6C994 Category 6C
Optical materials, as follows (see List of Items Controlled).
Category 6: Sensors and Lasers
Reasons for control
- AT: Anti-terrorism
Country chart
| Control | Column |
|---|---|
| AT applies to entire entry | AT 1 |
List-based license exceptions
Items
- Items: a. Low optical absorption materials, as follows:
- a.1. Bulk fluoride compounds containing ingredients with a purity of 99.999% or better; or
- a.2. Bulk fluoride glass made from compounds controlled by 6C004.e.1;
- b. ‘Optical fiber preforms’ made from bulk fluoride compounds containing ingredients with a purity of 99.999% or better, “specially designed” for the manufacture of ‘fluoride fibers’ controlled by 6A994.b.
Related controls
N/A
Notes
Note: 6C994.a.1 controls fluorides of zirconium or aluminum and variants.
Source: eCFR, version
2026-08-01, retrieved
2026-08-20T04:04:59+00:00.