[nullc]

https://www.bis.doc.gov/index.php/documents/regulations-docs...

The main section on lasers starts on page 47. The rules are very complicated. See 6A995 d and f.

Lasers are also covered in other sections like 6A205. (I'm amused by Raman shifters being covered-- they're literally just pressurized tubes with hydrogen and mirrors at the end-- I can't imagine anyone qualified to use one couldn't have one fabricated pretty much anywhere).

[dmix]

Reading law is always full of weird stuff like that, in between thousands of lines of monotany.