics (See List of Items Controlled). |
| Control Reasons | ATNS |
| License Exceptions | GBSLVS |
Items Controlled
a. Finishing the form to less (better) than 1.0 µm; b. Finishing to a roughness less (better) than 100 nm rms; c. Four or more axes which can be coordinated simultaneously for "contouring control";
Related Controls
See also 2B001.
Items may also be controlled under the ITAR (22 CFR 121) administered by the State Department Directorate of Defense Trade Controls (DDTC).
Related Definitions
For the purposes of 2B002, 'MRF' is a material removal process using an abrasive magnetic fluid whose viscosity is controlled by a magnetic field. 'ERF' is a removal process using an abrasive fluid whose viscosity is controlled by an electric field. 'Energetic particle beam finishing' uses Reactive Atom Plasmas (RAP) or ion-beams to selectively remove material. 'Inflatable membrane tool finishing' is a process that uses a pressurized membrane that deforms to contact the workpiece over a small area.'Fluid jet finishing' makes use of a fluid stream for material removal.
See EAR Part 772 (15 CFR 772) for complete definitions of terms used in the CCL.
Related ECCNs
Export Control Context
Category 2 covers materials processing equipment including machine tools, isostatic presses, and numerically controlled manufacturing equipment. These items have significant dual-use potential for precision manufacturing of weapons components.
Source: BIS Commerce Control List, eCFR Title 15 Part 774. This reference is for informational purposes only. For licensing determinations, consult BIS.doc.gov or a licensed export compliance attorney.
Cross-Source Intelligence
CSL Entities
955
Related Export Codes (Schedule B)
Sources: BIS Commerce Control List (eCFR), Census Schedule B, BIS Consolidated Screening List